asyncrat | bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bd

Analysis

max time kernel
120s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 12:20

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General

Target

bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
Size

74KB
MD5

77871f58327c843333d20cbde8f414e0
SHA1

1ae10e9b9d9305cfd939cd2c71afcb7aadc46536
SHA256

bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bd
SHA512

aaca63540270d02242743bec639bb6f2add9cd1e664648bb69a2745293bf89df6a49f0241649d568b00f5efb3cacdaec38beab788d12e21d2004b3a906f59df8
SSDEEP

1536:8UaAcx2l/Cx2PMVie9VdQuDI6H1bf/HSpQzcMGVclN:8UDcx2Bq2PMVie9VdQsH1bf6pQtcY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

127.0.0.1:4449

18.231.223.127:4449

Mutex

ytlgxccuen

Attributes

delay
1
install
true
install_file
expl0rer.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/4904-1-0x00000000008D0000-0x00000000008E8000-memory.dmp	VenomRAT
behavioral2/files/0x000a000000023b75-12.dat	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000a000000023b75-12.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe

Executes dropped EXE 1 IoCs

pid	Process
3284	expl0rer.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
1424	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
4912	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe
3284	expl0rer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
Token: SeDebugPrivilege	3284	expl0rer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3284	expl0rer.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 3052	4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe	83
PID 4904 wrote to memory of 3052	4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe	83
PID 4904 wrote to memory of 1996	4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe	85
PID 4904 wrote to memory of 1996	4904	bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe	85
PID 1996 wrote to memory of 1424	1996	cmd.exe	87
PID 1996 wrote to memory of 1424	1996	cmd.exe	87
PID 3052 wrote to memory of 4912	3052	cmd.exe	88
PID 3052 wrote to memory of 4912	3052	cmd.exe	88
PID 1996 wrote to memory of 3284	1996	cmd.exe	89
PID 1996 wrote to memory of 3284	1996	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\bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe
"C:\Users\Admin\AppData\Local\Temp\bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bdN.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "expl0rer" /tr '"C:\Users\Admin\AppData\Roaming\expl0rer.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "expl0rer" /tr '"C:\Users\Admin\AppData\Roaming\expl0rer.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4912
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp77DF.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1424
- - C:\Users\Admin\AppData\Roaming\expl0rer.exe
    "C:\Users\Admin\AppData\Roaming\expl0rer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3284

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\tmp77DF.tmp.bat

Filesize
152B

MD5
4ee75e247d972095f16ee063963ba1da

SHA1
9dfdb3dc9fee58d0c237090486703374fb062104

SHA256
a0e720f861594e40ec6ff28d465cb4fcefc70f3639710105240f9b3cda5801ad

SHA512
6ed7577970663a05531e322f13e879446e663041a0bbc30f134a10b64c03cd512f44ec88ac06df006149d99f6d7f72eddd65fc0acc4dfc1b7eed79a24442c79b

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\expl0rer.exe

Filesize
74KB

MD5
77871f58327c843333d20cbde8f414e0

SHA1
1ae10e9b9d9305cfd939cd2c71afcb7aadc46536

SHA256
bd337aa3192a729d7d17725c0b62f215d27e4fbbfe549cd0331471f810faa0bd

SHA512
aaca63540270d02242743bec639bb6f2add9cd1e664648bb69a2745293bf89df6a49f0241649d568b00f5efb3cacdaec38beab788d12e21d2004b3a906f59df8

Download Submit
memory/4904-0-0x00007FFC61BE3000-0x00007FFC61BE5000-memory.dmp

Filesize
8KB

Download
memory/4904-1-0x00000000008D0000-0x00000000008E8000-memory.dmp

Filesize
96KB

Download
memory/4904-3-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp

Filesize
10.8MB

Download
memory/4904-8-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp

Filesize
10.8MB

Download
memory/4904-9-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp

Filesize
10.8MB

Download