asyncrat | 1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52

General

Target

1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe
Size

47KB
MD5

17bbb12504a20c0c2544c8dac52ed0a1
SHA1

ff9c5d849ee5817d47e1339b7a7c266119352d45
SHA256

1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52
SHA512

b73ca96a3a51cebeb520b82b25da49785943d0aeeab731080a224c5f0397767ce12744b8f0ab56c9395b49070246badabd915882180592e4e79f7dc1882b7b44
SSDEEP

768:MuyJNTAoZjRWUJd9bmo2qLPqjtXVcPICdOYV8AbTkByRPZmRMBDZ0x:MuyJNTAGL2LTCdOajbQARPZmRKd0x

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

18.ip.gl.ply.gg:6606

18.ip.gl.ply.gg:7707

18.ip.gl.ply.gg:8808

18.ip.gl.ply.gg:9028

Mutex

kLUPkJ05yxZY

Attributes

delay
3
install
true
install_file
Discord.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/0x00080000000120f9-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2268	Discord.exe

Loads dropped DLL 1 IoCs

pid	Process
2496	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Discord.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2764	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
2296	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe
1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe
1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe
Token: SeDebugPrivilege	2268	Discord.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2452	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	30
PID 1728 wrote to memory of 2452	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	30
PID 1728 wrote to memory of 2452	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	30
PID 1728 wrote to memory of 2452	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	30
PID 1728 wrote to memory of 2496	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	32
PID 1728 wrote to memory of 2496	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	32
PID 1728 wrote to memory of 2496	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	32
PID 1728 wrote to memory of 2496	1728	1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe	32
PID 2496 wrote to memory of 2764	2496	cmd.exe	34
PID 2496 wrote to memory of 2764	2496	cmd.exe	34
PID 2496 wrote to memory of 2764	2496	cmd.exe	34
PID 2496 wrote to memory of 2764	2496	cmd.exe	34
PID 2452 wrote to memory of 2296	2452	cmd.exe	35
PID 2452 wrote to memory of 2296	2452	cmd.exe	35
PID 2452 wrote to memory of 2296	2452	cmd.exe	35
PID 2452 wrote to memory of 2296	2452	cmd.exe	35
PID 2496 wrote to memory of 2268	2496	cmd.exe	36
PID 2496 wrote to memory of 2268	2496	cmd.exe	36
PID 2496 wrote to memory of 2268	2496	cmd.exe	36
PID 2496 wrote to memory of 2268	2496	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe
"C:\Users\Admin\AppData\Local\Temp\1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Discord" /tr '"C:\Users\Admin\AppData\Roaming\Discord.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2452
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Discord" /tr '"C:\Users\Admin\AppData\Roaming\Discord.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2296
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpA506.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2764
- - C:\Users\Admin\AppData\Roaming\Discord.exe
    "C:\Users\Admin\AppData\Roaming\Discord.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2268

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\tmpA506.tmp.bat

Filesize
151B

MD5
5d358bf92777c349d17d0d5d98cfcf21

SHA1
89aff8c360f1d6fae72ab9ede37cead521d4b929

SHA256
cd8e0bf84ad998c1dffe62f722d7ba103f0c68880937c1aa6fd66b49d602114c

SHA512
889e5a4fb318889adcc74600c2d6e137f38ce18720c8c35767166e0366907b86ee1cb2a42ead57e9c9d7a529c755f2e31eea93dad0923c1ae3d25f53a313b515

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

Filesize
47KB

MD5
17bbb12504a20c0c2544c8dac52ed0a1

SHA1
ff9c5d849ee5817d47e1339b7a7c266119352d45

SHA256
1b9e97ba99aed432ccc47149bc929f9ad64a16241ac168017205312075600a52

SHA512
b73ca96a3a51cebeb520b82b25da49785943d0aeeab731080a224c5f0397767ce12744b8f0ab56c9395b49070246badabd915882180592e4e79f7dc1882b7b44

Download Submit
memory/1728-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/1728-1-0x0000000000D30000-0x0000000000D42000-memory.dmp

Filesize
72KB

Download
memory/1728-2-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1728-11-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2268-16-0x0000000001360000-0x0000000001372000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads