asyncrat | eb1649abd90cf1e6bef505656bf715a3a10549840474b31ea7221ae19e1de55d

General

Target

oqMoQagzP8VKz43.exe
Size

775KB
MD5

9b0c7f10c6fef6d28e107610bf7ca89c
SHA1

9dcedbd59ed5d25292bbc2266cca93b408f59e84
SHA256

eb1649abd90cf1e6bef505656bf715a3a10549840474b31ea7221ae19e1de55d
SHA512

648550c6e1e51e8a5b84cd2f465d54c13e9f8b35e263876e620bcd62ecb2e4ba0967af0c1e7816d138c274179be6adaa8f30bad7a2a2de90ff7d8d7743770abf
SSDEEP

24576:viABAsHiLO/ETSfx42dQxCo6F0xMpqG4yPa:H7HiyETSu2iaWiq

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

192.3.193.136:2023

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/2104-147-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	oqMoQagzP8VKz43.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 2104	2912	oqMoQagzP8VKz43.exe	96

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2280	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2912	oqMoQagzP8VKz43.exe
4296	powershell.exe
1592	powershell.exe
2912	oqMoQagzP8VKz43.exe
4296	powershell.exe
1592	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2912	oqMoQagzP8VKz43.exe
Token: SeDebugPrivilege	1592	powershell.exe
Token: SeDebugPrivilege	4296	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 4296	2912	oqMoQagzP8VKz43.exe	90
PID 2912 wrote to memory of 4296	2912	oqMoQagzP8VKz43.exe	90
PID 2912 wrote to memory of 4296	2912	oqMoQagzP8VKz43.exe	90
PID 2912 wrote to memory of 1592	2912	oqMoQagzP8VKz43.exe	92
PID 2912 wrote to memory of 1592	2912	oqMoQagzP8VKz43.exe	92
PID 2912 wrote to memory of 1592	2912	oqMoQagzP8VKz43.exe	92
PID 2912 wrote to memory of 2280	2912	oqMoQagzP8VKz43.exe	94
PID 2912 wrote to memory of 2280	2912	oqMoQagzP8VKz43.exe	94
PID 2912 wrote to memory of 2280	2912	oqMoQagzP8VKz43.exe	94
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96
PID 2912 wrote to memory of 2104	2912	oqMoQagzP8VKz43.exe	96

C:\Users\Admin\AppData\Local\Temp\oqMoQagzP8VKz43.exe
"C:\Users\Admin\AppData\Local\Temp\oqMoQagzP8VKz43.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\oqMoQagzP8VKz43.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4296
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FVhpZafFxuywiT.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1592
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVhpZafFxuywiT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D2.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2280
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4D2.tmp

Filesize
1KB

MD5
ff125f35969edbfd4508fd9775c37962

SHA1
8403f056a801d2760fb9e505e3d987e67bd7993b

SHA256
fa8c723747db6430b65c5495d0b6d2280d6cc2ed82168b33c6302d51aede42f4

SHA512
6ff2571953e625e9873233f248892b8c163821c01c84d89bd4c43d98864340d53f480229ba51267e5d36ffdb0c01d55fa78fc87b2e1d88833528b5e36eeca000

Download Submit
memory/1592-157-0x0000000007900000-0x000000000790E000-memory.dmp

Filesize
56KB

Download
memory/1592-155-0x0000000007740000-0x000000000774A000-memory.dmp

Filesize
40KB

Download
memory/1592-154-0x00000000076D0000-0x00000000076EA000-memory.dmp

Filesize
104KB

Download
memory/1592-151-0x0000000075B50000-0x0000000075B9C000-memory.dmp

Filesize
304KB

Download
memory/1592-138-0x0000000000000000-mapping.dmp

Download
memory/1592-145-0x0000000005D70000-0x0000000005DD6000-memory.dmp

Filesize
408KB

Download
memory/1592-143-0x0000000005300000-0x0000000005322000-memory.dmp

Filesize
136KB

Download
memory/2104-147-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2104-146-0x0000000000000000-mapping.dmp

Download
memory/2280-139-0x0000000000000000-mapping.dmp

Download
memory/2912-136-0x0000000008870000-0x000000000890C000-memory.dmp

Filesize
624KB

Download
memory/2912-133-0x0000000005680000-0x0000000005C24000-memory.dmp

Filesize
5.6MB

Download
memory/2912-134-0x0000000005010000-0x00000000050A2000-memory.dmp

Filesize
584KB

Download
memory/2912-132-0x00000000005C0000-0x0000000000688000-memory.dmp

Filesize
800KB

Download
memory/2912-135-0x00000000051C0000-0x00000000051CA000-memory.dmp

Filesize
40KB

Download
memory/4296-137-0x0000000000000000-mapping.dmp

Download
memory/4296-149-0x0000000007410000-0x0000000007442000-memory.dmp

Filesize
200KB

Download
memory/4296-148-0x0000000006440000-0x000000000645E000-memory.dmp

Filesize
120KB

Download
memory/4296-150-0x0000000075B50000-0x0000000075B9C000-memory.dmp

Filesize
304KB

Download
memory/4296-152-0x00000000069E0000-0x00000000069FE000-memory.dmp

Filesize
120KB

Download
memory/4296-153-0x0000000007D90000-0x000000000840A000-memory.dmp

Filesize
6.5MB

Download
memory/4296-141-0x0000000005650000-0x0000000005C78000-memory.dmp

Filesize
6.2MB

Download
memory/4296-140-0x0000000002B10000-0x0000000002B46000-memory.dmp

Filesize
216KB

Download
memory/4296-156-0x00000000079C0000-0x0000000007A56000-memory.dmp

Filesize
600KB

Download
memory/4296-144-0x0000000005D50000-0x0000000005DB6000-memory.dmp

Filesize
408KB

Download
memory/4296-158-0x0000000007A80000-0x0000000007A9A000-memory.dmp

Filesize
104KB

Download
memory/4296-159-0x0000000007A60000-0x0000000007A68000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads