Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/09/2024, 00:25

General

  • Target

    2024-09-07_01b5391e8a1fe394c35ba754de2a5de9_cryptolocker.exe

  • Size

    72KB

  • MD5

    01b5391e8a1fe394c35ba754de2a5de9

  • SHA1

    5bdce9af877a2ce32977a15e73fb6636a84c9d5a

  • SHA256

    9b7c0c50628b98502af4b2468e66697e590c83cdf066af9700b4f2cccddcb6e4

  • SHA512

    dd47c1396d389e720b86083c876ed0e186890a0fc51fab3ef17bb459bc8846bfc1ca1ef6a9eb7d5346dbc543548ffe0c9a05fa460de9651a094dc973e20c9005

  • SSDEEP

    1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9f:C4Q2c94OtEvwDpj4H8zC

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\2024-09-07_01b5391e8a1fe394c35ba754de2a5de9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-07_01b5391e8a1fe394c35ba754de2a5de9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2164
    • 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:4400

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    73KB

    MD5

    f2a5d193595c9eb5d88f8b5152771039

    SHA1

    c7c32106bfc73c1565451def764de2d30300cd8e

    SHA256

    83ec5cb3bf166b9e477f7045c287c899722f31ae002956a2b15464be76665641

    SHA512

    a863facd17586b0dc520a3db54a4665571a65f2a1e0e3b129461efabaf20d82e1d795723b6b4479aeee46da13dd8cee4aee876e012de40a372841c343dede784

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2164-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2164-1-0x0000000000720000-0x0000000000726000-memory.dmp

    Filesize

    24KB

  • memory/2164-2-0x0000000000720000-0x0000000000726000-memory.dmp

    Filesize

    24KB

  • memory/2164-3-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/2164-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4400-19-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/4400-25-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB

  • memory/4400-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB