5677454eb78a84614f74908647124a2694f72a39c557b5c51a48cdafff4a224f

Analysis

max time kernel
141s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14/06/2024, 09:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
ogg.dll
Size 1.4MB
Sample240614-lebvfsvanc
SHA256 1fe79275e1f2c0f8727d6a06b4f1ee4f6c6297d2b13df59232d45c1c8f38ae64
MD5 c2d17ce369705c09eb1df4f1ba1fc71b
SHA1 bdbdd632f97df57e07933a7a788c50286c14567e
SHA512 87c3ad03c1ba9954775c47bb1386725db8d16ecd94de457d9034179c90de772dce2040c64ed66e9eb97d683a7086d7aef96a5bfdc669e4136beee552295dacb8
SSDEEP 24576:dI9vXhPu+/akwaBOkGEdm2AWE5nKxpXz/jn6JTT5ld0SrU:dIZX8aVntE5Kxhrn61/d0SA
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

bootkit persistence

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	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
2404	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3028	2404	WerFault.exe	28

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2404	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2404	1632	rundll32.exe	28
PID 1632 wrote to memory of 2404	1632	rundll32.exe	28
PID 1632 wrote to memory of 2404	1632	rundll32.exe	28
PID 1632 wrote to memory of 2404	1632	rundll32.exe	28
PID 1632 wrote to memory of 2404	1632	rundll32.exe	28
PID 1632 wrote to memory of 2404	1632	rundll32.exe	28
PID 1632 wrote to memory of 2404	1632	rundll32.exe	28
PID 2404 wrote to memory of 3028	2404	rundll32.exe	29
PID 2404 wrote to memory of 3028	2404	rundll32.exe	29
PID 2404 wrote to memory of 3028	2404	rundll32.exe	29
PID 2404 wrote to memory of 3028	2404	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ogg.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ogg.dll,#1
  2⤵
  - Drops file in Drivers directory
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 480
    3⤵
    - Program crash
    PID:3028

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

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2404-0-0x0000000074B30000-0x0000000074F81000-memory.dmp

Download

memory/2404-1-0x0000000074B50000-0x0000000074FA1000-memory.dmp

Download

memory/2404-3-0x0000000074B30000-0x0000000074F81000-memory.dmp

Download

memory/2404-2-0x00000000746F0000-0x0000000074B41000-memory.dmp

Download

memory/2404-6-0x0000000074B50000-0x0000000074FA1000-memory.dmp

Download

memory/2404-7-0x00000000746F0000-0x0000000074B41000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads