2622b9248d2b664b84467842164ee96988504ac90be4d504b7e07352773823ec

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-11-2024 07:50

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General

Target

8446e576af14fe5658fe3a17075d3539_JaffaCakes118.dll
Size

278KB
MD5

8446e576af14fe5658fe3a17075d3539
SHA1

91eca0d53304343d7af691ec002a159176c94c47
SHA256

2622b9248d2b664b84467842164ee96988504ac90be4d504b7e07352773823ec
SHA512

97de7708df540b537919491a31b292be5ac59979b6b7a069e214f86196d45f0bb69738a605b9655ad14501d7706638e0526484c712042ea5d688743c73ad9947
SSDEEP

6144:3pZkIBeIAnBTays4Fm6VvCWf/iMpMS/cf2Ox4YqkHf73pS2fLPSqD:peIAnBT/w6V6k/iqMSkf2m4YqkHf73pv

Score

6^/10

bootkit discovery 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

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PhysicalDrive0 rundll32.exe
Drops file in System32 directory 2 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\-4040-736 rundll32.exe
File created C:\Windows\SysWOW64\100c 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

Processes:

rundll32.exe

description ioc process

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

description	ioc	process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

description	ioc	process
File created	C:\Windows\SysWOW64\-4040-736	rundll32.exe
File created	C:\Windows\SysWOW64\100c	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3672 wrote to memory of 4596	3672	rundll32.exe	rundll32.exe
PID 3672 wrote to memory of 4596	3672	rundll32.exe	rundll32.exe
PID 3672 wrote to memory of 4596	3672	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8446e576af14fe5658fe3a17075d3539_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3672

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8446e576af14fe5658fe3a17075d3539_JaffaCakes118.dll,#1
2⤵
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:4596

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

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/4596-0-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/4596-1-0x00000000008A0000-0x00000000008A2000-memory.dmp

Filesize
8KB

Download
memory/4596-5-0x00000000008A0000-0x00000000008A2000-memory.dmp

Filesize
8KB

Download
memory/4596-4-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/4596-6-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/4596-7-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download