0b1f64cd1abb4b1d0ca2a14fb519350b773da73a1fb8e5d7ba9e284f53fbae17

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10/07/2024, 15:43

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General

Target

355c6d56f127f5fcd47810b8c7f70f4f_JaffaCakes118.dll
Size

25KB
MD5

355c6d56f127f5fcd47810b8c7f70f4f
SHA1

3d6678a674e1d1f0095e9c6c781407e070b6141c
SHA256

0b1f64cd1abb4b1d0ca2a14fb519350b773da73a1fb8e5d7ba9e284f53fbae17
SHA512

94d8dcfbd60b0513259b213d30342f2f3dfa9349095a608939f4a2f62d0fecbd6a1f36e4e5ab3ebc861f175cbc685f22a3044cc179dafe3511956593eda7dfd5
SSDEEP

768:6rHFI0/T/ltj9LEPgf2cTeXsulEt8f30MFseM:qHFJ3pLPf2qeXsoFFM

Score

7^/10

defense_evasion privilege_escalation

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2624	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe

Drops file in Windows directory 2 IoCs

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

Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
2624	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "355c6d56f127f5fcd47810b8c7f70f4f_JaffaCakes118.dll,1285097749,1563368310,-1814625877"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32	rundll32.exe
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

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe
2624	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 408 wrote to memory of 2100	408	rundll32.exe	82
PID 408 wrote to memory of 2100	408	rundll32.exe	82
PID 408 wrote to memory of 2100	408	rundll32.exe	82
PID 2100 wrote to memory of 2624	2100	rundll32.exe	84
PID 2100 wrote to memory of 2624	2100	rundll32.exe	84
PID 2100 wrote to memory of 2624	2100	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\355c6d56f127f5fcd47810b8c7f70f4f_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\355c6d56f127f5fcd47810b8c7f70f4f_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 "C:\Windows\msvcr.dll",_RunAs@0
    3⤵
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Access Token Manipulation: Create Process with Token
    - Suspicious behavior: EnumeratesProcesses
    PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Defense Evasion

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\msvcr.dll

Filesize
25KB

MD5
355c6d56f127f5fcd47810b8c7f70f4f

SHA1
3d6678a674e1d1f0095e9c6c781407e070b6141c

SHA256
0b1f64cd1abb4b1d0ca2a14fb519350b773da73a1fb8e5d7ba9e284f53fbae17

SHA512
94d8dcfbd60b0513259b213d30342f2f3dfa9349095a608939f4a2f62d0fecbd6a1f36e4e5ab3ebc861f175cbc685f22a3044cc179dafe3511956593eda7dfd5

Download Submit
memory/2100-0-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2100-6-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2624-5-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2624-7-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download