asyncrat | 3ea96b543a3d800b4a0153508871ed1c1941c43f4db0186c099e1ac76b35371b

General

Target

Client.exe
Size

47KB
MD5

9e48f4bb5a7ed00f52dddbd9326fb3c6
SHA1

29af113bb33d2c81b8afc0d43e0916fd397266a5
SHA256

3ea96b543a3d800b4a0153508871ed1c1941c43f4db0186c099e1ac76b35371b
SHA512

39c708feee6a470eafd09dee7fffec804f17583d90e91b0a29cfbfdb58ea973070e4e296e348fa4dbb919871538574cf3ac2d934c79c48b0afd5c4135d3efe36
SSDEEP

768:6u1a21T3EiJfWUzuydmo2qzQmtFbwl9iPIFOxTTXj0bcR47uNDFcEZCsrO/wBDZe:6u1a21T3xN2CclVFOxvYbcR4qNDFciCl

Score

10^/10

asyncrat dahood discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

DaHood

C2

ny-case.gl.at.ply.gg:000

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
Dahood.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

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Dahood.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

Dahood.exe

pid process

3040 Dahood.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3040	Dahood.exe

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

Processes:

Client.execmd.execmd.exeschtasks.exetimeout.exeDahood.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Client.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dahood.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3788 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

3984 schtasks.exe

pid	process
3788	timeout.exe

pid	process
3984	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

Client.exe

pid	process
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe
1948	Client.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Client.exeDahood.exe

description pid process

Token: SeDebugPrivilege 1948 Client.exe
Token: SeDebugPrivilege 3040 Dahood.exe

description	pid	process
Token: SeDebugPrivilege	1948	Client.exe
Token: SeDebugPrivilege	3040	Dahood.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Client.execmd.execmd.exe

description	pid	process	target process
PID 1948 wrote to memory of 1432	1948	Client.exe	cmd.exe
PID 1948 wrote to memory of 1432	1948	Client.exe	cmd.exe
PID 1948 wrote to memory of 1432	1948	Client.exe	cmd.exe
PID 1948 wrote to memory of 5112	1948	Client.exe	cmd.exe
PID 1948 wrote to memory of 5112	1948	Client.exe	cmd.exe
PID 1948 wrote to memory of 5112	1948	Client.exe	cmd.exe
PID 1432 wrote to memory of 3984	1432	cmd.exe	schtasks.exe
PID 1432 wrote to memory of 3984	1432	cmd.exe	schtasks.exe
PID 1432 wrote to memory of 3984	1432	cmd.exe	schtasks.exe
PID 5112 wrote to memory of 3788	5112	cmd.exe	timeout.exe
PID 5112 wrote to memory of 3788	5112	cmd.exe	timeout.exe
PID 5112 wrote to memory of 3788	5112	cmd.exe	timeout.exe
PID 5112 wrote to memory of 3040	5112	cmd.exe	Dahood.exe
PID 5112 wrote to memory of 3040	5112	cmd.exe	Dahood.exe
PID 5112 wrote to memory of 3040	5112	cmd.exe	Dahood.exe

C:\Users\Admin\AppData\Local\Temp\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Dahood" /tr '"C:\Users\Admin\AppData\Roaming\Dahood.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1432
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Dahood" /tr '"C:\Users\Admin\AppData\Roaming\Dahood.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3984
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAF6A.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5112
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3788
- - C:\Users\Admin\AppData\Roaming\Dahood.exe
    "C:\Users\Admin\AppData\Roaming\Dahood.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:3040

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\tmpAF6A.tmp.bat

Filesize
150B

MD5
771bc01144a9b6b3518b28147163dd52

SHA1
0b24075fbe20714fbd0857639e6a590d1d167f6d

SHA256
a09b0d6cbb6671495840906284fa732ddc0da6aeac7fae5393a992dd3ad84594

SHA512
9c4d1b98579b16eacd0b891e7e50cd52b7a9fb1a514feb6419f928f160a1d33fa86e8a1359423bf660463c3fd440455c21e1acd5f2564038cd9f362ffb1a7783

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

Filesize
47KB

MD5
9e48f4bb5a7ed00f52dddbd9326fb3c6

SHA1
29af113bb33d2c81b8afc0d43e0916fd397266a5

SHA256
3ea96b543a3d800b4a0153508871ed1c1941c43f4db0186c099e1ac76b35371b

SHA512
39c708feee6a470eafd09dee7fffec804f17583d90e91b0a29cfbfdb58ea973070e4e296e348fa4dbb919871538574cf3ac2d934c79c48b0afd5c4135d3efe36

Download Submit
memory/1948-0-0x0000000074EFE000-0x0000000074EFF000-memory.dmp

Filesize
4KB

Download
memory/1948-1-0x0000000000930000-0x0000000000942000-memory.dmp

Filesize
72KB

Download
memory/1948-2-0x0000000074EF0000-0x00000000756A1000-memory.dmp

Filesize
7.7MB

Download
memory/1948-3-0x0000000005450000-0x00000000054EC000-memory.dmp

Filesize
624KB

Download
memory/1948-8-0x0000000074EF0000-0x00000000756A1000-memory.dmp

Filesize
7.7MB

Download
memory/3040-13-0x0000000074E40000-0x00000000755F1000-memory.dmp

Filesize
7.7MB

Download
memory/3040-14-0x0000000074E40000-0x00000000755F1000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads