asyncrat | 8c54a5688aec016bd13c68a755c96de2029630e41d76bce15421dac86a6c256a

General

Target

Audio.exe
Size

74KB
MD5

c7795a63dfcc82fa556e31ed6867a716
SHA1

2efc2f8651dccbd08540dea01426d2572f4c4420
SHA256

8c54a5688aec016bd13c68a755c96de2029630e41d76bce15421dac86a6c256a
SHA512

14f40813e77225006dd3a97fd8984a47065ec72725fdcab7353c39cf12a06e18432c610c9b00258862b04c7c61ac72de6676caa0fd9fa684b853592285af7622
SSDEEP

1536:aUKkcx9pXCTyPMV2Ydj/yLEgItH1ba/0SLiQzcKLVclN:aUDcx958yPMVN/nTH1basSuQ7BY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

147.185.221.225:54312

Mutex

qgmwiwgcbk

Attributes

delay
1
install
true
install_file
Beaming.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

Processes:

resource	yara_rule
behavioral2/memory/1208-1-0x00000000000A0000-0x00000000000B8000-memory.dmp	VenomRAT
behavioral2/files/0x000c000000023b61-12.dat	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/files/0x000c000000023b61-12.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

Processes:

Audio.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	Audio.exe

Executes dropped EXE 1 IoCs

Processes:

Beaming.exe

pid	Process
3604	Beaming.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

Processes:

timeout.exe

pid	Process
2204	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
4960	schtasks.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

Audio.exeBeaming.exe

pid	Process
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
1208	Audio.exe
3604	Beaming.exe
3604	Beaming.exe
3604	Beaming.exe
3604	Beaming.exe
3604	Beaming.exe
3604	Beaming.exe
3604	Beaming.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Audio.exeBeaming.exe

description	pid	Process
Token: SeDebugPrivilege	1208	Audio.exe
Token: SeDebugPrivilege	3604	Beaming.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Beaming.exe

pid	Process
3604	Beaming.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Audio.execmd.execmd.exe

description	pid	Process	procid_target
PID 1208 wrote to memory of 3988	1208	Audio.exe	83
PID 1208 wrote to memory of 3988	1208	Audio.exe	83
PID 1208 wrote to memory of 616	1208	Audio.exe	85
PID 1208 wrote to memory of 616	1208	Audio.exe	85
PID 3988 wrote to memory of 4960	3988	cmd.exe	87
PID 3988 wrote to memory of 4960	3988	cmd.exe	87
PID 616 wrote to memory of 2204	616	cmd.exe	88
PID 616 wrote to memory of 2204	616	cmd.exe	88
PID 616 wrote to memory of 3604	616	cmd.exe	89
PID 616 wrote to memory of 3604	616	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\Audio.exe
"C:\Users\Admin\AppData\Local\Temp\Audio.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Beaming" /tr '"C:\Users\Admin\AppData\Roaming\Beaming.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3988
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Beaming" /tr '"C:\Users\Admin\AppData\Roaming\Beaming.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4960
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8D4C.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:616
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2204
- - C:\Users\Admin\AppData\Roaming\Beaming.exe
    "C:\Users\Admin\AppData\Roaming\Beaming.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3604

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8D4C.tmp.bat

Filesize
151B

MD5
f58360f4139ec6995062cec854476333

SHA1
b2b91b4a5f3aa8bfed2ea9f795e04b8a7a2b32b2

SHA256
a2ceca766f9fcb0e5af6888e6e52a2302fbcd264b093795d3aee43236b4cb620

SHA512
2efb414e4b31b69175db0a4506c715dfed89da362dae363fee128e29cbe9cee65564a77ec9cb8b8d99523e5d04ba88418fcfec51256e91b2a4330f2e994fe3a8

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

Filesize
74KB

MD5
c7795a63dfcc82fa556e31ed6867a716

SHA1
2efc2f8651dccbd08540dea01426d2572f4c4420

SHA256
8c54a5688aec016bd13c68a755c96de2029630e41d76bce15421dac86a6c256a

SHA512
14f40813e77225006dd3a97fd8984a47065ec72725fdcab7353c39cf12a06e18432c610c9b00258862b04c7c61ac72de6676caa0fd9fa684b853592285af7622

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/1208-0-0x00007FFEAA393000-0x00007FFEAA395000-memory.dmp

Filesize
8KB

Download
memory/1208-1-0x00000000000A0000-0x00000000000B8000-memory.dmp

Filesize
96KB

Download
memory/1208-3-0x00007FFEAA390000-0x00007FFEAAE51000-memory.dmp

Filesize
10.8MB

Download
memory/1208-8-0x00007FFEAA390000-0x00007FFEAAE51000-memory.dmp

Filesize
10.8MB

Download
memory/1208-9-0x00007FFEAA390000-0x00007FFEAAE51000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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