asyncrat | 0e98e910ed50618f8ad181e371c197d6342215753b7938d75358a1351423f1e3

General

Target

Image-logger1.exe
Size

74KB
MD5

269dcdc4f147e62cec52eb56cbac81c5
SHA1

5d53e087a271ee7fc9b308332ba14ef0d4e1df11
SHA256

0e98e910ed50618f8ad181e371c197d6342215753b7938d75358a1351423f1e3
SHA512

471b829779ea601830d95044f66e7103d785fefacadfafda4e721f103da69d929c6dae3e10e795bf896edd08c4122a3b45a565ea9a8433d72b3c4e6640dd1570
SSDEEP

1536:fUqUcxgAkC4fsiPMVw6edjOXqIgH1bq/fkDbUpQzceLVclN:fUTcxgTEiPMVw6edjOkH1bq34gpQ3BY

Score

10^/10

asyncrat venomrat windows rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Windows

C2

147.185.221.19:29253

Mutex

doxtiisforiqxq

Attributes

delay
1
install
true
install_file
ProgramFile.exe
install_folder
%AppData%

aes.plain

Signatures

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

VenomRAT 2 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral2/memory/2236-1-0x00000000006A0000-0x00000000006B8000-memory.dmp	VenomRAT
behavioral2/files/0x0009000000023bc8-12.dat	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/files/0x0009000000023bc8-12.dat	family_asyncrat

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

Processes:

Image-logger1.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Image-logger1.exe

Executes dropped EXE 1 IoCs

Processes:

ProgramFile.exe

pid	Process
440	ProgramFile.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
780	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
1532	schtasks.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

Image-logger1.exeProgramFile.exe

pid	Process
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
2236	Image-logger1.exe
440	ProgramFile.exe
440	ProgramFile.exe
440	ProgramFile.exe
440	ProgramFile.exe
440	ProgramFile.exe
440	ProgramFile.exe
440	ProgramFile.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Image-logger1.exeProgramFile.exe

description	pid	Process
Token: SeDebugPrivilege	2236	Image-logger1.exe
Token: SeDebugPrivilege	2236	Image-logger1.exe
Token: SeDebugPrivilege	440	ProgramFile.exe
Token: SeDebugPrivilege	440	ProgramFile.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ProgramFile.exe

pid	Process
440	ProgramFile.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Image-logger1.execmd.execmd.exe

description	pid	Process	procid_target
PID 2236 wrote to memory of 4020	2236	Image-logger1.exe	83
PID 2236 wrote to memory of 4020	2236	Image-logger1.exe	83
PID 2236 wrote to memory of 396	2236	Image-logger1.exe	84
PID 2236 wrote to memory of 396	2236	Image-logger1.exe	84
PID 396 wrote to memory of 780	396	cmd.exe	87
PID 396 wrote to memory of 780	396	cmd.exe	87
PID 4020 wrote to memory of 1532	4020	cmd.exe	88
PID 4020 wrote to memory of 1532	4020	cmd.exe	88
PID 396 wrote to memory of 440	396	cmd.exe	89
PID 396 wrote to memory of 440	396	cmd.exe	89

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\Image-logger1.exe
"C:\Users\Admin\AppData\Local\Temp\Image-logger1.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ProgramFile" /tr '"C:\Users\Admin\AppData\Roaming\ProgramFile.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4020
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "ProgramFile" /tr '"C:\Users\Admin\AppData\Roaming\ProgramFile.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1532
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA018.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:396
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:780
- - C:\Users\Admin\AppData\Roaming\ProgramFile.exe
    "C:\Users\Admin\AppData\Roaming\ProgramFile.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:440

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA018.tmp.bat

Filesize
155B

MD5
2ff89c3c6fd72abc3e187d6eecefa9c3

SHA1
ca4b894e0b3c8b9d3df67dd0ff66da0797f0dc86

SHA256
30af08561af89a42844a6f62fb145204dda7b654d18bf30e3dbdbd06f0f635aa

SHA512
150e44b189ade8b51b32974f3e7221de53e1253df0bd06cf53803b4c206616fd995f8893be3a86b0d4e25e84872e6f5ce90629a02257b7a8b6ab46e57bc3d5ad

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\ProgramFile.exe

Filesize
74KB

MD5
269dcdc4f147e62cec52eb56cbac81c5

SHA1
5d53e087a271ee7fc9b308332ba14ef0d4e1df11

SHA256
0e98e910ed50618f8ad181e371c197d6342215753b7938d75358a1351423f1e3

SHA512
471b829779ea601830d95044f66e7103d785fefacadfafda4e721f103da69d929c6dae3e10e795bf896edd08c4122a3b45a565ea9a8433d72b3c4e6640dd1570

Download Submit
memory/2236-0-0x00007FF9094B3000-0x00007FF9094B5000-memory.dmp

Filesize
8KB

Download
memory/2236-1-0x00000000006A0000-0x00000000006B8000-memory.dmp

Filesize
96KB

Download
memory/2236-3-0x00007FF9094B0000-0x00007FF909F71000-memory.dmp

Filesize
10.8MB

Download
memory/2236-8-0x00007FF9094B0000-0x00007FF909F71000-memory.dmp

Filesize
10.8MB

Download
memory/2236-9-0x00007FF9094B0000-0x00007FF909F71000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads