4638c77bbe4fe83bf719d3f5c618ce3a4d58bdf4e13db3acc80406b84b3548c7

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 05:25

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General

Target

0ff296657aaab07dda3f75f6aa2f20b4.dll
Size

80KB
MD5

0ff296657aaab07dda3f75f6aa2f20b4
SHA1

ed960a8804bab2625c2605d833fff1173f6935e8
SHA256

4638c77bbe4fe83bf719d3f5c618ce3a4d58bdf4e13db3acc80406b84b3548c7
SHA512

3957ef49938548931d21c32034256d25bf932931363e733d19aa82e596266ae4398cac9d0ab5719f8f5d3a57e0d0c90df43ccdf6660bfc9f115e81a68592dfd7
SSDEEP

1536:8SjmzUFWbuhuEoZL3xjGupGDiUV9e8GVkK:8Sc5buhuEAL3xauWioe8GVk

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
2360	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2360	3028	rundll32.exe	28
PID 3028 wrote to memory of 2360	3028	rundll32.exe	28
PID 3028 wrote to memory of 2360	3028	rundll32.exe	28
PID 3028 wrote to memory of 2360	3028	rundll32.exe	28
PID 3028 wrote to memory of 2360	3028	rundll32.exe	28
PID 3028 wrote to memory of 2360	3028	rundll32.exe	28
PID 3028 wrote to memory of 2360	3028	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ff296657aaab07dda3f75f6aa2f20b4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ff296657aaab07dda3f75f6aa2f20b4.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:2360

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/2360-0-0x0000000000160000-0x000000000016A000-memory.dmp

Filesize
40KB

Download
memory/2360-1-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

Download