8455ca5eb48fdb97e6cee33cc734eb03d43f2c28daacdf24de5fd273724b7479

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 13:35

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General

Target

b1927a7416f9dbef41e6195ba0f3ebc2_JaffaCakes118.dll
Size

218KB
MD5

b1927a7416f9dbef41e6195ba0f3ebc2
SHA1

89d9d9cd966a4391dfee78d63c82fa5b928ee5bb
SHA256

8455ca5eb48fdb97e6cee33cc734eb03d43f2c28daacdf24de5fd273724b7479
SHA512

31f37591335672b42143f9b5681caac1d860d5c7fc3d8b865c558704d74a2cb488345efb74b371ea88bb312652ad9c1c90a361b48bf052bec7fd57df146cf3ca
SSDEEP

6144:KBuw0Ao3vN57IjJtG2hn8mYe7jiP/yr/4FCOvOC:dAofN5E5p8mYe7ju/yrwFCuOC

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\9585-493	rundll32.exe
File created	C:\Windows\SysWOW64\1b52	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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 2676 wrote to memory of 3404	2676	rundll32.exe	83
PID 2676 wrote to memory of 3404	2676	rundll32.exe	83
PID 2676 wrote to memory of 3404	2676	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1927a7416f9dbef41e6195ba0f3ebc2_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1927a7416f9dbef41e6195ba0f3ebc2_JaffaCakes118.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3404

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/3404-0-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/3404-1-0x0000000001FC0000-0x0000000001FC2000-memory.dmp

Filesize
8KB

Download
memory/3404-5-0x0000000001FC0000-0x0000000001FC2000-memory.dmp

Filesize
8KB

Download
memory/3404-4-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/3404-6-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/3404-7-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download