1654cc0b4f2bcc45d98894d87132258d977b931080c4a0fa2bb1774d1cc9c02e

Analysis

max time kernel
147s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 21:15

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General

Target
902c3a20fcddcc11a8c94a4dbfccd829.exe
Size 64KB
Sample240204-z4cd6sdabl
SHA256 1654cc0b4f2bcc45d98894d87132258d977b931080c4a0fa2bb1774d1cc9c02e
MD5 902c3a20fcddcc11a8c94a4dbfccd829
SHA1 4a90b9bf8ad64f826b1a96dad8ca4ba95e277023
SHA512 fc6d046339d6a1e3151b207c99b77f66bb091e1ebc850272c80056d5ef835207c94cef46202a7135c7fd1fe899b37d0337b15ef825206b6cf61c9b327aef271d
SSDEEP 768:1wHhmOcCV9QfrZw0X3wbV6yQs8jY5hn05WiUAtpTuwT8SEPj4dzql:1WIOgtw0nw5hlAjMPj49ql
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

adware persistence stealer

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a1g.exe,"	902c3a20fcddcc11a8c94a4dbfccd829.exe

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\{969BF939-52D0-45BE-99D8-C08746C90171}	902c3a20fcddcc11a8c94a4dbfccd829.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	902c3a20fcddcc11a8c94a4dbfccd829.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1984	902c3a20fcddcc11a8c94a4dbfccd829.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2648	1984	902c3a20fcddcc11a8c94a4dbfccd829.exe	98
PID 1984 wrote to memory of 2648	1984	902c3a20fcddcc11a8c94a4dbfccd829.exe	98
PID 1984 wrote to memory of 2648	1984	902c3a20fcddcc11a8c94a4dbfccd829.exe	98

C:\Users\Admin\AppData\Local\Temp\902c3a20fcddcc11a8c94a4dbfccd829.exe
"C:\Users\Admin\AppData\Local\Temp\902c3a20fcddcc11a8c94a4dbfccd829.exe"
1⤵
- Modifies WinLogon for persistence
- Installs/modifies Browser Helper Object
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 C:\Users\Admin\AppData\Local\Temp\shdoc1c.dll /s
  2⤵
  PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

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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