GridinSoft Threat Intelligence

chrmstp.exe file report

Under review File reputation report
MD5 b5a71487cf8c3fc816720d9e79c24a03
Latest seen 2026-05-13 23:00:35 (2 weeks ago)
First seen 2026-05-13 23:00:30 (2 weeks ago)
Size 4 MB
Publisher BrowseAI LLC
Product Ace Installer
Signed by BrowseAI LLC

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2026-05-13 23:00:30 (2 weeks ago); latest analysis 2026-05-13 23:00:35 (2 weeks ago).

Publisher context

Company metadata: BrowseAI LLC. Product metadata: Ace Installer.

Digital signature

Signed by BrowseAI LLC. The signature is reported as valid, but signed files can still be bundled or abused.

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. Use the hash and metadata below to verify the exact file identity.
  2. Review publisher, signature, paths, and PE details for inconsistencies.
  3. Run a local scan if the file appears unexpectedly or starts with Windows.

File context

chrmstp.exe is a Windows file recorded in the ThreatInfo database. It is associated with Ace Installer. The reported company name is BrowseAI LLC. The current detection status is Undefined, based on the latest analysis from 2026-05-13 23:00:35 (2 weeks ago).

ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.

File Details

Product Name: Ace Installer
Company Name: BrowseAI LLC
MD5: b5a71487cf8c3fc816720d9e79c24a03
Size: 4 MB
First Published: 2026-05-13 23:00:30 (2 weeks ago)
Latest Published: 2026-05-13 23:00:35 (2 weeks ago)
Status: Undefined (on last analysis)
Analysis Date: 2026-05-13 23:00:35 (2 weeks ago)

Overview

Signed By: BrowseAI LLC
Status: Valid

The signature on chrmstp.exe is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.

Common Places:

%programfiles%\ace\ace\application\143.0.7517.0

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

Top country United States
Share 100.0%
Low High activity

The strongest geographic signal for this file is United States 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 chrmstp.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

chrmstp.exe is identified as pe for 64-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 64-bit
Subsystem Windows GUI
Entry point 0x00334880
Image base 0x0000000140000000

PE Sections:

Sections 12
Raw data 4577280

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

.text 3590144 bytes · 78.4% of section data
MD5 3ae718b00a441857b0efd7ce704e757e
.rdata 457216 bytes · 10.0% of section data
MD5 554c0c6185378c5333135f3c317921d6
.data 65536 bytes · 1.4% of section data
MD5 1c2463eea71c8ff891d29978aca61dbb
.pdata 70144 bytes · 1.5% of section data
MD5 3ca7180376b9c4b10067c2da05312d9e
.fptable 512 bytes · 0.0% of section data
Uncommon name
MD5 bf619eac0cdf3f68d496ea9344137e8b
.rodata 2560 bytes · 0.1% of section data
MD5 956c856939278d142083bef02b9de040
.tls 1024 bytes · 0.0% of section data
MD5 3caa3e299c7ba6566c7a8ff9db091769
CPADinfo 512 bytes · 0.0% of section data
Uncommon name
MD5 60d3ea61d541c9be2e845d2787fb9574
_RDATA 512 bytes · 0.0% of section data
Uncommon name
MD5 4be760f2694d84946bddec4d1598d5b2
malloc_h 512 bytes · 0.0% of section data
Uncommon name
MD5 687ff7473b26b0aaed183f5cafea9f7b
.rsrc 378880 bytes · 8.3% of section data
MD5 f856e78d55ab54f70f0c6f30779ff0fd
.reloc 9728 bytes · 0.2% of section data
MD5 6453750c815e207e635a003d5574fbe6

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

This file is still under review

ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.

Scan with GridinSoft Anti-Malware Use a local scan if the file origin or behavior is unclear. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with b5a71487cf8c3fc816720d9e79c24a03.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan if the source, path, or behavior looks unusual.