Analysis

  • max time kernel
    136s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-10-2024 00:30

General

  • Target

    2024-10-18_35f21d9f92c6df07c896c94ec8f0fd31_cryptolocker.exe

  • Size

    37KB

  • MD5

    35f21d9f92c6df07c896c94ec8f0fd31

  • SHA1

    c62c49c8143c95f00564e0d63f1abe19dc423b1d

  • SHA256

    f11e6373aac41c4f224b417a31c1fa0c06b07066b977fe02234e8a28eae5c12c

  • SHA512

    d29c8749d051da56824f42941ced7c56ca69fe0b1292c979667a49c2d62bda1e7bcb7b8cb7c1d1ab3b7048f58db1f0c7036833c18f4e870689901312f9871ca2

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLen7CDdL:ZzFbxmLPWQMOtEvwDpjLeWJL

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
  • 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\2024-10-18_35f21d9f92c6df07c896c94ec8f0fd31_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-18_35f21d9f92c6df07c896c94ec8f0fd31_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3596
    • 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:2704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    889f0584108974d34958df77a6b49e6e

    SHA1

    4fd8becc9d382e4744825781eda523c43b1b1613

    SHA256

    04949d819613c6fcb870b9488a57dd272495edb03e9b5e78c75a55d5d0669cbf

    SHA512

    dff1ea9e6c06336d33563ff6e2a78308daa0882b2f4ce793c599f913ad1206f0a34596cbc35a13e258a850fffc25042e42f2fcde7d630845ccee30e025ea912f

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2704-18-0x0000000000460000-0x00000000004A0000-memory.dmp

    Filesize

    256KB

  • memory/2704-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2704-21-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/3596-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3596-1-0x0000000000770000-0x0000000000776000-memory.dmp

    Filesize

    24KB

  • memory/3596-2-0x0000000000770000-0x0000000000776000-memory.dmp

    Filesize

    24KB

  • memory/3596-3-0x0000000000790000-0x0000000000796000-memory.dmp

    Filesize

    24KB

  • memory/3596-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB