14a36ffc2deb188712193388b59c00f8a5a5d54b923e7df5d0839796f2eb09cf

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2024, 10:12

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f7c7390e02cfa60093ca875eac138311_JaffaCakes118.dll
Size

33KB
MD5

f7c7390e02cfa60093ca875eac138311
SHA1

2a457e3758437ba53b83682ffb31aab0b16e0ac7
SHA256

14a36ffc2deb188712193388b59c00f8a5a5d54b923e7df5d0839796f2eb09cf
SHA512

e071f11a34d79c78375f0dbfc6bacf8873d70e6e9d7fb60276bad06daf8fa5dcaf707d19a6424000919bc832e2fa9e61b82bd5e4d2a80de524d1e51ad0895539
SSDEEP

384:CsfaKYmTz9Wmn+RDwVXtUAfTvxTP3oxX9BkLyi3BYoyxqFbHqT3CMgIwbKbt:JhNTzsm+SFTZUxtBkp3BYooIu0IdR

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
4912	rundll32.exe
4912	rundll32.exe
1004	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\jkkJbxXP.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\jkkJbxXP.dll	rundll32.exe
File created	C:\Windows\SysWOW64\jkkJbxXP.dll	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A596175D-BBC7-476A-A152-FBA652B64505}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A596175D-BBC7-476A-A152-FBA652B64505}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A596175D-BBC7-476A-A152-FBA652B64505}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A596175D-BBC7-476A-A152-FBA652B64505}\InprocServer32\ = "C:\\Windows\\SysWow64\\jkkJbxXP.dll"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4912	rundll32.exe
4912	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe
1004	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4912	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4912	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4432 wrote to memory of 4912	4432	rundll32.exe	88
PID 4432 wrote to memory of 4912	4432	rundll32.exe	88
PID 4432 wrote to memory of 4912	4432	rundll32.exe	88
PID 4912 wrote to memory of 616	4912	rundll32.exe	5
PID 4912 wrote to memory of 1004	4912	rundll32.exe	95
PID 4912 wrote to memory of 1004	4912	rundll32.exe	95
PID 4912 wrote to memory of 1004	4912	rundll32.exe	95

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7c7390e02cfa60093ca875eac138311_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7c7390e02cfa60093ca875eac138311_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4912
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\jkkJbxXP.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:1004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\jkkJbxXP.dll

Filesize
33KB

MD5
f7c7390e02cfa60093ca875eac138311

SHA1
2a457e3758437ba53b83682ffb31aab0b16e0ac7

SHA256
14a36ffc2deb188712193388b59c00f8a5a5d54b923e7df5d0839796f2eb09cf

SHA512
e071f11a34d79c78375f0dbfc6bacf8873d70e6e9d7fb60276bad06daf8fa5dcaf707d19a6424000919bc832e2fa9e61b82bd5e4d2a80de524d1e51ad0895539

Download Submit
memory/1004-17-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/1004-18-0x00000000009A0000-0x00000000009A5000-memory.dmp

Filesize
20KB

Download
memory/1004-19-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4912-0-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4912-1-0x00000000006C0000-0x00000000006C5000-memory.dmp

Filesize
20KB

Download
memory/4912-8-0x00000000006E0000-0x00000000006F0000-memory.dmp

Filesize
64KB

Download
memory/4912-9-0x00000000006F0000-0x00000000006F5000-memory.dmp

Filesize
20KB

Download
memory/4912-10-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4912-14-0x00000000006C0000-0x00000000006C5000-memory.dmp

Filesize
20KB

Download