326b511b15870560a1a02ec17652e3b7f3747bca39d1050b16b8102ea3cdc822

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 02:19

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General

Target

b5fa42d890caafc7d810f88ee277bafa_JaffaCakes118.dll
Size

213KB
MD5

b5fa42d890caafc7d810f88ee277bafa
SHA1

c1ae3b37d5163c3f93e71bd509421017527845de
SHA256

326b511b15870560a1a02ec17652e3b7f3747bca39d1050b16b8102ea3cdc822
SHA512

5b40fbcd49fff11375cd0b96ad55957ece006c96cc7498b37f4f96fc47e98b1defb9368d0fe9769c46f83a51bc717d29f963ecd0d4113719a9059fce828e8202
SSDEEP

6144:E3zTSA93TvkagFsLIHSk8NZHD2GSHe6ZXV:EDZ93jUsLIHSkAslj

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\4584-103-79	rundll32.exe
File created	C:\Windows\SysWOW64\8f88	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 3 IoCs

description	pid	Process	procid_target
PID 1140 wrote to memory of 4124	1140	rundll32.exe	84
PID 1140 wrote to memory of 4124	1140	rundll32.exe	84
PID 1140 wrote to memory of 4124	1140	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5fa42d890caafc7d810f88ee277bafa_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1140
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5fa42d890caafc7d810f88ee277bafa_JaffaCakes118.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:4124

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

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Downloads

memory/4124-0-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

Download
memory/4124-1-0x0000000000BE0000-0x0000000000BE2000-memory.dmp

Filesize
8KB

Download
memory/4124-5-0x0000000000BE0000-0x0000000000BE2000-memory.dmp

Filesize
8KB

Download
memory/4124-4-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

Download
memory/4124-6-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

Download
memory/4124-7-0x0000000010000000-0x0000000010111000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads