d0d0a1953bfe1c7b3b6f26e8fc3abef6a2c2443b2b4ac0a386d831c36ed297de

Analysis

max time kernel
93s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 17:31

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General

Target

35be1e86f39e98fd63985e4ec273f22c_JaffaCakes118.dll
Size

538KB
MD5

35be1e86f39e98fd63985e4ec273f22c
SHA1

cbb2fb8d2dc800972a3680435fb88f152344749c
SHA256

d0d0a1953bfe1c7b3b6f26e8fc3abef6a2c2443b2b4ac0a386d831c36ed297de
SHA512

71127c4b6c68503932699f27dd6e2ff7beb4d919a4639718d63b553230d0a542e154969b6124b94f50a43014448fdad1a72a17b20f4dfa3cade3465df60e9e86
SSDEEP

12288:DSgSOe69z0dIt5pZWfXgylxlfMhFGxQaFT34TpZs0eQZuooZtUMBvMP:GgSOBpjyXgMfMh8xQM74tZs0eQiUMBkP

Score

8^/10

bootkit persistence

Malware Config

Signatures

Blocklisted process makes network request 4 IoCs

flow	pid	Process
9	5060	rundll32.exe
15	5060	rundll32.exe
16	5060	rundll32.exe
17	5060	rundll32.exe

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3636	5060	WerFault.exe	81

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9B7A98EC-7EF9-468c-ACC8-37C793DBD7E0}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9B7A98EC-7EF9-468c-ACC8-37C793DBD7E0}\Implemented Categories	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9B7A98EC-7EF9-468c-ACC8-37C793DBD7E0}\Implemented Categories\{A5F7140E-4311-4ef9-AABC-F55941B5EBE5}\idex = "5fe9d88be36d376aace0eaa03bbaf0b1"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79B5BC47-CEA1-4772-B433-7D1B3139F278}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79B5BC47-CEA1-4772-B433-7D1B3139F278}\Implemented Categories	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79B5BC47-CEA1-4772-B433-7D1B3139F278}\Implemented Categories\{607568DD-B059-434b-B7E7-38EC51998F8E}\did = "21B28DB4E9A2C692FD88646B6BB1A490"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9B7A98EC-7EF9-468c-ACC8-37C793DBD7E0}\Implemented Categories\{A5F7140E-4311-4ef9-AABC-F55941B5EBE5}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9B7A98EC-7EF9-468c-ACC8-37C793DBD7E0}\Implemented Categories\{A5F7140E-4311-4ef9-AABC-F55941B5EBE5}\idno = "1"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79B5BC47-CEA1-4772-B433-7D1B3139F278}\Implemented Categories\{607568DD-B059-434b-B7E7-38EC51998F8E}	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 5060	4732	rundll32.exe	81
PID 4732 wrote to memory of 5060	4732	rundll32.exe	81
PID 4732 wrote to memory of 5060	4732	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\35be1e86f39e98fd63985e4ec273f22c_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4732
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\35be1e86f39e98fd63985e4ec273f22c_JaffaCakes118.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Writes to the Master Boot Record (MBR)
  - Modifies registry class
  PID:5060
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 708
    3⤵
    - Program crash
    PID:3636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5060 -ip 5060
1⤵
PID:1788

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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