Analysis

  • max time kernel
    30s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2023 20:22

General

  • Target

    1bc2773278db821664d3e40252a56f8f.exe

  • Size

    635KB

  • MD5

    1bc2773278db821664d3e40252a56f8f

  • SHA1

    7860f17d866f74d0a5e1317e853251e9c7062e3b

  • SHA256

    23ce8f18319d943325c46641dc8f7d3bcfb87f7008e4cc25b1262d188f397439

  • SHA512

    10f6759f42ae811e27411ebe3e856d7319134847c68d4d7def5a80911fb30e1a1c8b0bc6aa6ea9d7dd6ebe0b9bd54c1709ead40afd7293108f30f38b0213b09f

  • SSDEEP

    12288:I3TdtLW5WIj1YSSdFxsBSXyMzBUWb9tx/9AgHLo8OW+rB:iDsj1dEcBcJ9nnx/igrp+

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • AutoIT Executable 9 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 10 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1bc2773278db821664d3e40252a56f8f.exe
    "C:\Users\Admin\AppData\Local\Temp\1bc2773278db821664d3e40252a56f8f.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT /delete /yes
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2748
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
          PID:2968
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\svchost .exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2684
        • C:\Windows\SysWOW64\at.exe
          AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\svchost .exe
          3⤵
            PID:2828

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Cab7E96.tmp

        Filesize

        65KB

        MD5

        ac05d27423a85adc1622c714f2cb6184

        SHA1

        b0fe2b1abddb97837ea0195be70ab2ff14d43198

        SHA256

        c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

        SHA512

        6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

      • C:\Users\Admin\AppData\Local\Temp\Tar7EE7.tmp

        Filesize

        171KB

        MD5

        9c0c641c06238516f27941aa1166d427

        SHA1

        64cd549fb8cf014fcd9312aa7a5b023847b6c977

        SHA256

        4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

        SHA512

        936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

      • C:\Windows\SysWOW64\setting.ini

        Filesize

        2B

        MD5

        e0aa021e21dddbd6d8cecec71e9cf564

        SHA1

        9ce3bd4224c8c1780db56b4125ecf3f24bf748b7

        SHA256

        565339bc4d33d72817b583024112eb7f5cdf3e5eef0252d6ec1b9c9a94e12bb3

        SHA512

        900110c951560eff857b440e89cc29f529416e0e3b3d7f0ad51651bfdbd8025b91768c5ed7db5352d1a5523354ce06ced2c42047e33a3e958a1bba5f742db874

      • C:\Windows\SysWOW64\svchost .exe

        Filesize

        635KB

        MD5

        1bc2773278db821664d3e40252a56f8f

        SHA1

        7860f17d866f74d0a5e1317e853251e9c7062e3b

        SHA256

        23ce8f18319d943325c46641dc8f7d3bcfb87f7008e4cc25b1262d188f397439

        SHA512

        10f6759f42ae811e27411ebe3e856d7319134847c68d4d7def5a80911fb30e1a1c8b0bc6aa6ea9d7dd6ebe0b9bd54c1709ead40afd7293108f30f38b0213b09f

      • memory/2432-89-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-88-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-0-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-90-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-91-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-92-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-93-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-95-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-100-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

      • memory/2432-101-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB