asyncrat | ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0de

General

Target

ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
Size

74KB
MD5

e5ebd0b94853ac7c6d8f2f1e755e6200
SHA1

7723a709bcd5d593b8a26c64995189536e8f4f27
SHA256

ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0de
SHA512

0ab193eed655acee210a0f9992d676508695aa76442e5b6bc9e68301cd9524f878d1832243af8a816311ba8922af284b80b395d0c32ea0825222bcc112c25c23
SSDEEP

1536:NUxQcxI76jCsGPMVee9VdQuDI6H1bf/2DzIQzcCLVclN:NUOcxI7q3GPMVee9VdQsH1bf88QTBY

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

C2

147.185.221.21:64638

Mutex

AADWadsafsjbajiawd=-adfsr

Attributes

delay
1
install
true
install_file
Windows Update.exe
install_folder
%AppData%

aes.plain

Signatures

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

VenomRAT 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/2420-1-0x00000000003A0000-0x00000000003B8000-memory.dmp	VenomRAT
C:\Users\Admin\AppData\Roaming\Windows Update.exe	VenomRAT
behavioral1/memory/2808-18-0x00000000001B0000-0x00000000001C8000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Windows Update.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

Windows Update.exe

pid process

2808 Windows Update.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2344 timeout.exe
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2712 schtasks.exe

pid	process
2808	Windows Update.exe

pid	process
2344	timeout.exe

pid	process
2712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exeWindows Update.exe

pid	process
2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
2808	Windows Update.exe
2808	Windows Update.exe
2808	Windows Update.exe
2808	Windows Update.exe
2808	Windows Update.exe
2808	Windows Update.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exeWindows Update.exe

description	pid	process
Token: SeDebugPrivilege	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
Token: SeDebugPrivilege	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
Token: SeDebugPrivilege	2808	Windows Update.exe
Token: SeDebugPrivilege	2808	Windows Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Windows Update.exe

pid process

2808 Windows Update.exe

pid	process
2808	Windows Update.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.execmd.execmd.exe

description	pid	process	target process
PID 2420 wrote to memory of 2120	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe	cmd.exe
PID 2420 wrote to memory of 2120	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe	cmd.exe
PID 2420 wrote to memory of 2120	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe	cmd.exe
PID 2420 wrote to memory of 1712	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe	cmd.exe
PID 2420 wrote to memory of 1712	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe	cmd.exe
PID 2420 wrote to memory of 1712	2420	ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe	cmd.exe
PID 1712 wrote to memory of 2344	1712	cmd.exe	timeout.exe
PID 1712 wrote to memory of 2344	1712	cmd.exe	timeout.exe
PID 1712 wrote to memory of 2344	1712	cmd.exe	timeout.exe
PID 2120 wrote to memory of 2712	2120	cmd.exe	schtasks.exe
PID 2120 wrote to memory of 2712	2120	cmd.exe	schtasks.exe
PID 2120 wrote to memory of 2712	2120	cmd.exe	schtasks.exe
PID 1712 wrote to memory of 2808	1712	cmd.exe	Windows Update.exe
PID 1712 wrote to memory of 2808	1712	cmd.exe	Windows Update.exe
PID 1712 wrote to memory of 2808	1712	cmd.exe	Windows Update.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
"C:\Users\Admin\AppData\Local\Temp\ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Update" /tr '"C:\Users\Admin\AppData\Roaming\Windows Update.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2120
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Windows Update" /tr '"C:\Users\Admin\AppData\Roaming\Windows Update.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2712
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpAB2D.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2344
- - C:\Users\Admin\AppData\Roaming\Windows Update.exe
    "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAB2D.tmp.bat

Filesize
158B

MD5
3eb24ffc0ca484288c0bed841e738df2

SHA1
25d83cc80dd763668607b98b502acd499c23efd0

SHA256
603bd5a4225dd66eecf694ab4fd096e271f694dfbe8429273bf52bda1916838c

SHA512
93b4e010556e3bbe94cee45c48fdf4c152f4b514561816afe815b54a307ba2506c0b44bed5cb8931a6c1f5381014fbc457b729cd57c3dabaa34155cf4f12be46

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Update.exe

Filesize
74KB

MD5
e5ebd0b94853ac7c6d8f2f1e755e6200

SHA1
7723a709bcd5d593b8a26c64995189536e8f4f27

SHA256
ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0de

SHA512
0ab193eed655acee210a0f9992d676508695aa76442e5b6bc9e68301cd9524f878d1832243af8a816311ba8922af284b80b395d0c32ea0825222bcc112c25c23

Download Submit
memory/2420-0-0x000007FEF5283000-0x000007FEF5284000-memory.dmp

Filesize
4KB

Download
memory/2420-1-0x00000000003A0000-0x00000000003B8000-memory.dmp

Filesize
96KB

Download
memory/2420-3-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2420-11-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2420-14-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2808-18-0x00000000001B0000-0x00000000001C8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads