b219090ea8b35c048462e5b32793485f18ee1b16bac0776eabd604cf75238bec

Analysis

max time kernel
150s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 06:58

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General

Target

f9c163b603c11db088b75e5e1afb5183_JaffaCakes118.dll
Size

19KB
MD5

f9c163b603c11db088b75e5e1afb5183
SHA1

5314993f09c85ec64d213184579983ac462cf7e2
SHA256

b219090ea8b35c048462e5b32793485f18ee1b16bac0776eabd604cf75238bec
SHA512

ed62ebe3856d69fa9b72b067a4d6fd1367bcd7c89551045ecb26216579677fd568b02f8c37596a9ab1bb69784d44f552fba6bdf7c43308c737c2852e3baabc92
SSDEEP

384:RPyZNjtU2mX7CJ7mzGaN0po5ZzBp3zMizEqSV90:JyZKCmdNAqH3z1EqSV

Score

6^/10

adware stealer

Malware Config

Signatures

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\{12596546-2036-9451-6058-658402589721}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{12596546-2036-9451-6058-658402589721}\ = "opshabty.dll"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\verclsid.exe	rundll32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721}\InprocServer32\ = "C:\\Windows\\SysWow64\\opshabty.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721}\InprocServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2064	rundll32.exe
2064	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2064	1668	rundll32.exe	83
PID 1668 wrote to memory of 2064	1668	rundll32.exe	83
PID 1668 wrote to memory of 2064	1668	rundll32.exe	83
PID 2064 wrote to memory of 1004	2064	rundll32.exe	85
PID 2064 wrote to memory of 1004	2064	rundll32.exe	85
PID 2064 wrote to memory of 1004	2064	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9c163b603c11db088b75e5e1afb5183_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9c163b603c11db088b75e5e1afb5183_JaffaCakes118.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2064
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240640484.bat
    3⤵
    PID:1004

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

C:\Users\Admin\AppData\Local\Temp\~DFD240640484.bat

Filesize
121B

MD5
09517fc62284f33e877a276463580bd1

SHA1
0b14fe1db4493818f9de0bf2a56ee5370b8d479a

SHA256
6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238

SHA512
1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d

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