993f4364cf13fa46d4931ff41326b189a5d5ebc18b094bc599953709e6c9b938

Analysis

max time kernel
125s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24/06/2024, 13:19

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General

Target

08bef3ec4e039fb5146cc038e9654dd2_JaffaCakes118.dll
Size

230KB
MD5

08bef3ec4e039fb5146cc038e9654dd2
SHA1

5333393c95fb33c8a03f8ffe81dea3a40404e326
SHA256

993f4364cf13fa46d4931ff41326b189a5d5ebc18b094bc599953709e6c9b938
SHA512

8f77f6fa949f9817a2173194cdcd00cadbdc9dc061efb2688be35819eadf820754573904ffb7c3c9ab8592bccaab3b289e3278c907865f95110cd6263522f6dd
SSDEEP

1536:QiaVnouSu4CU7XZfjPcj/NMC2PhBRX99m+g9Vxm5dZZpQCLWGUGowkTEI/9:VioFCUrJcj/uC2b9+x0Jq8uwkQIF

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\jdd = "{5bd90b12-d351-28a6-e462-d351839a511a}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
776	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5bd90b12-d351-28a6-e462-d351839a511a}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5bd90b12-d351-28a6-e462-d351839a511a}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5bd90b12-d351-28a6-e462-d351839a511a}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5bd90b12-d351-28a6-e462-d351839a511a}\InprocServer32\ = "C:\\Windows\\SysWow64\\eyy.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5bd90b12-d351-28a6-e462-d351839a511a}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
776	rundll32.exe
776	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	776	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
776	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 776	2696	rundll32.exe	88
PID 2696 wrote to memory of 776	2696	rundll32.exe	88
PID 2696 wrote to memory of 776	2696	rundll32.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\08bef3ec4e039fb5146cc038e9654dd2_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\08bef3ec4e039fb5146cc038e9654dd2_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:776

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 --no-appcompat-clear --field-trial-handle=4204,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=4488 /prefetch:8
1⤵
PID:1420

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\wqq.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/776-0-0x0000000000401000-0x0000000000408000-memory.dmp

Filesize
28KB

Download
memory/776-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/776-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download