ade40e9a5044428e73e547beff4db39db0e9828784203e67691aac78f637b863

Analysis

max time kernel
92s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
15/02/2024, 02:23

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General

Target
99f756c05083a3fb157e2ff439c7baed.dll
Size 564KB
Sample240215-ct65gaed3s
SHA256 ade40e9a5044428e73e547beff4db39db0e9828784203e67691aac78f637b863
MD5 99f756c05083a3fb157e2ff439c7baed
SHA1 e127e8564c2be4e49f47d8d1c218b24a08fdca13
SHA512 282b461b8b9b990611c9b68a5660334e715edca5dd9acd642c5c916bc0ce85877b242777cd5e772b4e597ce3d594f0959d714646e68cd86b720bccbb6d61c67b
SSDEEP 12288:u0Et9YDc/Tk4Po4wSSqodPF9C2vTgYkcrVJM4c:etWDcw4o4Ts/9CkkCm4
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-1A7A-47B6-6E48-5C13FC13DCB6}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\99f756c05083a3fb157e2ff439c7baed.sh	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\99f756c05083a3fb157e2ff439c7baed.sh\ = "sh"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\99f756c05083a3fb157e2ff439c7baed.sh\Clsid\ = "{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}\ProgID\ = "99f756c05083a3fb157e2ff439c7baed.sh"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\99f756c05083a3fb157e2ff439c7baed.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\99f756c05083a3fb157e2ff439c7baed.sh\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1A7A-47B6-6E48-5C13FC13DCB6}\ = "sh"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3964 wrote to memory of 2284	3964	regsvr32.exe	83
PID 3964 wrote to memory of 2284	3964	regsvr32.exe	83
PID 3964 wrote to memory of 2284	3964	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\99f756c05083a3fb157e2ff439c7baed.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\99f756c05083a3fb157e2ff439c7baed.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2284

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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