672ec28e305a6eda5d7ea5f2b00a8fef7c188fb83d90f68d25c6a8cae359dbc6

Analysis

max time kernel
117s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/01/2024, 12:50

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General

Target

40e7df2781fe5528e0e4796e493cd120.dll
Size

580KB
MD5

40e7df2781fe5528e0e4796e493cd120
SHA1

eedc4590d74ec020051312ef20c691d67619c857
SHA256

672ec28e305a6eda5d7ea5f2b00a8fef7c188fb83d90f68d25c6a8cae359dbc6
SHA512

833b9cea5633c1db925828e8134d0d3d0d8f9af7b61096cbbf21de04aaa13812de67306bfb7a5e43c61f419d066d59dbf2d15b3a016d1a6e28a7c344e7368ba4
SSDEEP

6144:MW7TJ2OqDBaZO/G0RZKe70Db/7YHYvpg98RGWWigSnGjD7aSucpUqd2qco+AO3GU:x12OkAO/nRZKfzRG3iO/lucj2qcPGp+

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\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\40e7df2781fe5528e0e4796e493cd120.ExpBare	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\40e7df2781fe5528e0e4796e493cd120.ExpBare\ = "Explorq"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\40e7df2781fe5528e0e4796e493cd120.ExpBare\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}\ProgID\ = "40e7df2781fe5528e0e4796e493cd120.ExpBare"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\40e7df2781fe5528e0e4796e493cd120.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\40e7df2781fe5528e0e4796e493cd120.ExpBare\Clsid\ = "{6263E0AC-40B9-4863-BBE0-B8BD4732987B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6263E0AC-40B9-4863-BBE0-B8BD4732987B}\ = "Explorq"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 2108	2052	regsvr32.exe	27
PID 2052 wrote to memory of 2108	2052	regsvr32.exe	27
PID 2052 wrote to memory of 2108	2052	regsvr32.exe	27
PID 2052 wrote to memory of 2108	2052	regsvr32.exe	27
PID 2052 wrote to memory of 2108	2052	regsvr32.exe	27
PID 2052 wrote to memory of 2108	2052	regsvr32.exe	27
PID 2052 wrote to memory of 2108	2052	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\40e7df2781fe5528e0e4796e493cd120.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\40e7df2781fe5528e0e4796e493cd120.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2108

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/2108-0-0x0000000000A30000-0x0000000000AC6000-memory.dmp

Filesize
600KB

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