asyncrat | b08ab7f2566b8d9d5de71faa1eb1bcea350ef22061341b36426ce7dcb47cd461

General

Target

AsyncRAT v2.1.rar
Size

5.8MB
MD5

d0cfadf8cb435fdb4610ff0fa23bdd02
SHA1

b4f83eb982ea4b98706aa381ef20450a437ebb0f
SHA256

b08ab7f2566b8d9d5de71faa1eb1bcea350ef22061341b36426ce7dcb47cd461
SHA512

5aed232560bba0aa62e99581945e55773e54cec39aea67bc64e6f07c90e459a4e9cc15a84ba2791763bac4da686a9c19bb1417c05e06bd93b45cc9086fb00786
SSDEEP

98304:5ucP8rf59Arnon3aOsenEr2gddv2uPUsTZgjdwPEfYP+OlNld24am:5b8dWnon3ZErH92uZTeuNPrlNP2+

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

mimihard.ddns.net:5353

mimihard.ddns.net:1900

mimihard.ddns.net:5355

mimihard.ddns.net:61025

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
taskhostw.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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x001900000002b03e-63.dat	family_asyncrat

Executes dropped EXE 4 IoCs

pid	Process
5640	AsyncRAT.exe
1624	Tojulvfveuxe.exe
4556	Scinhgekba.exe
2656	taskhostw.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Scinhgekba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskhostw.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5604	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
4996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

pid	Process
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
4556	Scinhgekba.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe
1624	Tojulvfveuxe.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3408	7zFM.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	3408	7zFM.exe
Token: 35	3408	7zFM.exe
Token: SeSecurityPrivilege	3408	7zFM.exe
Token: SeDebugPrivilege	4556	Scinhgekba.exe
Token: SeDebugPrivilege	2656	taskhostw.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3408	7zFM.exe
3408	7zFM.exe
1624	Tojulvfveuxe.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1624	Tojulvfveuxe.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 5640 wrote to memory of 1624	5640	AsyncRAT.exe	87
PID 5640 wrote to memory of 1624	5640	AsyncRAT.exe	87
PID 5640 wrote to memory of 4556	5640	AsyncRAT.exe	88
PID 5640 wrote to memory of 4556	5640	AsyncRAT.exe	88
PID 5640 wrote to memory of 4556	5640	AsyncRAT.exe	88
PID 4556 wrote to memory of 428	4556	Scinhgekba.exe	91
PID 4556 wrote to memory of 428	4556	Scinhgekba.exe	91
PID 4556 wrote to memory of 428	4556	Scinhgekba.exe	91
PID 4556 wrote to memory of 5600	4556	Scinhgekba.exe	92
PID 4556 wrote to memory of 5600	4556	Scinhgekba.exe	92
PID 4556 wrote to memory of 5600	4556	Scinhgekba.exe	92
PID 5600 wrote to memory of 5604	5600	cmd.exe	95
PID 5600 wrote to memory of 5604	5600	cmd.exe	95
PID 5600 wrote to memory of 5604	5600	cmd.exe	95
PID 428 wrote to memory of 4996	428	cmd.exe	96
PID 428 wrote to memory of 4996	428	cmd.exe	96
PID 428 wrote to memory of 4996	428	cmd.exe	96
PID 5600 wrote to memory of 2656	5600	cmd.exe	99
PID 5600 wrote to memory of 2656	5600	cmd.exe	99
PID 5600 wrote to memory of 2656	5600	cmd.exe	99

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\AsyncRAT v2.1.rar"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3408

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3124

C:\Users\Admin\Desktop\AsyncRAT v2.1\AsyncRAT.exe
"C:\Users\Admin\Desktop\AsyncRAT v2.1\AsyncRAT.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5640
- C:\Users\Admin\AppData\Local\Temp\Tojulvfveuxe.exe
  "C:\Users\Admin\AppData\Local\Temp\Tojulvfveuxe.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1624
- C:\Users\Admin\AppData\Local\Temp\Scinhgekba.exe
  "C:\Users\Admin\AppData\Local\Temp\Scinhgekba.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4556
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "taskhostw" /tr '"C:\Users\Admin\AppData\Roaming\taskhostw.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:428
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "taskhostw" /tr '"C:\Users\Admin\AppData\Roaming\taskhostw.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4996
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB287.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5600
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:5604
  - - C:\Users\Admin\AppData\Roaming\taskhostw.exe
      "C:\Users\Admin\AppData\Roaming\taskhostw.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2656

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:5892

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

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Scinhgekba.exe

Filesize
1024KB

MD5
8904b6100dd8e7d1f9d42a7fdc8c936a

SHA1
53e9a52df26a038e9282ca49be93698d6041f622

SHA256
3a3d7f82a905d2577fb5cdbb29e00805500b80ce0703bf2baf6ccd21996fa47c

SHA512
b2dbac867df4a00717c717aaca7025b439110514723bb846ea7929d5a006dfca406aa7d57cd434c7ab424ecfc617dfc4f1f94f1fef66e2ddefda62f9f392f8e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tojulvfveuxe.exe

Filesize
6.4MB

MD5
36e71813a30b96f64943eb8cea2c52ec

SHA1
838f8938ff5f6e2daa8975bbd2af3e785bf4cd8b

SHA256
bb1f2c2c9b279790b67eaea6ab0bbce3a4d4432bbe1bd716750f2f9ba3337f7e

SHA512
953bc81e1f6c27763f84a1599cd92e3f30aed9217589b4c47bd0ca802df7ceff903e14f87a96f2247cde8e8ed0ebfa3dbd840abb6c243b798cc0a19791296b85

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB287.tmp.bat

Filesize
153B

MD5
d9f7e404f1a20427a40513dc491e0342

SHA1
6a832218234b3df039f3da81f1164a08a4e17442

SHA256
175a0e4aac1b8ca4698893141e7420becc1870c9c91e713cf884d1d8813de334

SHA512
b9c43930b4f3b12b562aea58ab58504c780aeb8e07408afe88bf0b489c1cf5ca63ed638af8e950ceb926d6ba452d905e55cd0f2048e268f2067d25d5b7fce098

Download Submit
C:\Users\Admin\Desktop\AsyncRAT v2.1\AsyncRAT.exe

Filesize
6.0MB

MD5
34c62e8ffbe11193392c51872444deaa

SHA1
b7920bb0a3f068f0a261f643c968895b858f04ef

SHA256
e35bf51c40c50f326fb71764c23679be6df7bf8f67616bd5329c9948901a251e

SHA512
f2ebde604b43e96e24c5107a25383f720990bbe7ff808f0b1a51ec8b0d660cf8fd4b4417ace05e6181fc05cafde1b30d3e074b0c3f0ea31926d80c8d2e813a6b

Download Submit
C:\Users\Admin\Desktop\AsyncRAT v2.1\AsyncRAT.exe.config

Filesize
5KB

MD5
68fd5096a7df51bafad5ddb39ffc4eba

SHA1
14c74a1eefec2d1c67e4b0f081ce6e794b625a88

SHA256
28c532e21671a284e46bee6792f90e15f53093fbed16732e432867b8a48f2cbb

SHA512
acb42e52062e48eccd5b0153e4882e284d1bd7941b616d952f5d8c97f6f38df024dff699ac2e6b6a669d144072efe768b8d4ae56d28fd291ff44bad404c18502

Download Submit
memory/1624-73-0x0000021C11460000-0x0000021C11AC6000-memory.dmp

Filesize
6.4MB

Download
memory/1624-75-0x0000021C2C000000-0x0000021C2C252000-memory.dmp

Filesize
2.3MB

Download
memory/4556-72-0x0000000000AB0000-0x0000000000AC2000-memory.dmp

Filesize
72KB

Download
memory/4556-76-0x0000000005650000-0x00000000056EC000-memory.dmp

Filesize
624KB

Download
memory/5640-47-0x00007FFF3E490000-0x00007FFF3EF52000-memory.dmp

Filesize
10.8MB

Download
memory/5640-70-0x00007FFF3E490000-0x00007FFF3EF52000-memory.dmp

Filesize
10.8MB

Download
memory/5640-46-0x0000000000E50000-0x00000000012E6000-memory.dmp

Filesize
4.6MB

Download
memory/5640-45-0x00007FFF3E493000-0x00007FFF3E495000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads