Analysis

  • max time kernel
    80s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2024 00:50

General

  • Target

    2024-09-06_a0de0f709b02e6e104b48a88aa47e807_cryptolocker.exe

  • Size

    40KB

  • MD5

    a0de0f709b02e6e104b48a88aa47e807

  • SHA1

    e1210e5ed862cb11e696c87874c1d2970f77bee0

  • SHA256

    987a9d931ebdad2096efeecd26ab083956500048fbaf5b1fdbc7b5a99815a706

  • SHA512

    268f7c8adbef2c5209ef4b76b59443cbf64b753f7dc807bb247d8e0c3fac2daeb339bd14e5abbfa7d39e366a92e6c5329c6d40f6178df7b059ed965958f41d4e

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+V:ZzFbxmLPWQMOtEvwDpjLeJAsKcQ

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\2024-09-06_a0de0f709b02e6e104b48a88aa47e807_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_a0de0f709b02e6e104b48a88aa47e807_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4560
    • 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:3368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    c1bbdb588564374137e53b0ca040161a

    SHA1

    02dead48aa1b4406adb8d2fa00ec2b31a409b767

    SHA256

    6c4ab0c935b1dc0ae97119ca3e1214881db4d7c5b6a0bb4c456793ec0456696d

    SHA512

    5fe7175d4bffe286f8518ae04943b228874117be05b493f8a663118d7128fa4ffa80cc1668b60d41499d0fb778bb1ac13a5577a4c585e343bebe1b066e9b86e6

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3368-20-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3368-19-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/4560-0-0x00000000004D0000-0x00000000004D3000-memory.dmp

    Filesize

    12KB

  • memory/4560-1-0x0000000000720000-0x0000000000726000-memory.dmp

    Filesize

    24KB

  • memory/4560-2-0x0000000000720000-0x0000000000726000-memory.dmp

    Filesize

    24KB

  • memory/4560-3-0x0000000000740000-0x0000000000746000-memory.dmp

    Filesize

    24KB

  • memory/4560-17-0x00000000004D0000-0x00000000004D3000-memory.dmp

    Filesize

    12KB