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

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

Processes:

V-M_2022.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	V-M_2022.exe

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-1-5-21-1809750270-3141839489-3074374771-1000\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 2176 set thread context of 4700 2176 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 6 IoCs

Processes:

powershell.exepowershell.exeV-M_2022.exe

pid process

1316 powershell.exe
1316 powershell.exe
216 powershell.exe
216 powershell.exe
2176 V-M_2022.exe
2176 V-M_2022.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

V-M_2022.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2176 V-M_2022.exe
Token: SeDebugPrivilege 1316 powershell.exe
Token: SeDebugPrivilege 216 powershell.exe

description	pid	process	target process
PID 2176 set thread context of 4700	2176	V-M_2022.exe	InstallUtil.exe

pid	process
1316	powershell.exe
1316	powershell.exe
216	powershell.exe
216	powershell.exe
2176	V-M_2022.exe
2176	V-M_2022.exe

description	pid	process
Token: SeDebugPrivilege	2176	V-M_2022.exe
Token: SeDebugPrivilege	1316	powershell.exe
Token: SeDebugPrivilege	216	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

V-M_2022.exe

description	pid	process	target process
PID 2176 wrote to memory of 1316	2176	V-M_2022.exe	powershell.exe
PID 2176 wrote to memory of 1316	2176	V-M_2022.exe	powershell.exe
PID 2176 wrote to memory of 1316	2176	V-M_2022.exe	powershell.exe
PID 2176 wrote to memory of 216	2176	V-M_2022.exe	powershell.exe
PID 2176 wrote to memory of 216	2176	V-M_2022.exe	powershell.exe
PID 2176 wrote to memory of 216	2176	V-M_2022.exe	powershell.exe
PID 2176 wrote to memory of 4700	2176	V-M_2022.exe	InstallUtil.exe
PID 2176 wrote to memory of 4700	2176	V-M_2022.exe	InstallUtil.exe
PID 2176 wrote to memory of 4700	2176	V-M_2022.exe	InstallUtil.exe
PID 2176 wrote to memory of 4700	2176	V-M_2022.exe	InstallUtil.exe
PID 2176 wrote to memory of 4700	2176	V-M_2022.exe	InstallUtil.exe
PID 2176 wrote to memory of 4700	2176	V-M_2022.exe	InstallUtil.exe
PID 2176 wrote to memory of 4700	2176	V-M_2022.exe	InstallUtil.exe
PID 2176 wrote to memory of 4700	2176	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⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176

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:1316

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:216

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:4700

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
1KB

MD5
4280e36a29fa31c01e4d8b2ba726a0d8

SHA1
c485c2c9ce0a99747b18d899b71dfa9a64dabe32

SHA256
e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

SHA512
494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
Filesize
53KB

MD5
06ad34f9739c5159b4d92d702545bd49

SHA1
9152a0d4f153f3f40f7e606be75f81b582ee0c17

SHA256
474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

SHA512
c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
16KB

MD5
c531f282a9b49fb187637fccf5815332

SHA1
14222233ff0e88f31c900ff6b4f90d440e60706a

SHA256
1fb7256213464c42b54a6c502a5a6bd0fc2df6a26b5545205cc69689cee1ead3

SHA512
4b31c365624620ebf1341aed781558a43f5a3d8ee5d451e439fa46ce5500607f00e68e6948a12bb0f753ca2d89160a0c5db19d77867a6328d6c5b11118ada04d

Download Submit
memory/216-148-0x0000000007A00000-0x0000000007A96000-memory.dmp

Filesize
600KB

Download
memory/216-149-0x00000000078F0000-0x00000000078FE000-memory.dmp

Filesize
56KB

Download
memory/216-151-0x0000000007960000-0x0000000007968000-memory.dmp

Filesize
32KB

Download
memory/216-150-0x0000000007980000-0x000000000799A000-memory.dmp

Filesize
104KB

Download
memory/216-147-0x0000000007690000-0x000000000769A000-memory.dmp

Filesize
40KB

Download
memory/216-146-0x0000000006A20000-0x0000000006A3E000-memory.dmp

Filesize
120KB

Download
memory/216-145-0x000000006F610000-0x000000006F65C000-memory.dmp

Filesize
304KB

Download
memory/216-140-0x0000000000000000-mapping.dmp

Download
memory/216-144-0x0000000007620000-0x0000000007652000-memory.dmp

Filesize
200KB

Download
memory/1316-132-0x0000000002940000-0x0000000002976000-memory.dmp

Filesize
216KB

Download
memory/1316-131-0x0000000000000000-mapping.dmp

Download
memory/1316-133-0x00000000054A0000-0x0000000005AC8000-memory.dmp

Filesize
6.2MB

Download
memory/1316-139-0x0000000006730000-0x000000000674A000-memory.dmp

Filesize
104KB

Download
memory/1316-138-0x00000000078B0000-0x0000000007F2A000-memory.dmp

Filesize
6.5MB

Download
memory/1316-137-0x0000000006220000-0x000000000623E000-memory.dmp

Filesize
120KB

Download
memory/1316-134-0x00000000052A0000-0x00000000052C2000-memory.dmp

Filesize
136KB

Download
memory/1316-136-0x0000000005BC0000-0x0000000005C26000-memory.dmp

Filesize
408KB

Download
memory/1316-135-0x0000000005AD0000-0x0000000005B36000-memory.dmp

Filesize
408KB

Download
memory/2176-130-0x0000000000010000-0x0000000000022000-memory.dmp

Filesize
72KB

Download
memory/4700-152-0x0000000000000000-mapping.dmp

Download
memory/4700-153-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads