asyncrat | 21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca

General

Target

21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe
Size

61KB
MD5

2499d05e60a2aae9123f0f37d12ab1dd
SHA1

b24fe29c7cc5319fe508ea539567e4832c6890cf
SHA256

21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca
SHA512

f5fbb29e6e99fd73250737dacc9b45409da600459d6a7c7ef6a02c508f31702e522f9eb5ca9d29ac7d1b59a024dbf66e4a869ea18e75e14c96523011fc1d0ca1
SSDEEP

1536:8F8JsI94/CcIAVBala3b7PSSD3pKFNEx+:m8JsZCcIAzala3b7NDQFNEE

Score

10^/10

asyncrat discovery rat

Malware Config

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/0x00090000000165a7-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2956	girlshelpgirls2.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	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	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.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	girlshelpgirls2.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2688	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
2292	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe
2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe
2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe
Token: SeDebugPrivilege	2956	girlshelpgirls2.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2348	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	31
PID 2156 wrote to memory of 2348	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	31
PID 2156 wrote to memory of 2348	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	31
PID 2156 wrote to memory of 2348	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	31
PID 2156 wrote to memory of 2932	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	33
PID 2156 wrote to memory of 2932	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	33
PID 2156 wrote to memory of 2932	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	33
PID 2156 wrote to memory of 2932	2156	21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe	33
PID 2348 wrote to memory of 2292	2348	cmd.exe	35
PID 2348 wrote to memory of 2292	2348	cmd.exe	35
PID 2348 wrote to memory of 2292	2348	cmd.exe	35
PID 2348 wrote to memory of 2292	2348	cmd.exe	35
PID 2932 wrote to memory of 2688	2932	cmd.exe	36
PID 2932 wrote to memory of 2688	2932	cmd.exe	36
PID 2932 wrote to memory of 2688	2932	cmd.exe	36
PID 2932 wrote to memory of 2688	2932	cmd.exe	36
PID 2932 wrote to memory of 2956	2932	cmd.exe	37
PID 2932 wrote to memory of 2956	2932	cmd.exe	37
PID 2932 wrote to memory of 2956	2932	cmd.exe	37
PID 2932 wrote to memory of 2956	2932	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe
"C:\Users\Admin\AppData\Local\Temp\21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "girlshelpgirls2" /tr '"C:\Users\Admin\AppData\Roaming\girlshelpgirls2.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "girlshelpgirls2" /tr '"C:\Users\Admin\AppData\Roaming\girlshelpgirls2.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2292
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD24D.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2932
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2688
- - C:\Users\Admin\AppData\Roaming\girlshelpgirls2.exe
    "C:\Users\Admin\AppData\Roaming\girlshelpgirls2.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2956

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\tmpD24D.tmp.bat

Filesize
159B

MD5
e995cece0b86684d52e9f6889c7394fe

SHA1
d60a202a1934f734d999948eb8bcbf77053a56ba

SHA256
11d22d298bc8bc42f446f81871260e1e43dc575495e8281cc096f64a3ee71ad9

SHA512
6d618e548afda1d402f91c385dfbf5f84d7672ea9c7ba09a200a4c785250252edd08ca2dafa9514f50114b027238eed4f41fbe9eb1fd556fbbc59e905054150f

Download Submit
C:\Users\Admin\AppData\Roaming\girlshelpgirls2.exe

Filesize
61KB

MD5
2499d05e60a2aae9123f0f37d12ab1dd

SHA1
b24fe29c7cc5319fe508ea539567e4832c6890cf

SHA256
21b61d55d4619a2ca0a1893a1a18154260eb81c76d421e3a60e5596ef8c2ccca

SHA512
f5fbb29e6e99fd73250737dacc9b45409da600459d6a7c7ef6a02c508f31702e522f9eb5ca9d29ac7d1b59a024dbf66e4a869ea18e75e14c96523011fc1d0ca1

Download Submit
memory/2156-0-0x000000007440E000-0x000000007440F000-memory.dmp

Filesize
4KB

Download
memory/2156-1-0x0000000000170000-0x0000000000186000-memory.dmp

Filesize
88KB

Download
memory/2156-2-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2156-11-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-16-0x0000000000E30000-0x0000000000E46000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads