0f04d67901cbdd7f63f9aaf7c5e8493e8d5f4347df701f214232c761d489aeba

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2022, 16:08

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General

Target
19ed13315f8b7604a36430175972454b.exe
Size 598KB
Sample220726-tk8qdabddl
SHA256 0f04d67901cbdd7f63f9aaf7c5e8493e8d5f4347df701f214232c761d489aeba
MD5 19ed13315f8b7604a36430175972454b
SHA1 00f8e9a3403782b763f816e951285ebfbad63ed9
SHA512 8131a09e83b44a9d43be9385aec698d51392996f472085dc3d1526239c5dd122665cc317d31b5a54df3abda66314120f83cffcf0b336490a55a78ce4941fe6a6
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-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation	19ed13315f8b7604a36430175972454b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gbxzfq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Bidbj\\Gbxzfq.exe\""	19ed13315f8b7604a36430175972454b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4744 set thread context of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84

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 9 IoCs

pid	Process
4744	19ed13315f8b7604a36430175972454b.exe
4480	powershell.exe
4480	powershell.exe
4744	19ed13315f8b7604a36430175972454b.exe
4744	19ed13315f8b7604a36430175972454b.exe
4744	19ed13315f8b7604a36430175972454b.exe
4744	19ed13315f8b7604a36430175972454b.exe
4744	19ed13315f8b7604a36430175972454b.exe
4744	19ed13315f8b7604a36430175972454b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4744	19ed13315f8b7604a36430175972454b.exe
Token: SeDebugPrivilege	4480	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1204	InstallUtil.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 4480	4744	19ed13315f8b7604a36430175972454b.exe	78
PID 4744 wrote to memory of 4480	4744	19ed13315f8b7604a36430175972454b.exe	78
PID 4744 wrote to memory of 4480	4744	19ed13315f8b7604a36430175972454b.exe	78
PID 4744 wrote to memory of 3732	4744	19ed13315f8b7604a36430175972454b.exe	83
PID 4744 wrote to memory of 3732	4744	19ed13315f8b7604a36430175972454b.exe	83
PID 4744 wrote to memory of 3732	4744	19ed13315f8b7604a36430175972454b.exe	83
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84
PID 4744 wrote to memory of 1204	4744	19ed13315f8b7604a36430175972454b.exe	84

C:\Users\Admin\AppData\Local\Temp\19ed13315f8b7604a36430175972454b.exe
"C:\Users\Admin\AppData\Local\Temp\19ed13315f8b7604a36430175972454b.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:4744
- 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:4480
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:3732
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1204

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1204-149-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1204-148-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/1204-147-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1204-146-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1204-145-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/4480-136-0x0000000002A30000-0x0000000002A66000-memory.dmp

Download

memory/4480-140-0x0000000005FF0000-0x000000000600E000-memory.dmp

Download

memory/4480-141-0x0000000007630000-0x0000000007CAA000-memory.dmp

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memory/4480-142-0x0000000006500000-0x000000000651A000-memory.dmp

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memory/4480-139-0x0000000005980000-0x00000000059E6000-memory.dmp

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memory/4480-138-0x0000000005820000-0x0000000005886000-memory.dmp

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memory/4480-137-0x00000000051F0000-0x0000000005818000-memory.dmp

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memory/4744-132-0x00000000007F0000-0x000000000088C000-memory.dmp

Download

memory/4744-134-0x00000000054A0000-0x00000000054C2000-memory.dmp

Download

memory/4744-133-0x00000000057C0000-0x0000000005D64000-memory.dmp

Download