79bb30dc195363352fb9a079e68c9c2aee8cad9dda7f59cbca5c1698e9643e0e

Analysis

max time kernel
150s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
21/07/2024, 22:20

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General

Target

619faddcfa1b5c748052cc84373125b5_JaffaCakes118.dll
Size

35KB
MD5

619faddcfa1b5c748052cc84373125b5
SHA1

1a38ad8db849b75dc603066153464776e185cf30
SHA256

79bb30dc195363352fb9a079e68c9c2aee8cad9dda7f59cbca5c1698e9643e0e
SHA512

5d6f756a64a457c1259319ba01cba73e775cd1700c0b31c395d608e2904fd3eb20f08cbfb6ef3daea36824ba42276c694a4657d53f099fa4fb7df3fa82613c72
SSDEEP

768:MT1hb1E+4wiPY1GHB2Iig7+nM8pqEZzoT77eIC+rn:+6+ViPYuig7+MA679C+rn

Score

7^/10

persistence upx

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
1924	rundll32.exe
1924	rundll32.exe
2744	rundll32.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1924-0-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1924-1-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1924-2-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1924-5-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1924-14-0x0000000000820000-0x0000000000834000-memory.dmp	upx
behavioral2/memory/2744-24-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2744-25-0x0000000010000000-0x0000000010014000-memory.dmp	upx

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\\mlJYqOEw.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E5646F36-145E-4F1D-B6D1-87C5EFC5BA1C}\InprocServer32\ = "C:\\Windows\\SysWow64\\mlJYqOEw.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E5646F36-145E-4F1D-B6D1-87C5EFC5BA1C}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E5646F36-145E-4F1D-B6D1-87C5EFC5BA1C}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E5646F36-145E-4F1D-B6D1-87C5EFC5BA1C}\InprocServer32	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1924	rundll32.exe
1924	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1924	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1924	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 1924	4504	rundll32.exe	84
PID 4504 wrote to memory of 1924	4504	rundll32.exe	84
PID 4504 wrote to memory of 1924	4504	rundll32.exe	84
PID 1924 wrote to memory of 608	1924	rundll32.exe	5
PID 1924 wrote to memory of 2744	1924	rundll32.exe	96
PID 1924 wrote to memory of 2744	1924	rundll32.exe	96
PID 1924 wrote to memory of 2744	1924	rundll32.exe	96

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\619faddcfa1b5c748052cc84373125b5_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\619faddcfa1b5c748052cc84373125b5_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:1924
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\mlJYqOEw.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:2744

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\mlJYqOEw.dll

Filesize
35KB

MD5
619faddcfa1b5c748052cc84373125b5

SHA1
1a38ad8db849b75dc603066153464776e185cf30

SHA256
79bb30dc195363352fb9a079e68c9c2aee8cad9dda7f59cbca5c1698e9643e0e

SHA512
5d6f756a64a457c1259319ba01cba73e775cd1700c0b31c395d608e2904fd3eb20f08cbfb6ef3daea36824ba42276c694a4657d53f099fa4fb7df3fa82613c72

Download Submit
memory/1924-0-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1924-1-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1924-3-0x00000000004E0000-0x00000000004E7000-memory.dmp

Filesize
28KB

Download
memory/1924-2-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1924-4-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/1924-5-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1924-14-0x0000000000820000-0x0000000000834000-memory.dmp

Filesize
80KB

Download
memory/2744-21-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2744-24-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2744-25-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download