f603d1032fb895d4c30820947a38c1222a64dc4ea41d2d5008d2e6c2af804acd

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29-08-2024 11:39

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General

Target

c8bf39ab87a340a9a6bb1e8d0744afae_JaffaCakes118.dll
Size

466KB
MD5

c8bf39ab87a340a9a6bb1e8d0744afae
SHA1

b7ee60cc108efb0598e52376a177f42e12e0ff7e
SHA256

f603d1032fb895d4c30820947a38c1222a64dc4ea41d2d5008d2e6c2af804acd
SHA512

6a0a33dc51fd3cf09514380b7bff83983ae98329bee84bfc20985179d44fafa3ba2d9ce5eed26d1e8d00f8101a1607b198c3fe9c57a8dd27eabdef880b97d5bf
SSDEEP

12288:ZxxUSrr2Y2UwAzdWqnJ7nyF48x1aB5shUJ0XCh17:ZxuY2HAxWuxyb7aB5IUJnh17

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

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\4-10312-105	rundll32.exe
File created	C:\Windows\SysWOW64\031	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 use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 1584	2244	rundll32.exe	30
PID 2244 wrote to memory of 1584	2244	rundll32.exe	30
PID 2244 wrote to memory of 1584	2244	rundll32.exe	30
PID 2244 wrote to memory of 1584	2244	rundll32.exe	30
PID 2244 wrote to memory of 1584	2244	rundll32.exe	30
PID 2244 wrote to memory of 1584	2244	rundll32.exe	30
PID 2244 wrote to memory of 1584	2244	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8bf39ab87a340a9a6bb1e8d0744afae_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8bf39ab87a340a9a6bb1e8d0744afae_JaffaCakes118.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:1584

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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