asyncrat | 4f3642f36e5ba22aec031ad20349200b39114fdb470b78247f1c1a5626146a87

General

Target

V-M_2022.exe
Size

52KB
MD5

1f90ecea05ef9adfaa814d95a750f4ef
SHA1

71bfea6663dbfc06e228113e44723e91bf46f619
SHA256

4f3642f36e5ba22aec031ad20349200b39114fdb470b78247f1c1a5626146a87
SHA512

644696c4973d8ca08c8d054238688aa2a76ea97abe434608e77d82def125d714f21d59b8d35faceb80fdca52b6a0a580f7c1303c2c67fa65088df70c4d5d05cb

Score

10^/10

asyncrat persistence rat

Malware Config

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

V-M_2022.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Xhaienfx = "\"C:\\Users\\Admin\\AppData\\Roaming\\Vropvbhcy\\Xhaienfx.exe\""	V-M_2022.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

V-M_2022.exe

description pid process target process

PID 1488 set thread context of 1356 1488 V-M_2022.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exepowershell.exeV-M_2022.exe

pid process

1052 powershell.exe
1728 powershell.exe
1488 V-M_2022.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

V-M_2022.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1488 V-M_2022.exe
Token: SeDebugPrivilege 1052 powershell.exe
Token: SeDebugPrivilege 1728 powershell.exe

description	pid	process	target process
PID 1488 set thread context of 1356	1488	V-M_2022.exe	InstallUtil.exe

pid	process
1052	powershell.exe
1728	powershell.exe
1488	V-M_2022.exe

description	pid	process
Token: SeDebugPrivilege	1488	V-M_2022.exe
Token: SeDebugPrivilege	1052	powershell.exe
Token: SeDebugPrivilege	1728	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

V-M_2022.exe

description	pid	process	target process
PID 1488 wrote to memory of 1052	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1052	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1052	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1052	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1728	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1728	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1728	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1728	1488	V-M_2022.exe	powershell.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe
PID 1488 wrote to memory of 1356	1488	V-M_2022.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\V-M_2022.exe
"C:\Users\Admin\AppData\Local\Temp\V-M_2022.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1052

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwADsAIABTAGUAdAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAJwBDADoAXAAnAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1728

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:1356

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize
7KB

MD5
b9dbce856d8e578ca68ce61c3cf5e494

SHA1
234aa0b39b46baf1843f292dc94f891cc4b44103

SHA256
c75b74f67328805225c8b1a75eadae7535bdfd501caa75a6e40e30956d866d7a

SHA512
fadbc71607f7b29246765762c79dfde37be26c7b006e6e64235cbb7d220899c22a0dd9131e56370f4fe1613aea3a1c2d1bcd7f84953ba98fcbb9a1e0e482ae75

Download Submit
memory/1052-59-0x0000000000000000-mapping.dmp

Download
memory/1052-61-0x000000006FF80000-0x000000007052B000-memory.dmp

Filesize
5.7MB

Download
memory/1052-63-0x000000006FF80000-0x000000007052B000-memory.dmp

Filesize
5.7MB

Download
memory/1052-62-0x000000006FF80000-0x000000007052B000-memory.dmp

Filesize
5.7MB

Download
memory/1356-75-0x0000000000429CFE-mapping.dmp

Download
memory/1356-72-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1356-77-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1356-74-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1356-79-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1356-73-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1356-70-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1356-69-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1488-57-0x0000000000640000-0x0000000000680000-memory.dmp

Filesize
256KB

Download
memory/1488-54-0x0000000000FC0000-0x0000000000FD2000-memory.dmp

Filesize
72KB

Download
memory/1488-56-0x0000000005780000-0x00000000057FA000-memory.dmp

Filesize
488KB

Download
memory/1488-55-0x0000000075271000-0x0000000075273000-memory.dmp

Filesize
8KB

Download
memory/1488-58-0x0000000000A30000-0x0000000000A7C000-memory.dmp

Filesize
304KB

Download
memory/1728-68-0x000000006FFA0000-0x000000007054B000-memory.dmp

Filesize
5.7MB

Download
memory/1728-67-0x000000006FFA0000-0x000000007054B000-memory.dmp

Filesize
5.7MB

Download
memory/1728-64-0x0000000000000000-mapping.dmp

Download

Analysis

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