75a847dafdc1eb017304f7f663f2fed0d60a59f72ccac67fa2f7be5a4dcca86c

Analysis

max time kernel
148s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 04:31

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General

Target

3fe685ead2e00a941e8f711784f31b67.dll
Size

159KB
MD5

3fe685ead2e00a941e8f711784f31b67
SHA1

fd6c020ec40637a958796e442a583bcfa7f8dd3f
SHA256

75a847dafdc1eb017304f7f663f2fed0d60a59f72ccac67fa2f7be5a4dcca86c
SHA512

0becc35bb0b72e323e8a9295016f55f3fdcb4250edbb9278825ad59ca95522eb607e7ad5b3bfc7b47e7b4d7e082994c06ff503c1befe65f789dddc52ad5aaf3c
SSDEEP

3072:YGT2CUJqaon2d6lC+L5FxHIDmoUqKy4v5jS:Yg21JqD22zL5wDFNExS

Score

6^/10

adware persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\{c65c8035-fe08-60c1-011f-6ab9514830e6} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\3fe685ead2e00a941e8f711784f31b67.dll\" DllStub"	regsvr32.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\{9841eaac-a7ec-8152-aeba-d82bcd39208b}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9841eaac-a7ec-8152-aeba-d82bcd39208b}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9841eaac-a7ec-8152-aeba-d82bcd39208b}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3fe685ead2e00a941e8f711784f31b67.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9841eaac-a7ec-8152-aeba-d82bcd39208b}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9841eaac-a7ec-8152-aeba-d82bcd39208b}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9841eaac-a7ec-8152-aeba-d82bcd39208b}\ = "giantads browser enhancer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9841eaac-a7ec-8152-aeba-d82bcd39208b}\InProcServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4576 wrote to memory of 2308	4576	regsvr32.exe	80
PID 4576 wrote to memory of 2308	4576	regsvr32.exe	80
PID 4576 wrote to memory of 2308	4576	regsvr32.exe	80

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3fe685ead2e00a941e8f711784f31b67.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4576
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\3fe685ead2e00a941e8f711784f31b67.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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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