asyncrat | 6c133000db077593d2cd3b0d15d013e0b7e7f8c8b79921fb6440388d812f6193

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

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-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\skwpfwdg = "C:\\Users\\Admin\\AppData\\Roaming\\fat\\dete\\1.0.0.0\\mcsfwservice.exe"	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1020 set thread context of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 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	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2124	RegAsm.exe
2124	RegAsm.exe
2124	RegAsm.exe
2124	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2124	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29
PID 1020 wrote to memory of 2124	1020	84c2b21f5b3c48dfb7481094b8e7f8c2f56e041fe3244b1a608bc264d83536bb.exe	29

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
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1020
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2124

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1020-20-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/1020-1-0x0000000000B90000-0x0000000001754000-memory.dmp

Filesize
11.8MB

Download
memory/1020-2-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/1020-4-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/1020-5-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/1020-6-0x0000000008A80000-0x0000000008E7E000-memory.dmp

Filesize
4.0MB

Download
memory/1020-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2124-7-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2124-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2124-11-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2124-10-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2124-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2124-18-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2124-16-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2124-14-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads