296a4eafb45ea0aa5873b5c85a4e0350bb143cae50a3d8f4027d729037a4639e

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
20/03/2024, 18:08

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General

Target
d9778be70c6b424e8a7e89d92f8cbfcc.dll
Size 8KB
Sample240320-wrcbvsfa28
SHA256 296a4eafb45ea0aa5873b5c85a4e0350bb143cae50a3d8f4027d729037a4639e
MD5 d9778be70c6b424e8a7e89d92f8cbfcc
SHA1 f439093048080a3223081864e8146a4cf3629f53
SHA512 34bed971bc4cd81685cfa82766b785e89736162fb247f2a03a789519e48ebafc1029476f6c430f05ca5f3ac3be1933d2529e967ae273738b804bd3ff5c5a975a
SSDEEP 192:mzcbgcckYvQvVXAkNFaul7WXeLzjvYC24B:mzYgctxvVxNY4SXsPD2
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware 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\{BE1A344F-9FF5-4024-949B-52205E6DB2D0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BE1A344F-9FF5-4024-949B-52205E6DB2D0}\	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BE1A344F-9FF5-4024-949B-52205E6DB2D0}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{BE1A344F-9FF5-4024-949B-52205E6DB2D0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BE1A344F-9FF5-4024-949B-52205E6DB2D0}\www = "www"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{BE1A344F-9FF5-4024-949B-52205E6DB2D0}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BE1A344F-9FF5-4024-949B-52205E6DB2D0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d9778be70c6b424e8a7e89d92f8cbfcc.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2356	2868	regsvr32.exe	87
PID 2868 wrote to memory of 2356	2868	regsvr32.exe	87
PID 2868 wrote to memory of 2356	2868	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\d9778be70c6b424e8a7e89d92f8cbfcc.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\d9778be70c6b424e8a7e89d92f8cbfcc.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2356

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/2356-0-0x0000000010000000-0x000000001000C000-memory.dmp

Download

memory/2356-1-0x0000000010000000-0x000000001000C000-memory.dmp