cfb5bc4e441abbad1c76c61416134adb0774d52b38d0cd0c883fd44e354c487f

Analysis

max time kernel
92s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 05:05

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General

Target

cfb5bc4e441abbad1c76c61416134adb0774d52b38d0cd0c883fd44e354c487f.dll
Size

633KB
MD5

02f6a5d601a5d2f999e4b4914275fce1
SHA1

c3c538fbed3bbe0534a3cc0bd7232f311c7fc238
SHA256

cfb5bc4e441abbad1c76c61416134adb0774d52b38d0cd0c883fd44e354c487f
SHA512

8266906e6949e50562fd63901c943c5c47f6e1ed2181e1b14865e5096d2ebf98ed57343c312d681e3111f85a61418a567f6c6b9fe35362e60427d4a3ff517162
SSDEEP

12288:U3e7wpKIvsB/mnneeQCJ5cjjh7p90DpAZnccL:NS7sZEniCzUhV9jG

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\{FCADDC14-BD46-408A-9842-CDBE1C6D37ED}	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37ED}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37ED}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37ED}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37ED}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cfb5bc4e441abbad1c76c61416134adb0774d52b38d0cd0c883fd44e354c487f.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37ED}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 1032	384	regsvr32.exe	83
PID 384 wrote to memory of 1032	384	regsvr32.exe	83
PID 384 wrote to memory of 1032	384	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\cfb5bc4e441abbad1c76c61416134adb0774d52b38d0cd0c883fd44e354c487f.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:384
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\cfb5bc4e441abbad1c76c61416134adb0774d52b38d0cd0c883fd44e354c487f.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1032

Network

MITRE ATT&CK Enterprise v6

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/1032-133-0x0000000001FE0000-0x0000000002084000-memory.dmp

Filesize
656KB

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