Malware Analysis Report

2025-04-14 05:11

Sample ID 250109-fmch3azjcx
Target f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe
SHA256 f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12
Tags
revengerat discovery stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12

Threat Level: Known bad

The file f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe was found to be: Known bad.

Malicious Activity Summary

revengerat discovery stealer trojan

Revengerat family

RevengeRAT

RevengeRat Executable

Executes dropped EXE

Loads dropped DLL

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-09 04:58

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-09 04:58

Reported

2025-01-09 05:01

Platform

win7-20241010-en

Max time kernel

14s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

RevengeRat Executable

stealer
Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe

"C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe"

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54417261 -chipde -d8bf290ea36a468f92fa71bb25c7b74c - -ChromeBundle -timwqmybtixrrond -655704

Network

Country Destination Domain Proto
US 8.8.8.8:53 thinklabs-ltd.de udp
DE 176.9.175.237:80 thinklabs-ltd.de tcp
US 8.8.8.8:53 bin.download-sponsor.de udp
DE 176.9.175.234:443 bin.download-sponsor.de tcp

Files

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/768-12-0x000007FEF595E000-0x000007FEF595F000-memory.dmp

memory/768-13-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-14-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\OCS\timwqmybtixrrond.dat

MD5 a249082fed4a9de72bb52195edae91bc
SHA1 08fe1882efd09aed1924041ebc7bb223da5a892b
SHA256 dca925aaa6cf2b55f1497ed9b0a906d54b805cc5667c15a23e0544d8bb9f10a3
SHA512 8e43696c5bf646c4baa35317cf98d6ab3289264e9ece60375df98ada854384eff90e7fa25818c52c71a0be66ac7a760c4671b8625e9e1b148ffc886015bdfb89

memory/768-16-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-17-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-18-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-19-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-20-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-21-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-22-0x000007FEF595E000-0x000007FEF595F000-memory.dmp

memory/768-23-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-24-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-25-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-26-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

memory/768-27-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-09 04:58

Reported

2025-01-09 05:01

Platform

win10v2004-20241007-en

Max time kernel

96s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

RevengeRat Executable

stealer
Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe

"C:\Users\Admin\AppData\Local\Temp\f91cadded4f5a52828083de1c0584aaff493c32dbe0b8699a507fa77f227aa12N.exe"

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54417261 -chipde -d8bf290ea36a468f92fa71bb25c7b74c - -ChromeBundle -uknydwsnuzsvkvhd -327826

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 thinklabs-ltd.de udp
DE 176.9.175.237:80 thinklabs-ltd.de tcp
US 8.8.8.8:53 bin.download-sponsor.de udp
DE 176.9.175.234:443 bin.download-sponsor.de tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 237.175.9.176.in-addr.arpa udp
US 8.8.8.8:53 234.175.9.176.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/4928-8-0x00007FFC4B595000-0x00007FFC4B596000-memory.dmp

memory/4928-9-0x000000001BB80000-0x000000001C04E000-memory.dmp

memory/4928-11-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-10-0x000000001C050000-0x000000001C0F6000-memory.dmp

memory/4928-12-0x000000001C100000-0x000000001C19C000-memory.dmp

memory/4928-13-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-14-0x0000000000F00000-0x0000000000F08000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\OCS\uknydwsnuzsvkvhd.dat

MD5 a249082fed4a9de72bb52195edae91bc
SHA1 08fe1882efd09aed1924041ebc7bb223da5a892b
SHA256 dca925aaa6cf2b55f1497ed9b0a906d54b805cc5667c15a23e0544d8bb9f10a3
SHA512 8e43696c5bf646c4baa35317cf98d6ab3289264e9ece60375df98ada854384eff90e7fa25818c52c71a0be66ac7a760c4671b8625e9e1b148ffc886015bdfb89

memory/4928-16-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-17-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-18-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-19-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-20-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-21-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-22-0x00007FFC4B595000-0x00007FFC4B596000-memory.dmp

memory/4928-23-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp

memory/4928-25-0x00007FFC4B2E0000-0x00007FFC4BC81000-memory.dmp