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Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29/01/2024, 16:05

General

  • Target

    2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe

  • Size

    44KB

  • MD5

    dcb20518dc2b4c3e9ad260c77d9d0308

  • SHA1

    faf31b5db444a5b2519c7464f3dd37cbbdd086e8

  • SHA256

    a2068c381bcd1b588544799a8e72cdcb7e3c2dc7bd3f3f531a6ce8d9fc7040e4

  • SHA512

    478a3aaefd6cf910083d368b1f0d796f46612d482fa696fc2043f5e5f9126a21556e017290960a4b338a8789bce83a4a1eb9025fddc6cc2b47cba6e453e6d2a0

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YlPvn:bgGYcA/53GAA6y37QX

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\hasfj.exe

    Filesize

    44KB

    MD5

    1274db7164562bfcee4139dc1fafe6fe

    SHA1

    6df064933f1147c1349d3c7453dcfced6511f746

    SHA256

    7fcf92d6883885f7998def3d359b0bc2ed242453f0103ee849246cb3c893657f

    SHA512

    8cc235b640c8fde056aca24a68cfc424213e5262d787b4339823afe9f75aa91a0b8cad44cda039f3ea801e89ecc761f9bfd0771e0b8a617a14aeaf92126bcca1

  • memory/2700-15-0x0000000001C20000-0x0000000001C26000-memory.dmp

    Filesize

    24KB

  • memory/2700-16-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2876-0-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

    Filesize

    24KB

  • memory/2876-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

    Filesize

    24KB

  • memory/2876-2-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

    Filesize

    24KB