259740db0d1e158cfdad1c5c92a6942adf8f0e1193effa2458d833338d934b22

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/04/2024, 00:37

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General

Target
eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.dll
Size 562KB
Sample240412-ayjhvsaa63
SHA256 259740db0d1e158cfdad1c5c92a6942adf8f0e1193effa2458d833338d934b22
MD5 eeb8bdb05c525cc40962431c23ba90fb
SHA1 cf2bff9dd5fd1dae44e4bfe6bbc8a6ba987696d2
SHA512 30c57293b5c43af777e63f13e86536f6ab1e2839e64444ba7a72d461a9b36edfff58579ae82a96ceeeec5ec0102cb18b36d348cf65c51ba13948a2e9a04ef6a6
SSDEEP 12288:U0Et9YDc/Tk4Po4wSSqodPF9C2vTgYnYxEvSXZrNRH:ctWDcw4o4Ts/9Ckn+nR
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 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\{CC01FC6C-B791-FD7D-854E-62B3752266D8}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.sh	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.sh\ = "sh"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.sh\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.sh\Clsid\ = "{CC01FC6C-B791-FD7D-854E-62B3752266D8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B791-FD7D-854E-62B3752266D8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B791-FD7D-854E-62B3752266D8}\ = "sh"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B791-FD7D-854E-62B3752266D8}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B791-FD7D-854E-62B3752266D8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B791-FD7D-854E-62B3752266D8}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B791-FD7D-854E-62B3752266D8}\ProgID\ = "eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.sh"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B791-FD7D-854E-62B3752266D8}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 1044	4028	regsvr32.exe	84
PID 4028 wrote to memory of 1044	4028	regsvr32.exe	84
PID 4028 wrote to memory of 1044	4028	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4028
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\eeb8bdb05c525cc40962431c23ba90fb_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1044-0-0x00000000007A0000-0x0000000000832000-memory.dmp

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