asyncrat | e34009211e3fc2f56b92d9754e2436eee863031a9ff24f44db6c7958c67f6c9d

General

Target

483ea502e0c3fa73f8384ece68e0cfc0N.exe
Size

74KB
MD5

483ea502e0c3fa73f8384ece68e0cfc0
SHA1

a01d7e6ced28a41e03c4aa651ce68c9e855a0489
SHA256

e34009211e3fc2f56b92d9754e2436eee863031a9ff24f44db6c7958c67f6c9d
SHA512

8d610258c0b1e953bb1b22cf39bce267875e76039ff8ec13221ea236c48e2c88e275e650e8ec323ae107b6435d34ea60f3760dcc81761a59a266d34b5e0360a0
SSDEEP

1536:FUSwcxea0CTmPMVWe9VdQuDI6H1bf/DEhQzcKLVclN:FUTcxeFImPMVWe9VdQsH1bfrEhQ7BY

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

127.0.0.1:0

85.105.91.170:4449

85.105.91.170:0

Mutex

magtzafsfzjwekrq

Attributes

delay
1
install
true
install_file
aa.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x00290000000186c2-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2868	aa.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
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
2756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe
2868	aa.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe
Token: SeDebugPrivilege	2868	aa.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2868	aa.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2156	2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe	30
PID 2540 wrote to memory of 2156	2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe	30
PID 2540 wrote to memory of 2156	2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe	30
PID 2540 wrote to memory of 2708	2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe	31
PID 2540 wrote to memory of 2708	2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe	31
PID 2540 wrote to memory of 2708	2540	483ea502e0c3fa73f8384ece68e0cfc0N.exe	31
PID 2156 wrote to memory of 2756	2156	cmd.exe	34
PID 2156 wrote to memory of 2756	2156	cmd.exe	34
PID 2156 wrote to memory of 2756	2156	cmd.exe	34
PID 2708 wrote to memory of 2724	2708	cmd.exe	35
PID 2708 wrote to memory of 2724	2708	cmd.exe	35
PID 2708 wrote to memory of 2724	2708	cmd.exe	35
PID 2708 wrote to memory of 2868	2708	cmd.exe	36
PID 2708 wrote to memory of 2868	2708	cmd.exe	36
PID 2708 wrote to memory of 2868	2708	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\483ea502e0c3fa73f8384ece68e0cfc0N.exe
"C:\Users\Admin\AppData\Local\Temp\483ea502e0c3fa73f8384ece68e0cfc0N.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "aa" /tr '"C:\Users\Admin\AppData\Roaming\aa.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "aa" /tr '"C:\Users\Admin\AppData\Roaming\aa.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2756
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF2E7.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2724
- - C:\Users\Admin\AppData\Roaming\aa.exe
    "C:\Users\Admin\AppData\Roaming\aa.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2868

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\tmpF2E7.tmp.bat

Filesize
146B

MD5
197d97f4b8726c2aee7b41dc70de0175

SHA1
886b11c391d3f2c7ab882f2dbe50c84f07579f28

SHA256
136693d1285e91b87323cb52c9c1146d050c11e5cf757a8e5c5fec480abb14de

SHA512
727c9ffba5822b0731a7f81e7f981a9e69c1c922d252838d8aac86eb2bdb122025ac0a01b9951bf63132e9e7ba614f062e768cad3d87c48e2db19eff7a295e4e

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\aa.exe

Filesize
74KB

MD5
483ea502e0c3fa73f8384ece68e0cfc0

SHA1
a01d7e6ced28a41e03c4aa651ce68c9e855a0489

SHA256
e34009211e3fc2f56b92d9754e2436eee863031a9ff24f44db6c7958c67f6c9d

SHA512
8d610258c0b1e953bb1b22cf39bce267875e76039ff8ec13221ea236c48e2c88e275e650e8ec323ae107b6435d34ea60f3760dcc81761a59a266d34b5e0360a0

Download Submit
memory/2540-0-0x000007FEF5DB3000-0x000007FEF5DB4000-memory.dmp

Filesize
4KB

Download
memory/2540-1-0x0000000001210000-0x0000000001228000-memory.dmp

Filesize
96KB

Download
memory/2540-3-0x000007FEF5DB0000-0x000007FEF679C000-memory.dmp

Filesize
9.9MB

Download
memory/2540-12-0x000007FEF5DB0000-0x000007FEF679C000-memory.dmp

Filesize
9.9MB

Download
memory/2540-14-0x000007FEF5DB0000-0x000007FEF679C000-memory.dmp

Filesize
9.9MB

Download
memory/2868-18-0x0000000001220000-0x0000000001238000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads