3f55c4f1d5cdc3591b1546231e93e8ae3b4587e3c55c7d1f3786a20f54d9aafb

Analysis

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

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13/07/2024, 13:09

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General

Target

41cdf3404ce9ac555953fa1287c81a9b_JaffaCakes118.dll
Size

22KB
MD5

41cdf3404ce9ac555953fa1287c81a9b
SHA1

55ba0c820ebc4fd4eb66e85c44a35fe55f4a8a4e
SHA256

3f55c4f1d5cdc3591b1546231e93e8ae3b4587e3c55c7d1f3786a20f54d9aafb
SHA512

3242ae0464dd3b03d65e9531bebc5c7687d7b89273ba0421d4f9f380dc9d5f19b6193324605a850a1a6d1cfd813442ecd2dc975bcc6e6733f65f25660e598c9a
SSDEEP

384:fzvQeo/3/ujvi6VB18OqrurUEb8KE9sWQmTPchXFLScQwt:fzXoWjvt18281sWnTPcHLScB

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
4476	rundll32.exe
4476	rundll32.exe
1868	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\\mlJDwXrS.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{120BB507-7E43-46F1-8645-7BF4E4E11112}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{120BB507-7E43-46F1-8645-7BF4E4E11112}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{120BB507-7E43-46F1-8645-7BF4E4E11112}\InprocServer32\ = "C:\\Windows\\SysWow64\\mlJDwXrS.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{120BB507-7E43-46F1-8645-7BF4E4E11112}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4476	rundll32.exe
4476	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe
1868	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4476	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4476	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4476	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1092 wrote to memory of 4476	1092	rundll32.exe	83
PID 1092 wrote to memory of 4476	1092	rundll32.exe	83
PID 1092 wrote to memory of 4476	1092	rundll32.exe	83
PID 4476 wrote to memory of 624	4476	rundll32.exe	5
PID 4476 wrote to memory of 1868	4476	rundll32.exe	89
PID 4476 wrote to memory of 1868	4476	rundll32.exe	89
PID 4476 wrote to memory of 1868	4476	rundll32.exe	89

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:624

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\41cdf3404ce9ac555953fa1287c81a9b_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1092
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\41cdf3404ce9ac555953fa1287c81a9b_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:4476
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\mlJDwXrS.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:1868

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

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Downloads

C:\Windows\SysWOW64\mlJDwXrS.dll

Filesize
22KB

MD5
41cdf3404ce9ac555953fa1287c81a9b

SHA1
55ba0c820ebc4fd4eb66e85c44a35fe55f4a8a4e

SHA256
3f55c4f1d5cdc3591b1546231e93e8ae3b4587e3c55c7d1f3786a20f54d9aafb

SHA512
3242ae0464dd3b03d65e9531bebc5c7687d7b89273ba0421d4f9f380dc9d5f19b6193324605a850a1a6d1cfd813442ecd2dc975bcc6e6733f65f25660e598c9a

Download Submit
memory/1868-17-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/1868-18-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/1868-19-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/4476-0-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/4476-1-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/4476-8-0x0000000000A60000-0x0000000000A72000-memory.dmp

Filesize
72KB

Download
memory/4476-10-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/4476-9-0x0000000000A60000-0x0000000000A72000-memory.dmp

Filesize
72KB

Download
memory/4476-12-0x0000000000A60000-0x0000000000A72000-memory.dmp

Filesize
72KB

Download