d2dbebaf7d20189a83c281bbab6cce71b8eb7859c09b8b09b3ebb23740dca1bb

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/04/2024, 03:24

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General

Target

prcdcdll.dll
Size

658KB
MD5

6b4e1f4cc56e621a18cfd0c7fe3aa12d
SHA1

f63bfd7e5b1e923927e1710ca87e3f76d2b6db4b
SHA256

39256ba5f33f4aa5500723b802e7d5785aca69405e15082690a39cbd8a3d6443
SHA512

fb221ae7aa3b29a6867315bbbb5f2d9dd10a06a1aecb6fdb818824f43d528005b3dadfe0a960e85fa5204b22ae7b26839dceebe9244e71b176366b7d8b5f8e9d
SSDEEP

12288:CVaiT/gvNP02dObHlNJYzXu7GOVmKNWPhdsbHMSNEv:0/gvB0bPmTuag9ufTIA

Score

6^/10

bootkit persistence

Malware Config

Signatures

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 WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2696	1740	rundll32.exe	28
PID 1740 wrote to memory of 2696	1740	rundll32.exe	28
PID 1740 wrote to memory of 2696	1740	rundll32.exe	28
PID 1740 wrote to memory of 2696	1740	rundll32.exe	28
PID 1740 wrote to memory of 2696	1740	rundll32.exe	28
PID 1740 wrote to memory of 2696	1740	rundll32.exe	28
PID 1740 wrote to memory of 2696	1740	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\prcdcdll.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\prcdcdll.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  PID:2696

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

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Downloads

memory/2696-10-0x0000000001CE0000-0x0000000001E37000-memory.dmp

Filesize
1.3MB

Download
memory/2696-9-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/2696-8-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2696-7-0x0000000002900000-0x0000000002903000-memory.dmp

Filesize
12KB

Download
memory/2696-6-0x0000000002910000-0x0000000002911000-memory.dmp

Filesize
4KB

Download
memory/2696-5-0x0000000002910000-0x0000000002911000-memory.dmp

Filesize
4KB

Download
memory/2696-4-0x0000000002910000-0x0000000002911000-memory.dmp

Filesize
4KB

Download
memory/2696-3-0x0000000001CE0000-0x0000000001E37000-memory.dmp

Filesize
1.3MB

Download
memory/2696-2-0x0000000001CE0000-0x0000000001E37000-memory.dmp

Filesize
1.3MB

Download
memory/2696-1-0x0000000001ED0000-0x0000000001FD7000-memory.dmp

Filesize
1.0MB

Download
memory/2696-0-0x0000000001CE0000-0x0000000001E37000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads