e3577c7d8b7b4f8100e3e7d62fe1962e4bbd93ccd96f6d89e1558eacdaf719ec

Analysis

max time kernel
119s
max time network
147s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 02:57

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General

Target

0159696ef9569560cc2f46eb9fb05c10.dll
Size

1.8MB
MD5

0159696ef9569560cc2f46eb9fb05c10
SHA1

5a197d802bda39b326c4cde65b889eaa1a368595
SHA256

e3577c7d8b7b4f8100e3e7d62fe1962e4bbd93ccd96f6d89e1558eacdaf719ec
SHA512

f2f885512db3d1a4e68f0388174223c09a1156ca5a6e1245c4d92125ab1591a0e201c05a9116f9ec8f217c2faefe33d7d25092fafdb5a77de4396b017510aae0
SSDEEP

49152:Po/sJNMEMonM1ys4ZqfsAQERkZPY5gBGtkAEmiryEkaO5EkAU:Qs/znM1eqUQRSPY53tfCFkZOkAU

Score

9^/10

bootkit evasion persistence trojan

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-1-5-21-452311807-3713411997-1028535425-1000\Software\Wine	rundll32.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2780	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2780	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2780	2368	rundll32.exe	29
PID 2368 wrote to memory of 2780	2368	rundll32.exe	29
PID 2368 wrote to memory of 2780	2368	rundll32.exe	29
PID 2368 wrote to memory of 2780	2368	rundll32.exe	29
PID 2368 wrote to memory of 2780	2368	rundll32.exe	29
PID 2368 wrote to memory of 2780	2368	rundll32.exe	29
PID 2368 wrote to memory of 2780	2368	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0159696ef9569560cc2f46eb9fb05c10.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0159696ef9569560cc2f46eb9fb05c10.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Identifies Wine through registry keys
  - Checks whether UAC is enabled
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2780-0-0x0000000010000000-0x0000000010D1E000-memory.dmp

Filesize
13.1MB

Download
memory/2780-1-0x0000000010000000-0x0000000010D1E000-memory.dmp

Filesize
13.1MB

Download
memory/2780-2-0x0000000010000000-0x0000000010D1E000-memory.dmp

Filesize
13.1MB

Download
memory/2780-3-0x0000000010000000-0x0000000010D1E000-memory.dmp

Filesize
13.1MB

Download
memory/2780-4-0x0000000077890000-0x0000000077892000-memory.dmp

Filesize
8KB

Download
memory/2780-5-0x0000000010000000-0x0000000010D1E000-memory.dmp

Filesize
13.1MB

Download
memory/2780-6-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2780-7-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download