bddc6e8a01b0b8e4b80baa7010b378d75964691877161523c92a6311e69954b0

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 21:17

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General

Target

1cb86d0e62208d4f5718d8200418b4e2.dll
Size

72KB
MD5

1cb86d0e62208d4f5718d8200418b4e2
SHA1

479f9651a37691e0adf262308cd97fa5e0e835a2
SHA256

bddc6e8a01b0b8e4b80baa7010b378d75964691877161523c92a6311e69954b0
SHA512

77e749c7fc7d07a44d83dfeccac7692ac62909072b681c3b289977e006c40ecb9c89248d43b767f345f794b852042c3ceaa3c052b584b0ccc95a81d9aa274ef4
SSDEEP

768:1iihFTz7bnpvSv0YMwTCco/pa5EFdTxVzzzvfABOb784Nyyfk0NdkQew9jWojLEt:RhF/pvOVCcp5EFdld3o4tk0EMyoLr4x

Score

6^/10

bootkit discovery persistence

Malware Config

Signatures

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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 behavior: EnumeratesProcesses 1 IoCs

pid	Process
2148	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2148	2364	rundll32.exe	16
PID 2364 wrote to memory of 2148	2364	rundll32.exe	16
PID 2364 wrote to memory of 2148	2364	rundll32.exe	16
PID 2364 wrote to memory of 2148	2364	rundll32.exe	16
PID 2364 wrote to memory of 2148	2364	rundll32.exe	16
PID 2364 wrote to memory of 2148	2364	rundll32.exe	16
PID 2364 wrote to memory of 2148	2364	rundll32.exe	16

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1cb86d0e62208d4f5718d8200418b4e2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1cb86d0e62208d4f5718d8200418b4e2.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:2148

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

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2148-1-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

Download
memory/2148-0-0x0000000000100000-0x000000000010A000-memory.dmp

Filesize
40KB

Download