de518717f7268c0f2eb982c6828bb721f3929ca3cd2e6939414106c90aaa5de2

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 04:32

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General

Target
c4fbe9af5eb88212ce0124ebc3715ec3.dll
Size 635KB
Sample240313-e6ft6acg4w
SHA256 de518717f7268c0f2eb982c6828bb721f3929ca3cd2e6939414106c90aaa5de2
MD5 c4fbe9af5eb88212ce0124ebc3715ec3
SHA1 2a4585e9458c48bfb2dc3e9d251e47818a2508b8
SHA512 a81f3c7291ebad7a30bcdbf3f2c6f44e3b73de662246ad20db64feb27fe4bb80829851c1d22d45dbef374150046e02994b7868fb031ff9a363621824f205f9e1
SSDEEP 12288:QM0t9FNcxDMmfrLAF8rZIRf2MmsX4ehPhGJmhM/fO79s:QtjNcXnVInv4eFhzhc
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-7783-E89B-4F86-E3CA28CA2664}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\c4fbe9af5eb88212ce0124ebc3715ec3.axc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}\ProgID\ = "c4fbe9af5eb88212ce0124ebc3715ec3.axc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}\ = "axc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c4fbe9af5eb88212ce0124ebc3715ec3.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\c4fbe9af5eb88212ce0124ebc3715ec3.axc\ = "axc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\c4fbe9af5eb88212ce0124ebc3715ec3.axc\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\c4fbe9af5eb88212ce0124ebc3715ec3.axc\Clsid\ = "{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7783-E89B-4F86-E3CA28CA2664}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 4760	2496	regsvr32.exe	88
PID 2496 wrote to memory of 4760	2496	regsvr32.exe	88
PID 2496 wrote to memory of 4760	2496	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c4fbe9af5eb88212ce0124ebc3715ec3.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c4fbe9af5eb88212ce0124ebc3715ec3.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4760

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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