3ec441b6dc306bdfa2a098d7949764cd3d450805709c9c1320ceb946913ddf92

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
03/01/2024, 14:21

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General

Target

WinLockDLL.dll
Size

771KB
MD5

efcf37a1d1a3316d8b69955d2e8088d6
SHA1

5b5261f487c2c54220a454297c163246c1fa4c58
SHA256

813459d87bf76c4c1162f8a5ae9281cf68bfa667de09798dcef97f31235fc890
SHA512

f512315f0fadad5deefa0e137cdced246f82b59d788a8e0d1c798cadfa70cff0d78611e904d89f328d014b72ad1db02023b8d3b76e6d9a5adfe6bd4754c1f37d
SSDEEP

24576:0/7/SfyU+BmVkbxENDetsMSYtcHNT66S/:nfyskbxPHSBHN26S/

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2980	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2980	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2980	2916	rundll32.exe	11
PID 2916 wrote to memory of 2980	2916	rundll32.exe	11
PID 2916 wrote to memory of 2980	2916	rundll32.exe	11
PID 2916 wrote to memory of 2980	2916	rundll32.exe	11
PID 2916 wrote to memory of 2980	2916	rundll32.exe	11
PID 2916 wrote to memory of 2980	2916	rundll32.exe	11
PID 2916 wrote to memory of 2980	2916	rundll32.exe	11

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\WinLockDLL.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\WinLockDLL.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:2980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2980-0-0x00000000748F0000-0x0000000074AA6000-memory.dmp

Filesize
1.7MB

Download
memory/2980-1-0x0000000074900000-0x0000000074AB6000-memory.dmp

Filesize
1.7MB

Download
memory/2980-2-0x0000000074900000-0x0000000074AB6000-memory.dmp

Filesize
1.7MB

Download
memory/2980-3-0x0000000077450000-0x0000000077452000-memory.dmp

Filesize
8KB

Download
memory/2980-4-0x0000000077440000-0x00000000775C0000-memory.dmp

Filesize
1.5MB

Download
memory/2980-5-0x0000000077440000-0x00000000775C0000-memory.dmp

Filesize
1.5MB

Download