asyncrat | 3e8a98ded7fab1daa8a07a2a035f28a2e4f3404f79d59285ac6f11180d1211d4

General

Target

PantiBootStrapper.exe
Size

74KB
MD5

843f9a8b2e3284b06d2d343cbcf5a884
SHA1

da31933428722d65568ead0f7b20b72ba423680e
SHA256

3e8a98ded7fab1daa8a07a2a035f28a2e4f3404f79d59285ac6f11180d1211d4
SHA512

4b2751733006050154d7ff9bb77d70cbf39705041ca5a3c53b752b06f7a9ef197575a93ef3d4ba21fd853c598add7591c7f8b8176d43eb444900668f56f6b694
SSDEEP

1536:JUKkcx9pXCTyPMVvWC+I4H1bF/5RAMQzc6LVclN:JUDcx958yPMVvWCwH1bFfQrBY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

195.88.218.126:2404

Mutex

mojnuowhevbf

Attributes

delay
1
install
true
install_file
svchost.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 3 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral1/memory/2760-1-0x00000000009C0000-0x00000000009D8000-memory.dmp	VenomRAT
behavioral1/files/0x0032000000015d33-16.dat	VenomRAT
behavioral1/memory/2620-18-0x00000000003D0000-0x00000000003E8000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0032000000015d33-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2620	svchost.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

defense_evasion

pid	Process
2724	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
2748	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2760	PantiBootStrapper.exe
2760	PantiBootStrapper.exe
2760	PantiBootStrapper.exe
2620	svchost.exe
2620	svchost.exe
2620	svchost.exe
2620	svchost.exe
2620	svchost.exe
2620	svchost.exe
2620	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	PantiBootStrapper.exe
Token: SeDebugPrivilege	2620	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2620	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 2736	2760	PantiBootStrapper.exe	30
PID 2760 wrote to memory of 2736	2760	PantiBootStrapper.exe	30
PID 2760 wrote to memory of 2736	2760	PantiBootStrapper.exe	30
PID 2760 wrote to memory of 2728	2760	PantiBootStrapper.exe	31
PID 2760 wrote to memory of 2728	2760	PantiBootStrapper.exe	31
PID 2760 wrote to memory of 2728	2760	PantiBootStrapper.exe	31
PID 2736 wrote to memory of 2748	2736	cmd.exe	34
PID 2736 wrote to memory of 2748	2736	cmd.exe	34
PID 2736 wrote to memory of 2748	2736	cmd.exe	34
PID 2728 wrote to memory of 2724	2728	cmd.exe	35
PID 2728 wrote to memory of 2724	2728	cmd.exe	35
PID 2728 wrote to memory of 2724	2728	cmd.exe	35
PID 2728 wrote to memory of 2620	2728	cmd.exe	36
PID 2728 wrote to memory of 2620	2728	cmd.exe	36
PID 2728 wrote to memory of 2620	2728	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\PantiBootStrapper.exe
"C:\Users\Admin\AppData\Local\Temp\PantiBootStrapper.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2748
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp4D84.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2724
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2620

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\tmp4D84.tmp.bat

Filesize
151B

MD5
5f9dc4863378722b7b68fc3a123f29ee

SHA1
ca795208d705e2ad755c366151b5c87816b63d57

SHA256
747f03d87fe82b04737283cb1d6dd8dfab3db506c3a7231e2ccad90a99f22e22

SHA512
8da072da1b35aa424d73bb7ddb3b53aca614347862fa1bf023aa4bd66c60a24adeabcfd8e5545648f3a65e929dbd3fbfb70dc871a16aead2503a6ec96a83dcaf

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\svchost.exe

Filesize
74KB

MD5
843f9a8b2e3284b06d2d343cbcf5a884

SHA1
da31933428722d65568ead0f7b20b72ba423680e

SHA256
3e8a98ded7fab1daa8a07a2a035f28a2e4f3404f79d59285ac6f11180d1211d4

SHA512
4b2751733006050154d7ff9bb77d70cbf39705041ca5a3c53b752b06f7a9ef197575a93ef3d4ba21fd853c598add7591c7f8b8176d43eb444900668f56f6b694

Download Submit
memory/2620-18-0x00000000003D0000-0x00000000003E8000-memory.dmp

Filesize
96KB

Download
memory/2760-0-0x000007FEF6783000-0x000007FEF6784000-memory.dmp

Filesize
4KB

Download
memory/2760-1-0x00000000009C0000-0x00000000009D8000-memory.dmp

Filesize
96KB

Download
memory/2760-3-0x000007FEF6780000-0x000007FEF716C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-11-0x000007FEF6780000-0x000007FEF716C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-13-0x000007FEF6780000-0x000007FEF716C000-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