asyncrat | c6cb794e8febc4b598d491fe2c94e59cf45dfbc4ca97b03aded9277c918e3a9b

General

Target

Client.exe
Size

63KB
MD5

7aabeebd130a48ceb6d29db6338d46d5
SHA1

c72371a7cf6c472252b1d3f7c6e12d3de77e145c
SHA256

c6cb794e8febc4b598d491fe2c94e59cf45dfbc4ca97b03aded9277c918e3a9b
SHA512

d9bb873fa1768453d3fb3a1f9bbaf2b76a0b21717f86da24ed028876a4d470d014e443aaab24072487413a362d46e78ff52fac6dd8a923d2ec1efcb84016cfc7
SSDEEP

1536:4ZuttUdjLAQJaeeiIVrGbbXwUhktGiDpqKmY7:4ZuttUdjvJjeXGbbX7+9gz

Score

10^/10

asyncrat venom clients rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

following-geometry.gl.at.ply.gg:11493

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes

delay
1
install
true
install_file
setup.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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x000a00000001202c-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
536	setup.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

pid	Process
2092	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

pid	Process
484	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1304	Client.exe
1304	Client.exe
1304	Client.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1304	Client.exe
Token: SeDebugPrivilege	536	setup.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 2760	1304	Client.exe	30
PID 1304 wrote to memory of 2760	1304	Client.exe	30
PID 1304 wrote to memory of 2760	1304	Client.exe	30
PID 1304 wrote to memory of 2264	1304	Client.exe	32
PID 1304 wrote to memory of 2264	1304	Client.exe	32
PID 1304 wrote to memory of 2264	1304	Client.exe	32
PID 2760 wrote to memory of 484	2760	cmd.exe	33
PID 2760 wrote to memory of 484	2760	cmd.exe	33
PID 2760 wrote to memory of 484	2760	cmd.exe	33
PID 2264 wrote to memory of 2092	2264	cmd.exe	35
PID 2264 wrote to memory of 2092	2264	cmd.exe	35
PID 2264 wrote to memory of 2092	2264	cmd.exe	35
PID 2264 wrote to memory of 536	2264	cmd.exe	36
PID 2264 wrote to memory of 536	2264	cmd.exe	36
PID 2264 wrote to memory of 536	2264	cmd.exe	36

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\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "setup" /tr '"C:\Users\Admin\AppData\Roaming\setup.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "setup" /tr '"C:\Users\Admin\AppData\Roaming\setup.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:484
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB895.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2092
- - C:\Users\Admin\AppData\Roaming\setup.exe
    "C:\Users\Admin\AppData\Roaming\setup.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:536

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\tmpB895.tmp.bat

Filesize
149B

MD5
e4732b5b698c5afc5425b2e9d923c503

SHA1
6c39cf8211c787256fadf9bcacde303b49f1184f

SHA256
9f10c0cfca1bc1af0bd5b1c26686751f25d1afd24cc0ed8a265864c3b983b6d0

SHA512
f8ad376264881f886069a9da6e7a7175412a5542969e4606f3454dfbd5fbdac5014a61cf8bbb804c2890b3baf57d3405a40c7f590b9c9473da01a4927d508195

Download Submit
C:\Users\Admin\AppData\Roaming\setup.exe

Filesize
63KB

MD5
7aabeebd130a48ceb6d29db6338d46d5

SHA1
c72371a7cf6c472252b1d3f7c6e12d3de77e145c

SHA256
c6cb794e8febc4b598d491fe2c94e59cf45dfbc4ca97b03aded9277c918e3a9b

SHA512
d9bb873fa1768453d3fb3a1f9bbaf2b76a0b21717f86da24ed028876a4d470d014e443aaab24072487413a362d46e78ff52fac6dd8a923d2ec1efcb84016cfc7

Download Submit
memory/536-16-0x0000000001320000-0x0000000001336000-memory.dmp

Filesize
88KB

Download
memory/1304-0-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

Filesize
4KB

Download
memory/1304-1-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/1304-2-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/1304-3-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/1304-12-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads