c4c67f7c0a452aadb6daf75b60005d980aa27b5764243114e49b489d31be3454

Analysis

max time kernel
139s
max time network
126s
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, 22:31

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General

Target

03097b03058e6f39dee836c978e54093_JaffaCakes118.dll
Size

236KB
MD5

03097b03058e6f39dee836c978e54093
SHA1

c7c9ca0d2b06a7507c9d3f3dabfe95d053f50e97
SHA256

c4c67f7c0a452aadb6daf75b60005d980aa27b5764243114e49b489d31be3454
SHA512

faf5e2a07a3f4593e02d5471cba561313da14d8e07815c129e9ae798214bf996cc2d2783abfe3265245d9e99eeb333e57e974238b9b47ad5f762d9e9a601e88c
SSDEEP

3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkIm:+Qj9U3jwO3rt55

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\cvjnktzds = "{8d39ef31-05b1-5a06-16c2-05b167b9a90b}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4124	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8d39ef31-05b1-5a06-16c2-05b167b9a90b}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8d39ef31-05b1-5a06-16c2-05b167b9a90b}\InprocServer32\ = "C:\\Windows\\SysWow64\\xqeifouyn.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8d39ef31-05b1-5a06-16c2-05b167b9a90b}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8d39ef31-05b1-5a06-16c2-05b167b9a90b}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8d39ef31-05b1-5a06-16c2-05b167b9a90b}\	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4124	rundll32.exe
4124	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4124	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4124	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 4124	4092	rundll32.exe	92
PID 4092 wrote to memory of 4124	4092	rundll32.exe	92
PID 4092 wrote to memory of 4124	4092	rundll32.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03097b03058e6f39dee836c978e54093_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4092
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\03097b03058e6f39dee836c978e54093_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:4124

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3772,i,1305347165619645738,15927664461101562802,262144 --variations-seed-version --mojo-platform-channel-handle=4116 /prefetch:8
1⤵
PID:3848

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\piwaxgmqf.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/4124-0-0x0000000001F80000-0x0000000001FC4000-memory.dmp

Filesize
272KB

Download
memory/4124-1-0x0000000001F81000-0x0000000001F88000-memory.dmp

Filesize
28KB

Download
memory/4124-8-0x0000000001F80000-0x0000000001FC4000-memory.dmp

Filesize
272KB

Download
memory/4124-12-0x0000000001F80000-0x0000000001FC4000-memory.dmp

Filesize
272KB

Download