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Analysis

  • max time kernel
    121s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 13:46

General

  • Target

    389516b53756da46ee90b831ba8943ba.dll

  • Size

    164KB

  • MD5

    389516b53756da46ee90b831ba8943ba

  • SHA1

    0e41f0553920fda2e608523e99dfb5a76541417b

  • SHA256

    6d511cc2ae79502fe78a4e2a12790563b1af3743e575f1ff1a572a5f2737c292

  • SHA512

    d723c0f6792b1859a369374d4d024c463565c6c9eb40ed7476a9cdf90492e4c2114fdf5d4d0d2186756810f442daeb10d684eed30de348bd085dc71133f02237

  • SSDEEP

    3072:TDkvq9kS+RwTK4iDY2knwnLy4egAOd1gKDanQObo3/ejtopVthOK8+ZTWsJpEzAL:TDjrKwTVi07CO4eDOd1gK+do2ZopMK82

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 28 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1248
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\389516b53756da46ee90b831ba8943ba.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2172
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\389516b53756da46ee90b831ba8943ba.dll,#1
        3⤵
        • Modifies visibility of file extensions in Explorer
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2832
        • C:\Windows\SysWOW64\explorer.exe
          explorer C:\Users\Admin\AppData
          4⤵
            PID:2676
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:2756

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1248-7-0x0000000002100000-0x0000000002101000-memory.dmp

      Filesize

      4KB

    • memory/2756-14-0x0000000003730000-0x0000000003731000-memory.dmp

      Filesize

      4KB

    • memory/2756-13-0x00000000039C0000-0x00000000039D0000-memory.dmp

      Filesize

      64KB

    • memory/2756-15-0x0000000003730000-0x0000000003731000-memory.dmp

      Filesize

      4KB

    • memory/2832-0-0x0000000010000000-0x000000001001B000-memory.dmp

      Filesize

      108KB

    • memory/2832-4-0x0000000000170000-0x0000000000191000-memory.dmp

      Filesize

      132KB

    • memory/2832-6-0x0000000000170000-0x0000000000191000-memory.dmp

      Filesize

      132KB

    • memory/2832-8-0x0000000000170000-0x0000000000191000-memory.dmp

      Filesize

      132KB

    • memory/2832-11-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/2832-10-0x0000000077A9F000-0x0000000077AA0000-memory.dmp

      Filesize

      4KB

    • memory/2832-12-0x0000000010000000-0x000000001001B000-memory.dmp

      Filesize

      108KB