f39adc7a86beff3966a84104d7b9d1e2481f88350f866d0ff5a5c6dd651376ac

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/10/2024, 12:36

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General

Target

05d7d49c9858e1d1c1970d82b9907eda_JaffaCakes118.dll
Size

52KB
MD5

05d7d49c9858e1d1c1970d82b9907eda
SHA1

3bf435db1f6a18439d875ae83a0b3f62d36cf644
SHA256

f39adc7a86beff3966a84104d7b9d1e2481f88350f866d0ff5a5c6dd651376ac
SHA512

f73b80bba7a06e80c3b4b69480b0b011bf7d855790aa407e33201b405af8de50f7d6f4be9c7ef14101a49d54b8ffbc61cece6d363098887bb7b7796a43c45bc4
SSDEEP

1536:7Oatzw9ewxyM6z5cimC85L0YiPUykwSatAFe:ZtMN617+L7wSatke

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 6 IoCs

pid	Process
3052	rundll32.exe
3052	rundll32.exe
3052	rundll32.exe
3052	rundll32.exe
3052	rundll32.exe
3052	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\mvscrtz.dll	rundll32.exe
File opened for modification	C:\Windows\system\mvscrtz.dll	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{55CEE3FA-6DFB-4bc4-B63D-9EA3B63B8527} = "05d7d49c9858e1d1c1970d82b9907eda_JaffaCakes118.dll,1269223723,-1113147180,1942074416"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3052	rundll32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2300	1620	rundll32.exe	30
PID 1620 wrote to memory of 2300	1620	rundll32.exe	30
PID 1620 wrote to memory of 2300	1620	rundll32.exe	30
PID 1620 wrote to memory of 2300	1620	rundll32.exe	30
PID 1620 wrote to memory of 2300	1620	rundll32.exe	30
PID 1620 wrote to memory of 2300	1620	rundll32.exe	30
PID 1620 wrote to memory of 2300	1620	rundll32.exe	30
PID 2300 wrote to memory of 3052	2300	rundll32.exe	31
PID 2300 wrote to memory of 3052	2300	rundll32.exe	31
PID 2300 wrote to memory of 3052	2300	rundll32.exe	31
PID 2300 wrote to memory of 3052	2300	rundll32.exe	31
PID 2300 wrote to memory of 3052	2300	rundll32.exe	31
PID 2300 wrote to memory of 3052	2300	rundll32.exe	31
PID 2300 wrote to memory of 3052	2300	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\05d7d49c9858e1d1c1970d82b9907eda_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\05d7d49c9858e1d1c1970d82b9907eda_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 shell32,Control_RunDLL "C:\Windows\system\mvscrtz.dll"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\system\mvscrtz.dll

Filesize
52KB

MD5
05d7d49c9858e1d1c1970d82b9907eda

SHA1
3bf435db1f6a18439d875ae83a0b3f62d36cf644

SHA256
f39adc7a86beff3966a84104d7b9d1e2481f88350f866d0ff5a5c6dd651376ac

SHA512
f73b80bba7a06e80c3b4b69480b0b011bf7d855790aa407e33201b405af8de50f7d6f4be9c7ef14101a49d54b8ffbc61cece6d363098887bb7b7796a43c45bc4

Download Submit
memory/2300-0-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/2300-15-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3052-11-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3052-14-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3052-12-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3052-10-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3052-9-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download
memory/3052-16-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download