bb81b7ee2f7a45c1d47ab1312886b7fe985cb4090b56fc216ba472486c430477

Analysis

max time kernel
5s
max time network
6s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 00:31

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Reason

Machine shutdown

Report Analysis Logs

General

Target

DEVIL.exe
Size

82KB
MD5

2150441385aa4c9a077161ba835ce528
SHA1

cdd37f20aefdf4cd804423d490067616ce6a1088
SHA256

bb81b7ee2f7a45c1d47ab1312886b7fe985cb4090b56fc216ba472486c430477
SHA512

22947ba02700422a8ffec4cad5306e4d041359b636f71b6547c64077296747f698c3d5f8bcaf8b19451b74180105cf57688f5bffbf5ce86fb951c2fc4e361174
SSDEEP

1536:QcpG/9Qa/9frl4yHoAhQUkvJlyloYJ2XStaIu2BgwtbN9ln0e7:Fs/qa/LBHiUkvpYJzdBgwVB7

Score

10^/10

evasion persistence ransomware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "empty"	DEVIL.exe

Disables Task Manager via registry modification
evasion

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\Desktop\Wallpaper	DEVIL.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1792	DEVIL.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	DEVIL.exe
Token: SeShutdownPrivilege	1680	shutdown.exe
Token: SeRemoteShutdownPrivilege	1680	shutdown.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 1680	1792	DEVIL.exe	30
PID 1792 wrote to memory of 1680	1792	DEVIL.exe	30
PID 1792 wrote to memory of 1680	1792	DEVIL.exe	30

C:\Users\Admin\AppData\Local\Temp\DEVIL.exe
"C:\Users\Admin\AppData\Local\Temp\DEVIL.exe"
1⤵
- Modifies WinLogon for persistence
- Sets desktop wallpaper using registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\System32\shutdown.exe
  "C:\Windows\System32\shutdown.exe" /r /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1680

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2924

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

memory/1792-0-0x000007FEF5D13000-0x000007FEF5D14000-memory.dmp

Filesize
4KB

Download
memory/1792-1-0x0000000001320000-0x000000000133A000-memory.dmp

Filesize
104KB

Download
memory/1792-2-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/1792-3-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/1792-4-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/1792-5-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/2924-6-0x0000000002F10000-0x0000000002F11000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads