77becab9c5aee94c5d5364a1adf29c72d0a3809cc322a3ae4850613f1fbf0d41

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04/05/2024, 16:51

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General

Target
13a0e72d00c2a98afe0a13685ec9aad2_JaffaCakes118.dll
Size 50KB
Sample240504-vcsvmabf6z
SHA256 77becab9c5aee94c5d5364a1adf29c72d0a3809cc322a3ae4850613f1fbf0d41
MD5 13a0e72d00c2a98afe0a13685ec9aad2
SHA1 bd4cf9a02c0dda2731559b0abe809ebc268484a3
SHA512 64df902e8fb7a58dfb3bc7dc487a9d63b296218430edcde11e8842b12b4f4f1c2a081fbfbd4d6354b60aadd78ef9983a9200048c2b9100dbab53c3252f8ba5c7
SSDEEP 192:tvLcPTAwIkSF/vOMDXknTvSyKIogGPDAzsn:tYPErt5iKbn
MD5 SHA1 SHA512 SSDEEP

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	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{DBA123C3-A500-90BD-A820-04B53A2C8952}	regsvr32.exe

Modifies registry class 8 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DBA123C3-A500-90BD-A820-04B53A2C8952}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DBA123C3-A500-90BD-A820-04B53A2C8952}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\13a0e72d00c2a98afe0a13685ec9aad2_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DBA123C3-A500-90BD-A820-04B53A2C8952}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DBA123C3-A500-90BD-A820-04B53A2C8952}\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\13a0e72d00c2a98afe0a13685ec9aad2_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DBA123C3-A500-90BD-A820-04B53A2C8952}\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DBA123C3-A500-90BD-A820-04B53A2C8952}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2056	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2056	2912	regsvr32.exe	83
PID 2912 wrote to memory of 2056	2912	regsvr32.exe	83
PID 2912 wrote to memory of 2056	2912	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\13a0e72d00c2a98afe0a13685ec9aad2_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\13a0e72d00c2a98afe0a13685ec9aad2_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:2056

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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