Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2024, 20:45

General

  • Target

    2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe

  • Size

    82KB

  • MD5

    fac964691c02085ca0ca3e821e0b38f9

  • SHA1

    d4fce9daa1f0c2134cff53fcc83230b67f6cd417

  • SHA256

    2659d30fe3bcb2cae7f769e0d6f238309124d8d317dc6a583e5f7a8fd95debbf

  • SHA512

    e314d14a815f523e9b17a2bdfabd27df18107e3559d873672309ad711755bc4d00715292d304ea3ccf1e3d9594fa403b5bfb9196ceda5ba59ba9aa3d5bbe5979

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qu+:zCsanOtEvwDpj9

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4500
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:888

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\misid.exe

          Filesize

          82KB

          MD5

          00c7cc707dddbc967935d7ab3a06f3bc

          SHA1

          287ca024003ce53e4c1a2822bbf5383a5ede4937

          SHA256

          fb6c44ead5d436a339176b110da8225f9883f694d04e1649f0c79fce3f34cbc6

          SHA512

          1efa9c4c23d06f102c4d4f21245be88c7ca122819093953a0b5c26491757c0b2b03c991f8a814b1b4f75690f98e1c308eeb9c9840f9e8d502cade6a9ac0c0bd7

        • C:\Users\Admin\AppData\Local\Temp\misids.exe

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/888-26-0x0000000002050000-0x0000000002056000-memory.dmp

          Filesize

          24KB

        • memory/888-20-0x0000000002070000-0x0000000002076000-memory.dmp

          Filesize

          24KB

        • memory/888-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/888-49-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/4500-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/4500-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4500-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4500-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/4500-19-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB