GridinSoft Threat Intelligence

Big5GB.exe threat report

Detected as Trojan.Heur! File reputation report
MD5 8a6ca9ac26fd70826921c38487859dd8
Latest seen 2026-05-24 11:00:46 (3 days ago)
First seen 2025-04-10 23:02:37 (a year ago)
Size 170 KB

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as Trojan.Heur!. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.

Detection name
Trojan.Heur!
Recommended action
Scan and remove
Last analysis
2026-05-24 11:00:46 (3 days ago)
File hash
8a6ca9ac26fd70826921c38487859dd8
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as Trojan.Heur!, part of the Trojan threat category.

Category context

Malware disguised as legitimate software or delivered through deceptive packaging. Related Trojan reports help compare this file with nearby detections, publishers, and hashes.

Timeline

First seen 2025-04-10 23:02:37 (a year ago); latest analysis 2026-05-24 11:00:46 (3 days ago).

Observed locations

ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.

Recommended action

What to do next

  1. Compare the MD5 above with the file found on the device.
  2. Check whether the file appears in the observed locations or under one of the alternate names.
  3. Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present. Review the Trojan category for related samples and common context.

File context

Big5GB.exe is a Windows file recorded in the ThreatInfo database. The current detection status is Trojan.Heur!, based on the latest analysis from 2026-05-24 11:00:46 (3 days ago). ThreatInfo groups this verdict with Trojan reports for broader family-level investigation.

If Big5GB.exe appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as Trojan.Heur!.

File Details

MD5: 8a6ca9ac26fd70826921c38487859dd8
Size: 170 KB
First Published: 2025-04-10 23:02:37 (a year ago)
Latest Published: 2026-05-24 11:00:46 (3 days ago)
Status: Trojan.Heur! (on last analysis)
Analysis Date: 2026-05-24 11:00:46 (3 days ago)

Detection screenshot

Big5GB.exe detection screenshot

The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.

Common Places:

%desktop%

ThreatInfo has observed Big5GB.exe in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.

Geographic signal

Observed country distribution

ThreatInfo has seen Big5GB.exe across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Taiwan
Share 100.0%
Low High activity

The strongest geographic signal for this file is Taiwan with 100.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 10 100.0%

The most common operating system signal for Big5GB.exe is Windows 10 with 100.0% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.

Analysis

Big5GB.exe is identified as pe for 32-bit systems. The subsystem is Windows GUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Format pe
Architecture 32-bit
Subsystem Windows GUI
Entry point 0x00063000
Image base 0x00400000

PE Sections:

Sections 10
Raw data 173056

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

CODE 102400 bytes · 59.2% of section data
MD5 c3b9a5aba6b36ddf6dabdf80ad72790a
DATA 1024 bytes · 0.6% of section data
MD5 d089394c779f39bebadb26e62e82bbf1
BSS 0 bytes · 0.0% of section data
MD5 d41d8cd98f00b204e9800998ecf8427e
.idata 3072 bytes · 1.8% of section data
MD5 5d7ee27692829c4c8f4fe47fc242e718
.tls 0 bytes · 0.0% of section data
MD5 d41d8cd98f00b204e9800998ecf8427e
.rdata 512 bytes · 0.3% of section data
MD5 b25396d8aa668f1ea6a8be298a1f8aa8
.reloc 0 bytes · 0.0% of section data
MD5 d41d8cd98f00b204e9800998ecf8427e
.rsrc 45056 bytes · 26.0% of section data
MD5 fe5c641ec7622344e5210065ba2e3bf5
.data 4096 bytes · 2.4% of section data
MD5 7054d736856e15c8984e6b35280965fa
挬^? 16896 bytes · 9.8% of section data
Uncommon name
MD5 0fbe9a4de87aa954cd2bc8c291d1ee4e

PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.

Report conclusion

GridinSoft detects this file as Trojan.Heur!

This report identifies Big5GB.exe by MD5 8a6ca9ac26fd70826921c38487859dd8. It is part of the Trojan report group. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.

Download GridinSoft Anti-Malware Scan the device and confirm whether this exact hash is present. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 8a6ca9ac26fd70826921c38487859dd8.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan and remove the object if the same hash is found. Use the Trojan category to compare similar reports.