e3cf78e627f3db9f27d101f5c2d0c4e6e10f478406fcd449ae6b179b2a1a1cc3

Analysis

max time kernel
105s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
15/02/2024, 01:06

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General

Target
9c8e0d69920d846d1f1f7c64f68746c2.dll
Size 654KB
Sample240215-bf9srsdb4t
SHA256 e3cf78e627f3db9f27d101f5c2d0c4e6e10f478406fcd449ae6b179b2a1a1cc3
MD5 9c8e0d69920d846d1f1f7c64f68746c2
SHA1 08f5718065eb77fb72b9dac04d7e7438a81ca48a
SHA512 4d3fd02991e02390794c9d068942c190cfff0964b271616d5a27c0de9bbbecf0e6a6f663144d94d69e1f173ec7d6afe6170a6753cc4fbbeb25ad1f509da58f5e
SSDEEP 12288:Ptv1W0IFGiS5JeprW70QxcPJHRFLL+p6r0k2JC1RW8QvHCqmoRIV6Ip3po6o2yo:VM0PiQ85xRJ+U0Dy0GoRIcIpu6Q
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-7AC4-1F91-4C46-F1E2B5A6F9CB}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9c8e0d69920d846d1f1f7c64f68746c2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\9c8e0d69920d846d1f1f7c64f68746c2.sb	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\9c8e0d69920d846d1f1f7c64f68746c2.sb\Clsid\ = "{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}\ProgID\ = "9c8e0d69920d846d1f1f7c64f68746c2.sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}\ = "sb"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7AC4-1F91-4C46-F1E2B5A6F9CB}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\9c8e0d69920d846d1f1f7c64f68746c2.sb\ = "sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\9c8e0d69920d846d1f1f7c64f68746c2.sb\Clsid	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 3804	2920	regsvr32.exe	86
PID 2920 wrote to memory of 3804	2920	regsvr32.exe	86
PID 2920 wrote to memory of 3804	2920	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\9c8e0d69920d846d1f1f7c64f68746c2.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\9c8e0d69920d846d1f1f7c64f68746c2.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3804

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/3804-0-0x0000000000800000-0x00000000008A8000-memory.dmp

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