Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 06:58

General

  • Target

    ShellExtHelper64.dll

  • Size

    962KB

  • MD5

    a32c987eec0f9a19777381e86917faf5

  • SHA1

    79e76d299fa62fdfa12c2ed5491b3d59d0650df7

  • SHA256

    d664e87b7277da8cc721703899d1d13f61f1c330c82fad9141afe172ee5fc420

  • SHA512

    3049fef09fb0a687bc61ae95eb2a833a0c080154cd8090f508f323ec9589012f37c789fc62ac303da2d7bb0f969c9b98eb1edcaac8a8fc8a0700fde5087bceef

  • SSDEEP

    12288:Lh8XJTkkVGkIk+B1qibM7zMy1owYcwbPLbTF:oTF34jqyM74moj3

Score
7/10

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 2 IoCs
  • Registers COM server for autorun 1 TTPs 3 IoCs
  • Modifies registry class 35 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ShellExtHelper64.dll
    1⤵
    • Modifies system executable filetype association
    • Registers COM server for autorun
    • Modifies registry class
    PID:2044

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

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Downloads