cb77a2ed816edf261002275593d30f7fe32ef21a7324e7bae6da777b1e5f2b9d

Analysis

max time kernel
118s
max time network
129s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 08:41

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General

Target

12ad275ab6a8a03e53e95729206e5b52.dll
Size

168KB
MD5

12ad275ab6a8a03e53e95729206e5b52
SHA1

1b6dcb5dd7e029312ce8fa955f06e791efd3a76e
SHA256

cb77a2ed816edf261002275593d30f7fe32ef21a7324e7bae6da777b1e5f2b9d
SHA512

77cc43e50dfdea994fd1c58155335443eccf03cde9b3248ccf66d9aff55fd39a6c41b4eb58aadb0fe256fa758fb983d30c2a9b44274031cb5f7b7793042a0869
SSDEEP

3072:xCIoI5i5zZXTQZLH3LbyEHu6YLNcgb7fP90k9vxXLJyNKv0X:8XIiQZLH6LH/90MvxXcYcX

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\{F9765480-72D1-11D4-A75A-004F49045A87}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F9765480-72D1-11D4-A75A-004F49045A87}\ = "eXact Browser Companion"	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Toolbar	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar\{224530A0-C9CB-4AEE-9C0F-54AC1B533211} = "eXactToolbar"	regsvr32.exe

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{224530A0-C9CB-4AEE-9C0F-54AC1B533211}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{224530A0-C9CB-4AEE-9C0F-54AC1B533211}\ = "&eXact Toolbar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{224530A0-C9CB-4AEE-9C0F-54AC1B533211}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\12ad275ab6a8a03e53e95729206e5b52.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9765480-72D1-11D4-A75A-004F49045A87}\ = "eXact Browser Companion"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9765480-72D1-11D4-A75A-004F49045A87}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9765480-72D1-11D4-A75A-004F49045A87}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{224530A0-C9CB-4AEE-9C0F-54AC1B533211}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9765480-72D1-11D4-A75A-004F49045A87}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9765480-72D1-11D4-A75A-004F49045A87}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\12ad275ab6a8a03e53e95729206e5b52.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{224530A0-C9CB-4AEE-9C0F-54AC1B533211}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 2828	2812	regsvr32.exe	27
PID 2812 wrote to memory of 2828	2812	regsvr32.exe	27
PID 2812 wrote to memory of 2828	2812	regsvr32.exe	27
PID 2812 wrote to memory of 2828	2812	regsvr32.exe	27
PID 2812 wrote to memory of 2828	2812	regsvr32.exe	27
PID 2812 wrote to memory of 2828	2812	regsvr32.exe	27
PID 2812 wrote to memory of 2828	2812	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\12ad275ab6a8a03e53e95729206e5b52.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\12ad275ab6a8a03e53e95729206e5b52.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:2828

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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