c0433b98811ed422bcf88ba8cc059400edb41a3240c3711074757aaab958a4b7

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
23-06-2024 22:42

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General

Target

033f744fb393731a6591a8e53bd216cd_JaffaCakes118.dll
Size

236KB
MD5

033f744fb393731a6591a8e53bd216cd
SHA1

54fda75f649d29b69a3da6fa05885163b4809474
SHA256

c0433b98811ed422bcf88ba8cc059400edb41a3240c3711074757aaab958a4b7
SHA512

4db26d340e20de93a9438abbcb41d77af15951522e37686c2fd66bb1ce433b19cd556fb93f245eda3a3c8ea0dfc46c58edef4b88d474ca496516fc72d9f31114
SSDEEP

3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkI5:+Qj9U3jwO3rt5i

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\cejvwosuv = "{c8f9802e-4071-95c6-5182-407108a635fa}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1896	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c8f9802e-4071-95c6-5182-407108a635fa}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c8f9802e-4071-95c6-5182-407108a635fa}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c8f9802e-4071-95c6-5182-407108a635fa}\InprocServer32\ = "C:\\Windows\\SysWow64\\xzeqrjnpq.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c8f9802e-4071-95c6-5182-407108a635fa}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c8f9802e-4071-95c6-5182-407108a635fa}	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1896	rundll32.exe
1896	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1896	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1896	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 1896	4024	rundll32.exe	82
PID 4024 wrote to memory of 1896	4024	rundll32.exe	82
PID 4024 wrote to memory of 1896	4024	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\033f744fb393731a6591a8e53bd216cd_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\033f744fb393731a6591a8e53bd216cd_JaffaCakes118.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1896

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

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Downloads

C:\Windows\SysWOW64\prwijbfhi.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/1896-0-0x0000000000401000-0x0000000000408000-memory.dmp

Filesize
28KB

Download
memory/1896-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1896-9-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1896-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download