c41e2b90a4399ba3acc080209773efa22f75c3b81349d1c8dbdc1d7442efc829

Analysis

max time kernel
140s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-07-2024 05:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

5a8fd1c737d2c13ec72f9b6754e888c9_JaffaCakes118.dll
Size

40KB
MD5

5a8fd1c737d2c13ec72f9b6754e888c9
SHA1

481df0d3aaafef9ee49133b24dd2cb6d29734e1f
SHA256

c41e2b90a4399ba3acc080209773efa22f75c3b81349d1c8dbdc1d7442efc829
SHA512

8057e6be6af279a63c6605853526497d1cf6fd50a807cfc142a3f20792adf9d64725dff47868d4631f73cb43b8203f06129c87078656feb66b659278148891c6
SSDEEP

768:Q35yKut93kAQX3TECskY5tAVlWGIfdxBcUL5Xn26Vs7zgD8FvxTFq:Q3IKzXzJskY5tFG+x0NIDQxM

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

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

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\linkinfo.dll1599225878	rundll32.exe
File created	C:\Windows\linkinfo.dll	rundll32.exe
File created	C:\Windows\twain_86.dll	rundll32.exe
File opened for modification	C:\Windows\clbcatq.dll352676458	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2144	2168	rundll32.exe	31
PID 2168 wrote to memory of 2144	2168	rundll32.exe	31
PID 2168 wrote to memory of 2144	2168	rundll32.exe	31
PID 2168 wrote to memory of 2144	2168	rundll32.exe	31
PID 2168 wrote to memory of 2144	2168	rundll32.exe	31
PID 2168 wrote to memory of 2144	2168	rundll32.exe	31
PID 2168 wrote to memory of 2144	2168	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a8fd1c737d2c13ec72f9b6754e888c9_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a8fd1c737d2c13ec72f9b6754e888c9_JaffaCakes118.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Drops file in Windows directory
  PID:2144

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2144-0-0x0000000013142000-0x0000000013146000-memory.dmp

Filesize
16KB

Download
memory/2144-3-0x0000000013140000-0x000000001314E000-memory.dmp

Filesize
56KB

Download
memory/2144-6-0x0000000013142000-0x0000000013146000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads