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Resubmissions

15/01/2025, 12:09

250115-pbg4vaskhs 10

15/01/2025, 12:05

250115-n9j6estndq 10

15/01/2025, 10:51

250115-mx374a1jft 10

Analysis

  • max time kernel
    150s
  • 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
    15/01/2025, 12:05

General

  • Target

    2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe

  • Size

    5.0MB

  • MD5

    075ca33b35164058d848ac1cb410dc42

  • SHA1

    5e37df9dd0fe22c3623453476d4a13f0b96826e0

  • SHA256

    a201e56c992edf1fd30417991b95127f99888c6d27747899f65504e6893ddd1d

  • SHA512

    f22cb008f65544cb00947ce6f7995aeba073473da25b3584b0217bc32c18a44807a05246ab4fff58a5d86e01be49e01efbe27045decc681f051edbe1e609d545

  • SSDEEP

    98304:XDaiEkmnfZ1aRxcSUDk36SAEdhX0Aj4Ouenmur2uuh:XDa6mnfZ1Cxcxk3ZAE70AjKem/uuh

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Wannacry family
  • Contacts a large (3261) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Executes dropped EXE 1 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Drops file in Windows directory 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4224
    • C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 216
        3⤵
        • Program crash
        PID:4768
  • C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
    C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe -m security
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    PID:3012
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4576 -ip 4576
    1⤵
      PID:4232

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\tasksche.exe

      Filesize

      3.4MB

      MD5

      4a392478a337b59561bbabcb609db282

      SHA1

      e1983828982ff6597d151169582c06f5f56ba453

      SHA256

      f5bea6ca87381376fea669c72f49c7b0bf8ef5fdf307cd5057a23dfa40917125

      SHA512

      7d9885e893abb73fe65cfa38c97303b4dd32a98f23972c5e7c12074fa2dd16d7bc84e4bcad7dffb8ec219cc3bd7a23ab272bbce5f4a3c3c6ea326fddab924fdd