asyncrat | 0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e

General

Target

0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe
Size

74KB
MD5

3ef6a6f8a984c661f58c373081986213
SHA1

13f18179a85ae650bcfa70b47d027b0b3fe84d6e
SHA256

0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e
SHA512

e7c6bc2b7e4d5d252b4b05628cab64007e5c0cec15657ee533ec78c7cd4546afb27df7b5b6be82b5d8bda085b93463dadaae41b74ccd6061b0ee7b2f68de27df
SSDEEP

1536:SUdccxlfNC86PMVme9VdQuDI6H1bf/g+4oQzcq7VclN:SUecxlFT6PMVme9VdQsH1bf4ZoQ7xY

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

fwlmnhzadxk

Attributes

delay
1
install
true
install_file
%AppData%.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/w5QC7zcd

aes.plain

Signatures

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

VenomRAT 1 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/560-1-0x0000000000270000-0x0000000000288000-memory.dmp	VenomRAT

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 5 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

Processes:

schtasks.exetimeout.exe0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2764 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

2896 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe

pid process

560 0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe

description pid process

Token: SeDebugPrivilege 560 0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe

pid	process
2764	timeout.exe

pid	process
2896	schtasks.exe

pid	process
560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe

description	pid	process
Token: SeDebugPrivilege	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.execmd.execmd.exe

description	pid	process	target process
PID 560 wrote to memory of 2588	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 560 wrote to memory of 2588	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 560 wrote to memory of 2588	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 560 wrote to memory of 2588	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 560 wrote to memory of 2848	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 560 wrote to memory of 2848	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 560 wrote to memory of 2848	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 560 wrote to memory of 2848	560	0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe	cmd.exe
PID 2588 wrote to memory of 2896	2588	cmd.exe	schtasks.exe
PID 2588 wrote to memory of 2896	2588	cmd.exe	schtasks.exe
PID 2588 wrote to memory of 2896	2588	cmd.exe	schtasks.exe
PID 2588 wrote to memory of 2896	2588	cmd.exe	schtasks.exe
PID 2848 wrote to memory of 2764	2848	cmd.exe	timeout.exe
PID 2848 wrote to memory of 2764	2848	cmd.exe	timeout.exe
PID 2848 wrote to memory of 2764	2848	cmd.exe	timeout.exe
PID 2848 wrote to memory of 2764	2848	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe
"C:\Users\Admin\AppData\Local\Temp\0b657c945d9ebee7f0b8a48be6f1abf4b9dbf2c0c609fc8030818a2229dd175e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "%AppData%" /tr '"C:\Users\Admin\AppData\Roaming\%AppData%.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "C:\Users\Admin\AppData\Roaming" /tr '"C:\Users\Admin\AppData\Roaming\C:\Users\Admin\AppData\Roaming.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2896
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp39C6.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2764

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

System Information Discovery

1

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\tmp39C6.tmp.bat

Filesize
153B

MD5
11ac20b7189fc4aac94e7dd242b2fae3

SHA1
0d3e7a88c90e7e27915d9a18ab3ea9b3f959903e

SHA256
33fee96168f74e738e29ea8d650fbcfad83d724bd97d07f9336bd839e19fe94f

SHA512
e87f2644089dd5170472a767c2d7b2b9ca7ea714f99c6ec217e8bfaaabfb447ed3d7995f90f69b46f048caaf7854d7866c31baf800b7210e2a875fe39a01c9c9

Download Submit
memory/560-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/560-1-0x0000000000270000-0x0000000000288000-memory.dmp

Filesize
96KB

Download
memory/560-3-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/560-11-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/560-14-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads