asyncrat | 6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df

General

Target

6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe
Size

47KB
MD5

a61684f350ff956870a16d05173e4f87
SHA1

986508cb3d8c42e11e3c500b1cd90cdee45a5fb7
SHA256

6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df
SHA512

8683d86cb398083369096cded2db2b99a970e82c802ba0f5bf43e6bded480cd07890585a94bd5c5c1f331013a254b0feb4765811187ab3e3b078acc9127d03a4
SSDEEP

768:guyxNTAoZjRWUJd9bmo2qLo4A2o7P5Pjy1fPIxK220bMUWCPAWO2KO5dfhDBDZQx:guyxNTAGL2B4W1P214xXZb9WuAW5D5d

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

driiftandsliide.freemyip.com:9112

Mutex

RdjvRUIVRjEr

Attributes

delay
3
install
true
install_file
asyncgg.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/0x000d0000000133b8-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2660	asyncgg.exe

Loads dropped DLL 1 IoCs

pid	Process
1284	cmd.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	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	asyncgg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2972	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
2860	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe
3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe
3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe
Token: SeDebugPrivilege	2660	asyncgg.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2828	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	31
PID 3052 wrote to memory of 2828	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	31
PID 3052 wrote to memory of 2828	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	31
PID 3052 wrote to memory of 2828	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	31
PID 3052 wrote to memory of 1284	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	33
PID 3052 wrote to memory of 1284	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	33
PID 3052 wrote to memory of 1284	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	33
PID 3052 wrote to memory of 1284	3052	6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe	33
PID 2828 wrote to memory of 2860	2828	cmd.exe	35
PID 2828 wrote to memory of 2860	2828	cmd.exe	35
PID 2828 wrote to memory of 2860	2828	cmd.exe	35
PID 2828 wrote to memory of 2860	2828	cmd.exe	35
PID 1284 wrote to memory of 2972	1284	cmd.exe	36
PID 1284 wrote to memory of 2972	1284	cmd.exe	36
PID 1284 wrote to memory of 2972	1284	cmd.exe	36
PID 1284 wrote to memory of 2972	1284	cmd.exe	36
PID 1284 wrote to memory of 2660	1284	cmd.exe	37
PID 1284 wrote to memory of 2660	1284	cmd.exe	37
PID 1284 wrote to memory of 2660	1284	cmd.exe	37
PID 1284 wrote to memory of 2660	1284	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe
"C:\Users\Admin\AppData\Local\Temp\6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "asyncgg" /tr '"C:\Users\Admin\AppData\Roaming\asyncgg.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "asyncgg" /tr '"C:\Users\Admin\AppData\Roaming\asyncgg.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2860
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp342A.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1284
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2972
- - C:\Users\Admin\AppData\Roaming\asyncgg.exe
    "C:\Users\Admin\AppData\Roaming\asyncgg.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2660

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\tmp342A.tmp.bat

Filesize
151B

MD5
70c58e5fd06cc7c256b641e1cf25f1b4

SHA1
17e4074d357ef9d950462a9c597be72e2a08aafa

SHA256
32e0a7fee219dee0647beb024c5e69cece85fbab3f70663d21c601c803820a6d

SHA512
9c9e21c269f869967c4fdbcf46e5361ed26205bf3d8139b5bdc959395e5e662bb9fa1d06507d7b84cfa44208bd49d4fbdee9e2c0a5c16bd6a63743f1ecf1f141

Download Submit
\Users\Admin\AppData\Roaming\asyncgg.exe

Filesize
47KB

MD5
a61684f350ff956870a16d05173e4f87

SHA1
986508cb3d8c42e11e3c500b1cd90cdee45a5fb7

SHA256
6d64174947404380a6c14beea26c75d4c6fc5d33f1f92ac872cdcd791be454df

SHA512
8683d86cb398083369096cded2db2b99a970e82c802ba0f5bf43e6bded480cd07890585a94bd5c5c1f331013a254b0feb4765811187ab3e3b078acc9127d03a4

Download Submit
memory/2660-16-0x0000000000130000-0x0000000000142000-memory.dmp

Filesize
72KB

Download
memory/3052-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/3052-1-0x0000000000C70000-0x0000000000C82000-memory.dmp

Filesize
72KB

Download
memory/3052-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/3052-12-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads