Analysis

  • max time kernel
    139s
  • max time network
    128s
  • 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, 21:43

General

  • Target

    2024-10-14_961af88fb0130ed1f19541bf8e9e1637_cryptolocker.exe

  • Size

    97KB

  • MD5

    961af88fb0130ed1f19541bf8e9e1637

  • SHA1

    caa96348b8dee060ba95f59b4bd1f307931564d4

  • SHA256

    5c9e1ecb179bda836d82c7372b8c267761b17bb390f17f9b660f7c34bc1aa8f3

  • SHA512

    75be250e21f5eceec920f29e1e90b9ef1ef23c59ac82f2f33b1082e6dbdced2fe203baf723dc1d6cc4ccfa46427ab26a13f7638ab808c3b369864e5eddacd81b

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/kOk:zCsanOtEvwDpjB2

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 4 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_961af88fb0130ed1f19541bf8e9e1637_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-14_961af88fb0130ed1f19541bf8e9e1637_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1644
    • 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:2592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    97KB

    MD5

    37a2676ec28a0cc6c11c1b7848b2fc93

    SHA1

    b0707440af4f9f32d3fd7977b6b23bc631dc7637

    SHA256

    7c8c32775be7baf634e8adfe9b5837d358974f90448afe909d79d32395d7d493

    SHA512

    0687633d7a3d6fe62127f015975a231934187ee738f588df94d8646186b6f6d0021a19893a274d08475bb72981953c8d84835eedb0cc6b55395f97f21434150a

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1644-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1644-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1644-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1644-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/1644-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2592-19-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB

  • memory/2592-25-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

  • memory/2592-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB