Malware Analysis Report

2025-04-14 05:12

Sample ID 250104-jfrwys1qdr
Target JaffaCakes118_7877862a3937db72f9b21e841ec521b0
SHA256 a8a5aa4bec07a4661c9be5d8c13b6d8c5a40c309f9b4875bf9d11125cc537f7b
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

a8a5aa4bec07a4661c9be5d8c13b6d8c5a40c309f9b4875bf9d11125cc537f7b

Threat Level: Known bad

The file JaffaCakes118_7877862a3937db72f9b21e841ec521b0 was found to be: Known bad.

Malicious Activity Summary

revengerat discovery stealer trojan

RevengeRAT

Revengerat family

RevengeRat Executable

Executes dropped EXE

Loads dropped DLL

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-04 07:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-04 07:36

Reported

2025-01-04 07:39

Platform

win7-20240903-en

Max time kernel

122s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.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\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.exe"

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

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54376725 -chipde -70877aad95ae4862b0c5745de5a9e233 - -BLUB1 -tdpwsbtyfsjodzwk -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/2732-12-0x000007FEF5A9E000-0x000007FEF5A9F000-memory.dmp

memory/2732-13-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

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

MD5 16963e0627ce721d970cb116cb139d12
SHA1 c5e4ed07d6ee0e3b2423a66116428f46fd9f8362
SHA256 145531cc960e4e14386473b55f43859cd40a1259715cbaa2eb2634f7aab940c1
SHA512 043074f7a7bfb6d88aba23380c6e22135667536578f7ed3e29724d08780f13ec9144a3b41dab6e6d8687f8e5fdd7daecf7c2172eb28b7f918aa9216195b2ba08

memory/2732-15-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

memory/2732-16-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

memory/2732-17-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

memory/2732-18-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

memory/2732-19-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

memory/2732-20-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

memory/2732-21-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

memory/2732-22-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-04 07:36

Reported

2025-01-04 07:39

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.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\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.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\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7877862a3937db72f9b21e841ec521b0.exe"

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

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54376725 -chipde -70877aad95ae4862b0c5745de5a9e233 - -BLUB1 -noczoypupwehoqxc -327826

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 8.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.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
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
DE 176.9.175.234:443 bin.download-sponsor.de tcp
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 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.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 14.227.111.52.in-addr.arpa udp

Files

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

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/1908-8-0x00007FFFFEAC5000-0x00007FFFFEAC6000-memory.dmp

memory/1908-10-0x000000001B8B0000-0x000000001BD7E000-memory.dmp

memory/1908-9-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-11-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-12-0x000000001BE30000-0x000000001BED6000-memory.dmp

memory/1908-13-0x000000001BF80000-0x000000001C01C000-memory.dmp

memory/1908-14-0x0000000000FE0000-0x0000000000FE8000-memory.dmp

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

MD5 16963e0627ce721d970cb116cb139d12
SHA1 c5e4ed07d6ee0e3b2423a66116428f46fd9f8362
SHA256 145531cc960e4e14386473b55f43859cd40a1259715cbaa2eb2634f7aab940c1
SHA512 043074f7a7bfb6d88aba23380c6e22135667536578f7ed3e29724d08780f13ec9144a3b41dab6e6d8687f8e5fdd7daecf7c2172eb28b7f918aa9216195b2ba08

memory/1908-16-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-17-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-18-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-19-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-20-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-21-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-22-0x00007FFFFEAC5000-0x00007FFFFEAC6000-memory.dmp

memory/1908-23-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-24-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp

memory/1908-26-0x00007FFFFE810000-0x00007FFFFF1B1000-memory.dmp