3f292af40ab69396b241af706e4a0573800ffabfd20d25f46ae04752912c150f

Reason

Machine shutdown

General

Target

a31ef9f516330e4b08bb800e815987aa.exe
Size

60KB
MD5

a31ef9f516330e4b08bb800e815987aa
SHA1

d0cfda0e27f6c86545182c06439000dcc07abe0d
SHA256

3f292af40ab69396b241af706e4a0573800ffabfd20d25f46ae04752912c150f
SHA512

4296984bcb53fe22ace2c309e1dd012f766c7d060042f21d66e7ad746cc76e43a6151c9daf47c5325b744cf2425aa6c97d6ab534575242a949db749fbac5381e
SSDEEP

1536:ZIeA7SppGJYwqqJc1f/oZQW7lQKdf0o+TBYQ5:SeA7Sptw3JAfmX6VYq

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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	a31ef9f516330e4b08bb800e815987aa.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-1-5-21-3844919115-497234255-166257750-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1987311981 = "C:\\Users\\Admin\\1987311981.exe"	reg.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	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\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	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\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "187"	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\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "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\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	216	a31ef9f516330e4b08bb800e815987aa.exe
Token: SeShutdownPrivilege	4876	shutdown.exe
Token: SeRemoteShutdownPrivilege	4876	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3248	LogonUI.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 216 wrote to memory of 968	216	a31ef9f516330e4b08bb800e815987aa.exe	85
PID 216 wrote to memory of 968	216	a31ef9f516330e4b08bb800e815987aa.exe	85
PID 216 wrote to memory of 968	216	a31ef9f516330e4b08bb800e815987aa.exe	85
PID 968 wrote to memory of 5016	968	cmd.exe	87
PID 968 wrote to memory of 5016	968	cmd.exe	87
PID 968 wrote to memory of 5016	968	cmd.exe	87
PID 216 wrote to memory of 4876	216	a31ef9f516330e4b08bb800e815987aa.exe	88
PID 216 wrote to memory of 4876	216	a31ef9f516330e4b08bb800e815987aa.exe	88
PID 216 wrote to memory of 4876	216	a31ef9f516330e4b08bb800e815987aa.exe	88
PID 216 wrote to memory of 3208	216	a31ef9f516330e4b08bb800e815987aa.exe	90
PID 216 wrote to memory of 3208	216	a31ef9f516330e4b08bb800e815987aa.exe	90
PID 216 wrote to memory of 3208	216	a31ef9f516330e4b08bb800e815987aa.exe	90

C:\Users\Admin\AppData\Local\Temp\a31ef9f516330e4b08bb800e815987aa.exe
"C:\Users\Admin\AppData\Local\Temp\a31ef9f516330e4b08bb800e815987aa.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:216
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1987311981 /t REG_SZ /d "%userprofile%\1987311981.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:968
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1987311981 /t REG_SZ /d "C:\Users\Admin\1987311981.exe" /f
    3⤵
    - Adds Run key to start application
    PID:5016
- C:\Windows\SysWOW64\shutdown.exe
  "C:\Windows\System32\shutdown.exe" /r /f /t 3
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A31EF9~1.EXE > nul
  2⤵
  PID:3208

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa398f855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3248

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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/216-0-0x0000000000880000-0x0000000000887000-memory.dmp

Filesize
28KB

Download
memory/216-2-0x00000000002A0000-0x00000000002BE000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads