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 6 IoCs

rat

resource	yara_rule
behavioral1/memory/748-70-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/748-71-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/748-72-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/748-73-0x000000000040C72E-mapping.dmp	asyncrat
behavioral1/memory/748-75-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/748-77-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1648 set thread context of 748	1648	oqMoQagzP8VKz43.exe	34

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
1180	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1648	oqMoQagzP8VKz43.exe
1648	oqMoQagzP8VKz43.exe
584	powershell.exe
732	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1648	oqMoQagzP8VKz43.exe
Token: SeDebugPrivilege	732	powershell.exe
Token: SeDebugPrivilege	584	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 584	1648	oqMoQagzP8VKz43.exe	28
PID 1648 wrote to memory of 584	1648	oqMoQagzP8VKz43.exe	28
PID 1648 wrote to memory of 584	1648	oqMoQagzP8VKz43.exe	28
PID 1648 wrote to memory of 584	1648	oqMoQagzP8VKz43.exe	28
PID 1648 wrote to memory of 732	1648	oqMoQagzP8VKz43.exe	30
PID 1648 wrote to memory of 732	1648	oqMoQagzP8VKz43.exe	30
PID 1648 wrote to memory of 732	1648	oqMoQagzP8VKz43.exe	30
PID 1648 wrote to memory of 732	1648	oqMoQagzP8VKz43.exe	30
PID 1648 wrote to memory of 1180	1648	oqMoQagzP8VKz43.exe	31
PID 1648 wrote to memory of 1180	1648	oqMoQagzP8VKz43.exe	31
PID 1648 wrote to memory of 1180	1648	oqMoQagzP8VKz43.exe	31
PID 1648 wrote to memory of 1180	1648	oqMoQagzP8VKz43.exe	31
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34
PID 1648 wrote to memory of 748	1648	oqMoQagzP8VKz43.exe	34

C:\Users\Admin\AppData\Local\Temp\oqMoQagzP8VKz43.exe
"C:\Users\Admin\AppData\Local\Temp\oqMoQagzP8VKz43.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1648
- 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:584
- 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:732
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVhpZafFxuywiT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA297.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1180
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:748

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA297.tmp

Filesize
1KB

MD5
cb6767552613e445f04d279278bcc521

SHA1
93581dd3a5e972e1ec7c1c158a73b9b97895a5bb

SHA256
caa3378bad1f4c173859120b3ea65951f6f9223b1d3e380999e87d99f3890870

SHA512
69febf82a409c033571ae0bb760d8a28d70bb1c60b6818fdbf15ec7727e2470674cc46939086bcbdcc2e9ca5fcb8ab178b0036c13ca401927e15b56fae2c9f60

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
867532f123863dfdfa16aa5a8417b008

SHA1
45a26931bfb0f013c52a6033cb112ed568a654ec

SHA256
0c5a5242f88ecaa819afde8fab7e35905b8aed7e52b9a7817577603ad5ad2092

SHA512
33b70a8d9bcd269481ee279b4f18cd1385f0f57965c482305911bdf4ada5bc80af152bd0ca0915280998906558cc2c77f30976f454eaf2f71cf6569224a5060b

Download Submit
memory/584-80-0x000000006E1E0000-0x000000006E78B000-memory.dmp

Filesize
5.7MB

Download
memory/584-78-0x000000006E1E0000-0x000000006E78B000-memory.dmp

Filesize
5.7MB

Download
memory/732-81-0x000000006E1E0000-0x000000006E78B000-memory.dmp

Filesize
5.7MB

Download
memory/732-79-0x000000006E1E0000-0x000000006E78B000-memory.dmp

Filesize
5.7MB

Download
memory/748-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/748-77-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/748-75-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/748-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/748-68-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/748-70-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/748-71-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-54-0x0000000000D60000-0x0000000000E28000-memory.dmp

Filesize
800KB

Download
memory/1648-66-0x0000000005DC0000-0x0000000005DEE000-memory.dmp

Filesize
184KB

Download
memory/1648-58-0x0000000005CE0000-0x0000000005D48000-memory.dmp

Filesize
416KB

Download
memory/1648-57-0x00000000005B0000-0x00000000005BA000-memory.dmp

Filesize
40KB

Download
memory/1648-56-0x0000000000580000-0x0000000000594000-memory.dmp

Filesize
80KB

Download
memory/1648-55-0x00000000764C1000-0x00000000764C3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads