asyncrat | 84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb

General

Target

84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe
Size

11.7MB
MD5

4cbf5db190e95e44d2a637e3513cb39f
SHA1

0f83db9b94d8d3975116732282364ee7aa8d142f
SHA256

84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb
SHA512

a4d0fb58ceabe86f7f3ce81624d7ab60fcde15bed4b928eaf03ed431230052b814d0a483b67ca42afa5dbb0fd9bb02043a6c52db4b980b6fde7d0357d5773193
SSDEEP

196608:0vcp1Se3LVaChCXpogOPA53p79DMG/TiOyg:13h/g/OE3p5Dxby

Score

10^/10

asyncrat default discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.2

Botnet

Default

C2

94.156.69.161:8900

94.156.69.161:4443

94.156.69.163:8900

94.156.69.163:4443

94.156.69.164:8900

94.156.69.164:4443

94.156.69.165:8900

94.156.69.165:4443

94.156.69.166:8900

94.156.69.166:4443

91.92.248.82:8900

91.92.248.82:4443

91.92.251.136:8900

91.92.251.136:4443

91.92.251.153:8900

91.92.251.153:4443

91.92.251.159:8900

91.92.251.159:4443

91.92.251.179:8900

91.92.251.179:4443

Mutex

sqhylkrhlwjrecxiv

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Detects executables attemping to enumerate video devices using WMI 1 IoCs

resource	yara_rule
behavioral2/memory/4936-9-0x0000000000400000-0x0000000000418000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\skwpfwdg = "C:\\Users\\Admin\\AppData\\Roaming\\fat\\dete\\1.0.0.0\\mcsfwservice.exe"	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1148 set thread context of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe
1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe
4936	RegAsm.exe
4936	RegAsm.exe
4936	RegAsm.exe
4936	RegAsm.exe
4936	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe
Token: SeDebugPrivilege	4936	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4936	RegAsm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 2504	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	96
PID 1148 wrote to memory of 2504	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	96
PID 1148 wrote to memory of 2504	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	96
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97
PID 1148 wrote to memory of 4936	1148	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	97

C:\Users\Admin\AppData\Local\Temp\84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe
"C:\Users\Admin\AppData\Local\Temp\84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2504
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1148-14-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/1148-1-0x0000000000110000-0x0000000000CD4000-memory.dmp

Filesize
11.8MB

Download
memory/1148-2-0x0000000005D20000-0x00000000062C4000-memory.dmp

Filesize
5.6MB

Download
memory/1148-3-0x0000000005640000-0x00000000056D2000-memory.dmp

Filesize
584KB

Download
memory/1148-4-0x00000000055D0000-0x00000000055DA000-memory.dmp

Filesize
40KB

Download
memory/1148-5-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/1148-6-0x0000000006A60000-0x0000000006BE6000-memory.dmp

Filesize
1.5MB

Download
memory/1148-8-0x00000000080A0000-0x000000000849E000-memory.dmp

Filesize
4.0MB

Download
memory/1148-0-0x000000007492E000-0x000000007492F000-memory.dmp

Filesize
4KB

Download
memory/4936-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4936-13-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/4936-11-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/4936-15-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/4936-16-0x0000000005F50000-0x0000000005FEC000-memory.dmp

Filesize
624KB

Download
memory/4936-17-0x0000000005FF0000-0x0000000006056000-memory.dmp

Filesize
408KB

Download
memory/4936-18-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/4936-20-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads