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, 08:27

General

  • Target

    2024-10-09_7a02413894d049fd14e635ef90077069_cryptolocker.exe

  • Size

    71KB

  • MD5

    7a02413894d049fd14e635ef90077069

  • SHA1

    e0338653757230c5dfb47df1277bc163e0ce93d4

  • SHA256

    9fb78bbca60d7b2489b44d05fd60d45ce254f2a159efe393889eb37f49e73e03

  • SHA512

    181b7ae41ae41e4b99370ec30a842f191bd854879273e7ecd5418aece3f895e527d4c2599323a7374d987dfec9b13f02cf77a5ac9ec762c5aaa7880af6469dee

  • SSDEEP

    1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9L:C4Q2c94OtEvwDpj4H8z2

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_7a02413894d049fd14e635ef90077069_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-09_7a02413894d049fd14e635ef90077069_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3124
    • 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:1468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    e639721455007bdf17ffe8a46340260c

    SHA1

    c216ffaa4a1739e7e82780c5f047452dbcfb76fe

    SHA256

    ca86b2aa6bf40e7d4fd04fed372d34fcf7aacbd2c3ccb8f5e187b090dfdc3c9e

    SHA512

    3057b4619c6493c8a2e49469e8f57cc4e421cde3eb7c107bfe2ac21fb7fe92b84909a391e18ae8bf8f54503907ab1067febb4165acd498051125e9fd18706ad1

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1468-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1468-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1468-46-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3124-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3124-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/3124-2-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/3124-3-0x00000000007E0000-0x00000000007E6000-memory.dmp

    Filesize

    24KB

  • memory/3124-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB