asyncrat | 3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9c

Analysis

max time kernel
117s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 04:41

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General

Target

3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
Size

74KB
MD5

b8ffca27af2dd7eaf924544d9f4dc080
SHA1

9cb5945789c67912ac20ab478bc0596b10db28a8
SHA256

3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9c
SHA512

a9f3f7bbce8d658c5a6a8489ddb4d694865074f29499ee8856cff3bdd87758761d03466ccd509c24c7f68c14907f70c866ee1bbaad9ed22e51e4d500b8a58a43
SSDEEP

1536:eUYNwcxKHXwzCtmPMV3JSaGLm43XHIls1bP/7jnQzcyLVclN:eUYicxK8WmPMV3wDn4s1bPTbQjBY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

127.0.0.1:9999

Mutex

ytgjjhywchk

Attributes

delay
1
install
true
install_file
RealtekHighDefinitionAudio.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

resource	yara_rule
behavioral2/memory/4820-1-0x0000000000260000-0x0000000000278000-memory.dmp	VenomRAT
behavioral2/files/0x0008000000023cc3-12.dat	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0008000000023cc3-12.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe

Executes dropped EXE 1 IoCs

pid	Process
1800	RealtekHighDefinitionAudio.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
4604	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
4856	schtasks.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

pid	Process
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe
1800	RealtekHighDefinitionAudio.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
Token: SeDebugPrivilege	1800	RealtekHighDefinitionAudio.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1800	RealtekHighDefinitionAudio.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4820 wrote to memory of 3700	4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe	83
PID 4820 wrote to memory of 3700	4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe	83
PID 4820 wrote to memory of 3184	4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe	85
PID 4820 wrote to memory of 3184	4820	3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe	85
PID 3184 wrote to memory of 4604	3184	cmd.exe	87
PID 3184 wrote to memory of 4604	3184	cmd.exe	87
PID 3700 wrote to memory of 4856	3700	cmd.exe	88
PID 3700 wrote to memory of 4856	3700	cmd.exe	88
PID 3184 wrote to memory of 1800	3184	cmd.exe	90
PID 3184 wrote to memory of 1800	3184	cmd.exe	90

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\3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe
"C:\Users\Admin\AppData\Local\Temp\3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9cN.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RealtekHighDefinitionAudio" /tr '"C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3700
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "RealtekHighDefinitionAudio" /tr '"C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4856
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC1E8.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3184
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4604
- - C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe
    "C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC1E8.tmp.bat

Filesize
170B

MD5
c3fc40ff83d191ee0e9d3612fa5e0eeb

SHA1
2f055f80d73fa800dc04dbb4c797887e6231ecf5

SHA256
85f29a630702ef37aa77b049371e4002257f4aaa3f67bdbf3c6ff3efca1c872c

SHA512
e68a39017333efd78f5717ca6ba41b4a0ca734211eacbf3c7be8a8e4448d0a123f56db8916d2227251036631ecb3de2454608da0a90c59005a9e3e40f588dea8

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\RealtekHighDefinitionAudio.exe

Filesize
74KB

MD5
b8ffca27af2dd7eaf924544d9f4dc080

SHA1
9cb5945789c67912ac20ab478bc0596b10db28a8

SHA256
3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9c

SHA512
a9f3f7bbce8d658c5a6a8489ddb4d694865074f29499ee8856cff3bdd87758761d03466ccd509c24c7f68c14907f70c866ee1bbaad9ed22e51e4d500b8a58a43

Download Submit
memory/4820-0-0x00007FF888093000-0x00007FF888095000-memory.dmp

Filesize
8KB

Download
memory/4820-1-0x0000000000260000-0x0000000000278000-memory.dmp

Filesize
96KB

Download
memory/4820-3-0x00007FF888090000-0x00007FF888B51000-memory.dmp

Filesize
10.8MB

Download
memory/4820-8-0x00007FF888090000-0x00007FF888B51000-memory.dmp

Filesize
10.8MB

Download
memory/4820-9-0x00007FF888090000-0x00007FF888B51000-memory.dmp

Filesize
10.8MB

Download