125d595999a83733562d1db82af2dc5b8e58018b33d27b5c5e64946a6a468631

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2024, 10:09

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General

Target
91b683e60c8a43ebb93843ba7e1cb6fa.dll
Size 608KB
Sample240205-l7ag4adce3
SHA256 125d595999a83733562d1db82af2dc5b8e58018b33d27b5c5e64946a6a468631
MD5 91b683e60c8a43ebb93843ba7e1cb6fa
SHA1 b703fbf35204734a301cac4608d7a6a4913d6545
SHA512 5e56d23d6a2351b45b2fd77df40c924fb751177d1c72fad4da85ecd0fd90f04d0d35461da687f6a0d15c0ffff22c2d46a78403fe992dedcbc14fbb2275f10b75
SSDEEP 12288:gpIt9HX65cspWkY5DARyLuaIg3QaoKrdns300a/:getFXsoB7LGnaoKry00a
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-BFBA-5536-8BA2-88954181D25D}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BFBA-5536-8BA2-88954181D25D}\ProgID\ = "91b683e60c8a43ebb93843ba7e1cb6fa.iwc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BFBA-5536-8BA2-88954181D25D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BFBA-5536-8BA2-88954181D25D}\ = "iwc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BFBA-5536-8BA2-88954181D25D}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BFBA-5536-8BA2-88954181D25D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\91b683e60c8a43ebb93843ba7e1cb6fa.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\91b683e60c8a43ebb93843ba7e1cb6fa.iwc\ = "iwc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\91b683e60c8a43ebb93843ba7e1cb6fa.iwc\Clsid\ = "{CC01FC6C-BFBA-5536-8BA2-88954181D25D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BFBA-5536-8BA2-88954181D25D}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BFBA-5536-8BA2-88954181D25D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\91b683e60c8a43ebb93843ba7e1cb6fa.iwc	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\91b683e60c8a43ebb93843ba7e1cb6fa.iwc\Clsid	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 4364	2276	regsvr32.exe	84
PID 2276 wrote to memory of 4364	2276	regsvr32.exe	84
PID 2276 wrote to memory of 4364	2276	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\91b683e60c8a43ebb93843ba7e1cb6fa.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\91b683e60c8a43ebb93843ba7e1cb6fa.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4364

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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