98baacd2e79fec0abb89cab6f91c80cedbf7fe28187732f1353c2d8056c9e5ae

Analysis

max time kernel
148s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
19-04-2024 19:44

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General

Target

fb08fa2dbb00f4aa868eaa93c0603e55_JaffaCakes118.dll
Size

262KB
MD5

fb08fa2dbb00f4aa868eaa93c0603e55
SHA1

aed6ca6891c504036b95f9cc9052098f811edfb2
SHA256

98baacd2e79fec0abb89cab6f91c80cedbf7fe28187732f1353c2d8056c9e5ae
SHA512

6781085e9faf66728f0a64a3fe622e93835f020e347cf83a042d3dc44d2e7c22364fd00bbac60388e595439f2931fa33e770013706cb604568d8ade948e752a5
SSDEEP

6144:qcfdYhUWloOts1U0S6fZQEWXkgjXrY5ejSKWdX:9MplPIXQEWXkwYYjJWdX

Score

6^/10

bootkit 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\”ð'311097-63 rundll32.exe
File created C:\Windows\SysWOW64\0aeb rundll32.exe

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

description	ioc	process
File created	C:\Windows\SysWOW64\”ð'311097-63	rundll32.exe
File created	C:\Windows\SysWOW64\0aeb	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2332 wrote to memory of 1708	2332	rundll32.exe	rundll32.exe
PID 2332 wrote to memory of 1708	2332	rundll32.exe	rundll32.exe
PID 2332 wrote to memory of 1708	2332	rundll32.exe	rundll32.exe
PID 2332 wrote to memory of 1708	2332	rundll32.exe	rundll32.exe
PID 2332 wrote to memory of 1708	2332	rundll32.exe	rundll32.exe
PID 2332 wrote to memory of 1708	2332	rundll32.exe	rundll32.exe
PID 2332 wrote to memory of 1708	2332	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb08fa2dbb00f4aa868eaa93c0603e55_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2332

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb08fa2dbb00f4aa868eaa93c0603e55_JaffaCakes118.dll,#1
2⤵
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
PID:1708

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1708-0-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/1708-1-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/1708-2-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/1708-5-0x0000000000180000-0x0000000000182000-memory.dmp

Filesize
8KB

Download
memory/1708-6-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/1708-7-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download
memory/1708-8-0x0000000010000000-0x00000000100A5000-memory.dmp

Filesize
660KB

Download