b70f413f99cc6c07fba7cb04d61087cceaadfa23c4cec28495e2ed1ef3787b5d

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 05:12

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General

Target

bdbea7a9d6f6312aeb4e88c5b2411fca.dll
Size

68KB
MD5

bdbea7a9d6f6312aeb4e88c5b2411fca
SHA1

2052dea30e21ea4919b8b5b6705ceae833fc4e8d
SHA256

b70f413f99cc6c07fba7cb04d61087cceaadfa23c4cec28495e2ed1ef3787b5d
SHA512

abd6b83e85859c6930047ca01fdf5ad26e629dba4d3060c3e31356dff6dd101558fc88546d1dc33161d14eb85ae4bdbb87ca73a88293a5f9aeeffdf99c7fb92c
SSDEEP

1536:flZXIPG0YmmmrCuYtBJNVJE/aToBwDFNusQT:tZYPBYmmmrCuYtBJHJE/IoBwZNJQT

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
1260	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 1260	912	rundll32.exe	28
PID 912 wrote to memory of 1260	912	rundll32.exe	28
PID 912 wrote to memory of 1260	912	rundll32.exe	28
PID 912 wrote to memory of 1260	912	rundll32.exe	28
PID 912 wrote to memory of 1260	912	rundll32.exe	28
PID 912 wrote to memory of 1260	912	rundll32.exe	28
PID 912 wrote to memory of 1260	912	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdbea7a9d6f6312aeb4e88c5b2411fca.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:912
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdbea7a9d6f6312aeb4e88c5b2411fca.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:1260

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/1260-0-0x00000000001F0000-0x00000000001FA000-memory.dmp

Filesize
40KB

Download
memory/1260-1-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

Download
memory/1260-4-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

Download