revengerat | fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e

General

Target
fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe
Size 17KB
Sample220520-enlyfsbhap
SHA256 fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e
MD5 4a1e9090a6a6bc9dda8706d35e5ef027
SHA1 8f8a66cb388f0ed59c46c3bc23c95c6724b8c2be
SHA512 961e334b79d36a781f732f6e4116d84b99d7fb2063e94bd901d42a092d664141e59ff4d7cade49d848ee16cd5be8bba3e849c9a12b8c24469e5a7aa264cfd33a
MD5 SHA1 SHA512

Score

10^/10

revengerat guest stealer trojan

Malware Config

Extracted

Family

revengerat

Botnet

Guest

C2

0.tcp.ngrok.io:17455

Mutex

RV_MUTEX-iYAoBLOacwYd

Signatures

RevengeRAT
Remote-access trojan with a wide range of capabilities.
trojan revengerat

RevengeRat Executable 2 IoCs

stealer

resource	yara_rule
behavioral2/files/0x0006000000022ec2-132.dat	revengerat
behavioral2/files/0x0006000000022ec2-133.dat	revengerat

Executes dropped EXE 1 IoCs

pid	Process
4760	Client.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0	Client.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Client.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0	fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1736	powershell.exe
1736	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe
Token: SeDebugPrivilege	4760	Client.exe
Token: SeDebugPrivilege	1736	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 4760	2496	fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe	86
PID 2496 wrote to memory of 4760	2496	fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe	86
PID 4760 wrote to memory of 1736	4760	Client.exe	87
PID 4760 wrote to memory of 1736	4760	Client.exe	87

C:\Users\Admin\AppData\Local\Temp\fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe
"C:\Users\Admin\AppData\Local\Temp\fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e.exe"
1⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\Documents\Client.exe
  "C:\Users\Admin\Documents\Client.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4760
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -ExecutionPolicy Bypass -Command [System.Reflection.Assembly]::LoadWithPartialName('System.Windows.Forms'); [System.Windows.Forms.MessageBox]::Show('congradulations you got fuckin hacked','HAHA')
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Client.exe

Path C:\Users\Admin\Documents\Client.exe
Size 17KB
SHA256 fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e
MD5 4a1e9090a6a6bc9dda8706d35e5ef027
SHA1 8f8a66cb388f0ed59c46c3bc23c95c6724b8c2be
SHA512 961e334b79d36a781f732f6e4116d84b99d7fb2063e94bd901d42a092d664141e59ff4d7cade49d848ee16cd5be8bba3e849c9a12b8c24469e5a7aa264cfd33a
SSDEEP 192:pQ61GFr2aDBBT02FLYnAdfYMaqsCrXbr+jF9nsVVIuwgXyKv0+2ctH:d18DBZBFJZeCrXbQsVKcyKc+2ctH
MD5 SHA1 SHA512 SSDEEP

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Client.exe

Path C:\Users\Admin\Documents\Client.exe
Size 17KB
SHA256 fd9f4bc99e7a969551c859d3da5dfd6c4151a20c9663619a4b14be7958c34e0e
MD5 4a1e9090a6a6bc9dda8706d35e5ef027
SHA1 8f8a66cb388f0ed59c46c3bc23c95c6724b8c2be
SHA512 961e334b79d36a781f732f6e4116d84b99d7fb2063e94bd901d42a092d664141e59ff4d7cade49d848ee16cd5be8bba3e849c9a12b8c24469e5a7aa264cfd33a
SSDEEP 192:pQ61GFr2aDBBT02FLYnAdfYMaqsCrXbr+jF9nsVVIuwgXyKv0+2ctH:d18DBZBFJZeCrXbQsVKcyKc+2ctH
MD5 SHA1 SHA512 SSDEEP

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memory/1736-136-0x000002CEA6710000-0x000002CEA6732000-memory.dmp

Download

memory/1736-137-0x000002CE8CD30000-0x000002CE8D7F1000-memory.dmp

Download

memory/2496-130-0x00007FFD44AB0000-0x00007FFD454E6000-memory.dmp

Download

memory/4760-134-0x00007FFD44AB0000-0x00007FFD454E6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads