c12a1354e6fa0b4a628aa596b71b729a7304342adf6165dcd960000c0c97920d

Analysis

max time kernel
125s
max time network
127s
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, 02:00

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General

Target

070892d93dc863ebc55c62b9e015cf3d_JaffaCakes118.dll
Size

231KB
MD5

070892d93dc863ebc55c62b9e015cf3d
SHA1

aa62564f4603004c6a81d57ff02c7251c7b32d7b
SHA256

c12a1354e6fa0b4a628aa596b71b729a7304342adf6165dcd960000c0c97920d
SHA512

f02366d0f69a3cf10a016339cfc4f76e0674f2e5f2af6ce563433c6ee7e4b2a093702923f6d5277b12cbc783ab2436acd275d0bc08fd12743ba196c9281e97e0
SSDEEP

3072:zysX0WxnWd/IkmL+PViEbmzwtz/wk8YWbx:mskd/IkmuVfyWdMx

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\zpryldq = "{919a9f42-1912-6e67-2a23-191217ca45e4}"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1432	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{919a9f42-1912-6e67-2a23-191217ca45e4}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{919a9f42-1912-6e67-2a23-191217ca45e4}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{919a9f42-1912-6e67-2a23-191217ca45e4}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{919a9f42-1912-6e67-2a23-191217ca45e4}\InprocServer32\ = "C:\\Windows\\SysWow64\\ukmtgyl.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{919a9f42-1912-6e67-2a23-191217ca45e4}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1432	rundll32.exe
1432	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1432	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1432	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 1432	4992	rundll32.exe	88
PID 4992 wrote to memory of 1432	4992	rundll32.exe	88
PID 4992 wrote to memory of 1432	4992	rundll32.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\070892d93dc863ebc55c62b9e015cf3d_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\070892d93dc863ebc55c62b9e015cf3d_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:1432

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=4180,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=4080 /prefetch:8
1⤵
PID:740

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\mcelyqd.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/1432-0-0x0000000002090000-0x00000000020D3000-memory.dmp

Filesize
268KB

Download
memory/1432-10-0x0000000002090000-0x00000000020D3000-memory.dmp

Filesize
268KB

Download
memory/1432-2-0x0000000002091000-0x0000000002098000-memory.dmp

Filesize
28KB

Download
memory/1432-11-0x0000000002090000-0x00000000020D3000-memory.dmp

Filesize
268KB

Download