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Analysis

  • max time kernel
    95s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 04:22

General

  • Target

    2024-09-11_02b2a206b6d3f9c7e3c9d05a1f3e69af_cryptolocker.exe

  • Size

    39KB

  • MD5

    02b2a206b6d3f9c7e3c9d05a1f3e69af

  • SHA1

    d59de7ae972201eb2d00223a3cafe80486d73f79

  • SHA256

    80d8c92149b8701c58f1e9bc80febd64ad6717ab6b61aad8ee5cc34d8ea618dd

  • SHA512

    40c802a38a4f6b6f35a19a8e9c60b68ba2dfcbd4632ed91e2383587533f0b133cab461518a18c5436239d67eb61c46e231f8e3d067a4be946a848d329e77ae86

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD5:ZzFbxmLPWQMOtEvwDpjLeJAsKc5

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 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-11_02b2a206b6d3f9c7e3c9d05a1f3e69af_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-11_02b2a206b6d3f9c7e3c9d05a1f3e69af_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:436
    • 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:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    62b928084ece95d9c77606d9093129f6

    SHA1

    9aaba531a59b904950ffd57612a763f133ee2f04

    SHA256

    79b6b5fb8f9ebdadd0a5968f7ec46b9cc56c674aad6d2ef9ebf2efcaeb5e8b10

    SHA512

    217878a559ac91679e6e864e0f263d8cd831cfaf70e40729b7c2a01279b05ec41bb6b6c1601269460a7d037d3a74dfc0eb40613f9421da692a56a684c5283eb1

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/436-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/436-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/436-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/436-3-0x0000000002060000-0x0000000002066000-memory.dmp

    Filesize

    24KB

  • memory/436-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/2928-19-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/2928-25-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB