353bdfc3389591c96afb8e4fb24104a72d1c2548f364f682e2a42f21bf71e2a1

Analysis

max time kernel
90s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 04:42

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
8b6c9ed5e01ad1bd7c916ae65ab8257b.dll
Size 550KB
Sample240203-fb4heabheq
SHA256 353bdfc3389591c96afb8e4fb24104a72d1c2548f364f682e2a42f21bf71e2a1
MD5 8b6c9ed5e01ad1bd7c916ae65ab8257b
SHA1 861b59390629f5db4744c5b4a68b28637540261a
SHA512 2a17df4829928011237c3fbca87fc425dcc1361df8b93bf4089752b361bf07f5ee28c6060f0a01e2a13bc50e2719d35422aca7eb9d93823dfd5aae069ef6d39e
SSDEEP 6144:iXg4N/1idqbBNELG+a9fOk8+p/nURYvRmne/H3ADTLqX4k64dS7Hto2UXOpEZyQV:UfDi4BNELGFb8Ql4HmXyNo25E0QkhTi
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\{03C12478-A0D3-4291-A535-F6D16BA08D68}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8b6c9ed5e01ad1bd7c916ae65ab8257b.XunBHoSwf\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\ProgID\ = "8b6c9ed5e01ad1bd7c916ae65ab8257b.XunBHoSwf"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\ = "ExSwfTrc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8b6c9ed5e01ad1bd7c916ae65ab8257b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8b6c9ed5e01ad1bd7c916ae65ab8257b.XunBHoSwf	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8b6c9ed5e01ad1bd7c916ae65ab8257b.XunBHoSwf\ = "ExSwfTrc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8b6c9ed5e01ad1bd7c916ae65ab8257b.XunBHoSwf\Clsid\ = "{03C12478-A0D3-4291-A535-F6D16BA08D68}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 1560	2448	regsvr32.exe	84
PID 2448 wrote to memory of 1560	2448	regsvr32.exe	84
PID 2448 wrote to memory of 1560	2448	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8b6c9ed5e01ad1bd7c916ae65ab8257b.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8b6c9ed5e01ad1bd7c916ae65ab8257b.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1560

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

Replay Monitor

Loading Replay Monitor...

Downloads