884077a15409a95ef4456372087e339eb19a192061be022c9c8503eebde032c1

Analysis

max time kernel
132s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-08-2024 03:38

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General

Target

a96ef59a8272238e5637814618dd3f0a_JaffaCakes118.dll
Size

686KB
MD5

a96ef59a8272238e5637814618dd3f0a
SHA1

9a33879e1c6a0c15b854ec1b77983886cb9f60aa
SHA256

884077a15409a95ef4456372087e339eb19a192061be022c9c8503eebde032c1
SHA512

7fad7e4734eda3a0bf7f843cde481517e2742b0aa8bd0a139f07d64c2af22c14a1589f3613252ea262b7e7ef6df0080cfc198aaa3aed82af598f6d9906de2807
SSDEEP

12288:fcIHtfBgNEh3fXlxMPf5q8oC+K/HbBnqjxUoVUIVXjhVWW+FqV8T0NDjYigHg:fcIXgN4fXlyPf5P+unqjxUDT0NDjYig

Score

6^/10

adware discovery 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\{148d6662-4296-19b0-3764-33495618daca}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{148d6662-4296-19b0-3764-33495618daca}\NoExplorer = "\"\""	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{148d6662-4296-19b0-3764-33495618daca}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{148d6662-4296-19b0-3764-33495618daca}\ = "adservefast"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{148d6662-4296-19b0-3764-33495618daca}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{148d6662-4296-19b0-3764-33495618daca}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a96ef59a8272238e5637814618dd3f0a_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{148d6662-4296-19b0-3764-33495618daca}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2236	2072	regsvr32.exe	84
PID 2072 wrote to memory of 2236	2072	regsvr32.exe	84
PID 2072 wrote to memory of 2236	2072	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a96ef59a8272238e5637814618dd3f0a_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a96ef59a8272238e5637814618dd3f0a_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2236

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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