aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6

General

Target
aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe
Size 170KB
Sample220220-d2ntjagcd2
SHA256 aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6
MD5 0e53108935aa122b8faeda0de6fae8bd
SHA1 fd7491b116e3695b832c171b6c003773fa95342b
SHA512 df74ad57514cf8866a738f7ab3058a51f3ca7450bc63affc0ff05facc1e43e5d19dc1f23daa0ec7fc03312eacff2ff9e1233e6e420935365a260babc93d0d3d4
MD5 SHA1 SHA512

Score

7^/10

persistence

Malware Config

Signatures

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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe"	reg.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 2 IoCs

pid	Process
4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe
4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 1400	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe	82
PID 4632 wrote to memory of 1400	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe	82
PID 4632 wrote to memory of 2268	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe	59
PID 1400 wrote to memory of 1076	1400	cmd.exe	84
PID 1400 wrote to memory of 1076	1400	cmd.exe	84
PID 4632 wrote to memory of 2288	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe	58
PID 4632 wrote to memory of 2412	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe	30
PID 4632 wrote to memory of 2660	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe	54
PID 4632 wrote to memory of 3204	4632	aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe	53

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2412

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3204

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:2660

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2288

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2268

C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe
"C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1400
- - C:\Windows\system32\reg.exe
    REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe" /f
    3⤵
    - Adds Run key to start application
    PID:1076

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/2268-130-0x00007FF700FF0000-0x00007FF70137E000-memory.dmp

Download

memory/2660-131-0x00007FF700FF0000-0x00007FF70137E000-memory.dmp