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
    09-10-2024 07:29

General

  • Target

    2024-10-09_80527ee3b25f1b8bcba41e5dc9f18c0b_cryptolocker.exe

  • Size

    94KB

  • MD5

    80527ee3b25f1b8bcba41e5dc9f18c0b

  • SHA1

    c33c7a09f30c1ea02d11b41e878030a93c8297b8

  • SHA256

    aed1cbc7febdf6a8e536809a176f153fcf838075169a23a7480e8406f78089cf

  • SHA512

    9c3458aff87985a3b7073930f819d084a0f9315fa2e85fe9c7ab8decac09a0247cee9617f0f4970911e0f778b01d7bbd3267a2bfda8e3cc937d9d76b8cb97d7e

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/km:zCsanOtEvwDpjBp

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\2024-10-09_80527ee3b25f1b8bcba41e5dc9f18c0b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-09_80527ee3b25f1b8bcba41e5dc9f18c0b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:548
    • 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:4788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    95KB

    MD5

    5a16b4b6e529efc03474e8a2e7c2f0d5

    SHA1

    aba8138129573c1b2f66e11f1e3ac4a3045422f7

    SHA256

    c43e34df6f845c47ffd9417f32e609e26ac3b02ddf87f1314f17b3280dcebb2e

    SHA512

    0548a56a0ff3e95a60c82ded622916bf6e6d11478ccc1d4a13323b4700990dc775f33f229ecdb328e7bcf3d114dd9eb372fb9d0233d844f5e53f9f97799c7390

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/548-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/548-1-0x0000000002150000-0x0000000002156000-memory.dmp

    Filesize

    24KB

  • memory/548-2-0x0000000002150000-0x0000000002156000-memory.dmp

    Filesize

    24KB

  • memory/548-3-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/548-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4788-19-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/4788-20-0x0000000002090000-0x0000000002096000-memory.dmp

    Filesize

    24KB

  • memory/4788-46-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB