550bcd04af90a32702e1b7dc87d3f51c33e013bf21bbc7029921607510e3af4f

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01/10/2024, 04:21

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General

Target

550bcd04af90a32702e1b7dc87d3f51c33e013bf21bbc7029921607510e3af4fN.dll
Size

68KB
MD5

fbb00b965aee4f0f07f5cd25c6a54e30
SHA1

c1777a2f6e62a3e1c59d8c92ea8a97c9b3cee8f3
SHA256

550bcd04af90a32702e1b7dc87d3f51c33e013bf21bbc7029921607510e3af4f
SHA512

610e9609cdfea2e8461ec21b1a30432a1c533ab3d76b991b21a2f8a47e4729e712019759c8020930ee6912da763863ad077ba9c0504bea214b38ceb18c1a8989
SSDEEP

1536:yxx6Wuq76LBIQ9VDbFELTbCc3lbOQrP7U3WojV1aL:yxxJuE6LKQ9VVEWc3lbLrPVSV1aL

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

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2160	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2160	1992	rundll32.exe	30
PID 1992 wrote to memory of 2160	1992	rundll32.exe	30
PID 1992 wrote to memory of 2160	1992	rundll32.exe	30
PID 1992 wrote to memory of 2160	1992	rundll32.exe	30
PID 1992 wrote to memory of 2160	1992	rundll32.exe	30
PID 1992 wrote to memory of 2160	1992	rundll32.exe	30
PID 1992 wrote to memory of 2160	1992	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\550bcd04af90a32702e1b7dc87d3f51c33e013bf21bbc7029921607510e3af4fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\550bcd04af90a32702e1b7dc87d3f51c33e013bf21bbc7029921607510e3af4fN.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2160

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2160-0-0x0000000000170000-0x0000000000178000-memory.dmp

Filesize
32KB

Download
memory/2160-3-0x0000000000170000-0x0000000000178000-memory.dmp

Filesize
32KB

Download