Overview

overview

8

Static

static

3

3f9a692c21...07.exe

windows7-x64

8

3f9a692c21...07.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    217s
  • max time network
    247s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 21:19

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General

  • Target

    3f9a692c21a0fcf79df71d41d1be9745e1e6b30733c94ff0cb0cd51e0f3c4c07.exe

  • Size

    3.0MB

  • MD5

    8b627ea98f33d152cc19d5031197b6b9

  • SHA1

    382dff07bd1408d6735c1308b4e71e9bd3ed0176

  • SHA256

    3f9a692c21a0fcf79df71d41d1be9745e1e6b30733c94ff0cb0cd51e0f3c4c07

  • SHA512

    6d0e6827ff9fd16f289b710070febc02ffdbe38fbbb96ff7869ad3900427e344375006c612261ae048ae8916376e1b80547c4cc7efa3c311f77ecea3c44184e7

  • SSDEEP

    49152:D7TvfU+8X9GrNOsva5RbKhF3ANkTTlE6NpFQi/DXD0cR:Q+8X9G3vP3AMKkcKDtR

Score
8/10
persistence

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 4 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks SCSI registry key(s) 3 TTPs 36 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of FindShellTrayWindow 24 IoCs
  • Suspicious use of SendNotifyMessage 20 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f9a692c21a0fcf79df71d41d1be9745e1e6b30733c94ff0cb0cd51e0f3c4c07.exe
    "C:\Users\Admin\AppData\Local\Temp\3f9a692c21a0fcf79df71d41d1be9745e1e6b30733c94ff0cb0cd51e0f3c4c07.exe"
    1⤵
      PID:3692
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2556
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies registry class
      PID:1596
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3952
    • C:\Windows\system32\werfault.exe
      werfault.exe /hc /shared Global\acbbfdff1f934070b6cdd04b5a6a64fc /t 564 /p 1596
      1⤵
        PID:2784
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Suspicious use of SetWindowsHookEx
        PID:944
      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
        1⤵
          PID:4660

        Network

              MITRE ATT&CK Enterprise v15

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              Downloads

              • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133416043654862598.txt
                Filesize

                75KB

                MD5

                62d81c2e1e8b21733f95af2a596e4b18

                SHA1

                91c005ecc5ae4171f450c43c02d1ba532b4474c6

                SHA256

                a5596f83717bf64653b95ffe6ec38f20e40fd928456d5e254a53a440804d80b6

                SHA512

                c7f349acf55694ff696750c30a25c265ff07ced95e4d2a88fa2829d047ca3b3007dc824613a8c403c7613085aca4212155afe03f8f237c0d7781fd87e1fb8a7c

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