Malware Analysis Report

2025-04-14 05:11

Sample ID 250108-haz5psxrf1
Target 8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.exe
SHA256 8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801
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

8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801

Threat Level: Known bad

The file 8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.exe was found to be: Known bad.

Malicious Activity Summary

revengerat discovery stealer trojan

RevengeRAT

Revengerat family

RevengeRat Executable

Loads dropped DLL

Executes dropped EXE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-08 06:32

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-08 06:32

Reported

2025-01-08 06:34

Platform

win7-20240903-en

Max time kernel

110s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.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\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.exe

"C:\Users\Admin\AppData\Local\Temp\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.exe"

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

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54397392 -chipde -e58599e2a8df48c3aba64a1f1aab835f - -ChromeBundle -xesondtyzbqthabw -393500

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

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

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/2832-12-0x000007FEF65EE000-0x000007FEF65EF000-memory.dmp

memory/2832-13-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

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

MD5 c6e0ebf26d0f1e4dec2840bd80b1083b
SHA1 4b86a0ea0fa3fecc695e89e27d3c37cc721a74ee
SHA256 4f88632ace9cfa3b013b01290d9e7d1544e92d832ba8f0ce02c51813f8e665da
SHA512 fc0fa53da21f94fdecfa7bbd40d8c7279a3449c0779b4c35a5ffb13d7d02042d4248fbf946f9eb4c34d21217bf50d8a573091627f78f75248533a825d80d8253

memory/2832-15-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

memory/2832-16-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

memory/2832-17-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

memory/2832-18-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

memory/2832-19-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

memory/2832-20-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

memory/2832-21-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

memory/2832-22-0x000007FEF6330000-0x000007FEF6CCD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-08 06:32

Reported

2025-01-08 06:34

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.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\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.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\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.exe

"C:\Users\Admin\AppData\Local\Temp\8b5d2c8f5e8c7b68c7517edcdddc3cee55f1bbf66a56676f15117ef6c03e9801.exe"

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

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54397392 -chipde -e58599e2a8df48c3aba64a1f1aab835f - -ChromeBundle -ldkaondhkfqjajmc -1114180

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.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 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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 86.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

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

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/4956-8-0x00007FFD35F95000-0x00007FFD35F96000-memory.dmp

memory/4956-10-0x000000001BC40000-0x000000001C10E000-memory.dmp

memory/4956-9-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-11-0x000000001B6B0000-0x000000001B756000-memory.dmp

memory/4956-12-0x000000001C1E0000-0x000000001C27C000-memory.dmp

memory/4956-13-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-14-0x0000000001200000-0x0000000001208000-memory.dmp

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

MD5 c6e0ebf26d0f1e4dec2840bd80b1083b
SHA1 4b86a0ea0fa3fecc695e89e27d3c37cc721a74ee
SHA256 4f88632ace9cfa3b013b01290d9e7d1544e92d832ba8f0ce02c51813f8e665da
SHA512 fc0fa53da21f94fdecfa7bbd40d8c7279a3449c0779b4c35a5ffb13d7d02042d4248fbf946f9eb4c34d21217bf50d8a573091627f78f75248533a825d80d8253

memory/4956-16-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-17-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-18-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-19-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-20-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-21-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-22-0x00007FFD35F95000-0x00007FFD35F96000-memory.dmp

memory/4956-23-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp

memory/4956-25-0x00007FFD35CE0000-0x00007FFD36681000-memory.dmp