asyncrat | dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1d

General

Target

dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe
Size

74KB
MD5

c745590f5b7590f217bb204d27e91a00
SHA1

9d60ffc369b1fbdae8549b859729f47477658ddd
SHA256

dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1d
SHA512

5c6082eb180abeceda71ac259f9fef4bd90b47e3d2adf05280f7e0a3e3b6bed1508a0e09d6f5bcbcc7bfa868b0fc2fd9ff00dab7121baa778e575eed32dddaf3
SSDEEP

1536:ZUNwcxbUTCrmPMVIEh3kLuaIsH1bTc6yOQzc2LVclN:ZUicxbgwmPMVffAH1bTVQPBY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

wgzvrzpksxgiaglrvq

Attributes

c2_url_file
https://paste.ee/r/Wp7LQ/0
delay
1
install
true
install_file
System.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/2428-1-0x0000000001260000-0x0000000001278000-memory.dmp	VenomRAT
behavioral1/files/0x002b000000015c7b-16.dat	VenomRAT
behavioral1/memory/2640-18-0x00000000002B0000-0x00000000002C8000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x002b000000015c7b-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2640	System.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
2816	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
2884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe
2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe
2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe
2640	System.exe
2640	System.exe
2640	System.exe
2640	System.exe
2640	System.exe
2640	System.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe
Token: SeDebugPrivilege	2640	System.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2640	System.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2756	2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe	30
PID 2428 wrote to memory of 2756	2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe	30
PID 2428 wrote to memory of 2756	2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe	30
PID 2428 wrote to memory of 2656	2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe	31
PID 2428 wrote to memory of 2656	2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe	31
PID 2428 wrote to memory of 2656	2428	dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe	31
PID 2656 wrote to memory of 2816	2656	cmd.exe	34
PID 2656 wrote to memory of 2816	2656	cmd.exe	34
PID 2656 wrote to memory of 2816	2656	cmd.exe	34
PID 2756 wrote to memory of 2884	2756	cmd.exe	35
PID 2756 wrote to memory of 2884	2756	cmd.exe	35
PID 2756 wrote to memory of 2884	2756	cmd.exe	35
PID 2656 wrote to memory of 2640	2656	cmd.exe	36
PID 2656 wrote to memory of 2640	2656	cmd.exe	36
PID 2656 wrote to memory of 2640	2656	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\dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe
"C:\Users\Admin\AppData\Local\Temp\dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1dN.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "System" /tr '"C:\Users\Admin\AppData\Roaming\System.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "System" /tr '"C:\Users\Admin\AppData\Roaming\System.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2884
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8AA3.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2656
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2816
- - C:\Users\Admin\AppData\Roaming\System.exe
    "C:\Users\Admin\AppData\Roaming\System.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2640

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8AA3.tmp.bat

Filesize
150B

MD5
066ca612fa8226546851c1bc0dd0d9bf

SHA1
9e4b9c815c4e56d7183cbd9089eb0109681a763c

SHA256
2350b5c22e9a1cd125afd99cd0ea864b361032736fda9db14c44cea78731828a

SHA512
488a39c12dc78db55938ed257d01715e0b4db23938f326eca60d4a6af044e41ed6bc363a7ed41319160cb1c234b016f70bd0f50edb16e3510df4f96dce59d611

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\System.exe

Filesize
74KB

MD5
c745590f5b7590f217bb204d27e91a00

SHA1
9d60ffc369b1fbdae8549b859729f47477658ddd

SHA256
dfb98932671339fb633c74180dba3810d9382e56618d75b3f67ae2ba3206aa1d

SHA512
5c6082eb180abeceda71ac259f9fef4bd90b47e3d2adf05280f7e0a3e3b6bed1508a0e09d6f5bcbcc7bfa868b0fc2fd9ff00dab7121baa778e575eed32dddaf3

Download Submit
memory/2428-0-0x000007FEF5073000-0x000007FEF5074000-memory.dmp

Filesize
4KB

Download
memory/2428-1-0x0000000001260000-0x0000000001278000-memory.dmp

Filesize
96KB

Download
memory/2428-3-0x000007FEF5070000-0x000007FEF5A5C000-memory.dmp

Filesize
9.9MB

Download
memory/2428-11-0x000007FEF5070000-0x000007FEF5A5C000-memory.dmp

Filesize
9.9MB

Download
memory/2428-14-0x000007FEF5070000-0x000007FEF5A5C000-memory.dmp

Filesize
9.9MB

Download
memory/2640-18-0x00000000002B0000-0x00000000002C8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads