fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0

Reason

Machine shutdown

General

Target

fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe
Size

192KB
MD5

9e8baf127b832943d4fae218ce90191a
SHA1

449e6f1c2c79cb0ee4d43151bcaa6ecfd38efa70
SHA256

fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0
SHA512

9af9e3e30c34ecad41277c0bb8e27eabaf7fa05249153ffac20262af4ed3680a5a85cc5c192b04b3da3835396ef68e4e4a8b9123c663d8cf2f3a8681db7f8114
SSDEEP

6144:b05H0JNb+gzTy9ZRTbPG9rYxf2hnbSayKTTfq+T/ur:A+uHG9rYxf2hnbSayKTTfq+T/ur

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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yar = "C:\\Users\\Admin\\AppData\\Roaming\\yar.exe"	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job

T1053

pid	Process
3972	schtasks.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "237"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe
Token: SeDebugPrivilege	1724	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe
Token: SeShutdownPrivilege	4480	shutdown.exe
Token: SeRemoteShutdownPrivilege	4480	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4640	LogonUI.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 3972	1724	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe	93
PID 1724 wrote to memory of 3972	1724	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe	93
PID 1724 wrote to memory of 4480	1724	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe	98
PID 1724 wrote to memory of 4480	1724	fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe	98

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe
"C:\Users\Admin\AppData\Local\Temp\fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "yar" /tr "C:\Users\Admin\AppData\Roaming\yar.exe"
  2⤵
  - Creates scheduled task(s)
  PID:3972
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4480

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3958055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1724-0-0x00007FFB22813000-0x00007FFB22815000-memory.dmp

Filesize
8KB

Download
memory/1724-1-0x00000000009A0000-0x00000000009D8000-memory.dmp

Filesize
224KB

Download
memory/1724-2-0x0000000001180000-0x0000000001186000-memory.dmp

Filesize
24KB

Download
memory/1724-3-0x00007FFB22810000-0x00007FFB232D1000-memory.dmp

Filesize
10.8MB

Download
memory/1724-5-0x00007FFB22810000-0x00007FFB232D1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads