122b0c5761c76830ea1cc58e97ecdb1e91c23a428a6de3b827b1edc98e4b1da6

Analysis

max time kernel
149s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22/06/2024, 12:43

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General

Target
022bcc1c38771540622cb928cd602e38_JaffaCakes118.exe
Size 25KB
Sample240622-pyd1psycqe
SHA256 122b0c5761c76830ea1cc58e97ecdb1e91c23a428a6de3b827b1edc98e4b1da6
MD5 022bcc1c38771540622cb928cd602e38
SHA1 16eede566a0c854840f4a7a6d1ddd9d951131b43
SHA512 a9c3cf41b321ffd5a327d6c9c68f5428ac404965a70fd77b0fe405c70f22886d1d5ad368ae40418e5047ffcd315490bc5f00118783778cca8d586c2d928c283a
SSDEEP 384:wuPv8Ci8igpfAPEAGcvglJDkl4zg311pTQH4CtYoKXVhxACnb+/Zjz:5npsycvglJDQLFEY2eXV10Zjz
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware persistence stealer

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1296	RunDll32.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8841f643-b5cd-4ecb-a57f-40df868c123f}	RunDll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8841f643-b5cd-4ecb-a57f-40df868c123f}\	RunDll32.exe

Modifies WinLogon 2 TTPs 7 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\edgdef\Dllname = "edgdef.dll"	RunDll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\edgdef\Impersonate = "0"	RunDll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\edgdef\Startup = "NotifyStartup"	RunDll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\edgdef\Shutdown = "NotifyShutdown"	RunDll32.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\	RunDll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\edgdef	RunDll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\edgdef\Asynchronous = "0"	RunDll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\edgdef.dll	022bcc1c38771540622cb928cd602e38_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8841f643-b5cd-4ecb-a57f-40df868c123f}	RunDll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8841f643-b5cd-4ecb-a57f-40df868c123f}\InprocServer32	RunDll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8841f643-b5cd-4ecb-a57f-40df868c123f}\InprocServer32\ = "C:\\Windows\\SysWow64\\edgdef.dll"	RunDll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8841f643-b5cd-4ecb-a57f-40df868c123f}\InprocServer32\ThreadingModel = "Free"	RunDll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1296	RunDll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 1296	4316	022bcc1c38771540622cb928cd602e38_JaffaCakes118.exe	89
PID 4316 wrote to memory of 1296	4316	022bcc1c38771540622cb928cd602e38_JaffaCakes118.exe	89
PID 4316 wrote to memory of 1296	4316	022bcc1c38771540622cb928cd602e38_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\022bcc1c38771540622cb928cd602e38_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\022bcc1c38771540622cb928cd602e38_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\RunDll32.exe
  RunDll32.exe "C:\Windows\system32\edgdef.dll",DNSetup
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Modifies WinLogon
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:1296

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=3896,i,13640054265074968359,8146127767143474550,262144 --variations-seed-version --mojo-platform-channel-handle=3924 /prefetch:8
1⤵
PID:2200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

edgdef.dll

Path C:\Windows\SysWOW64\edgdef.dll
Size 18KB
SHA256 b4a4170f46e2544ac2a8d56112cf36d8996a3bc45c7e82ff716d092fe3c2b03a
MD5 efed4bea1a76f06db94b6e468bea8cbc
SHA1 4d1f2988d4e172ef4a9e24cc62cbc7b3f4e64963
SHA512 0f3a3c34f5484673144bc79881914a1dfb01133e552454513768403d6cd1151fcd2830f15bb12e1f57fe1b772f1c01e4f4cd497a345774cfbe2b43ffc4ca1de2
SSDEEP 384:xlGtJIOQlId71Otzc6F8Gt6Gl6Acw1HIenUk4Pg46kFg1:xlGGGdBON78BGxHIOUOQe1
MD5 SHA1 SHA512 SSDEEP

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memory/1296-3-0x0000000010000000-0x000000001001A000-memory.dmp

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memory/1296-4-0x0000000010000000-0x000000001001A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads