Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 22:14

General

  • Target

    2024-06-10_eac309ce599ba3c9b813d3c972d12a16_cryptolocker.exe

  • Size

    41KB

  • MD5

    eac309ce599ba3c9b813d3c972d12a16

  • SHA1

    baf65739a1f2688e12dad91dabebdde409355525

  • SHA256

    fe6bbcaec64241f1ca753d992e3d432818b7415b3b65868b8bc8181be9237f43

  • SHA512

    0c2cd9028eb0a94aae2fbdedd46c5957f9a04032188b3e0c01cca763f7143f7e042fb37e13d23ae0e0b7c85f91a4781b6c3d73a86408986bd34a6d0e570bfebd

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9hT:qDdFJy3QMOtEvwDpjjWMl7TG

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 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).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-10_eac309ce599ba3c9b813d3c972d12a16_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_eac309ce599ba3c9b813d3c972d12a16_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1144

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          41KB

          MD5

          e3961939866b0f0afb9ef6eee44f4577

          SHA1

          d36fa0cc909a13e946c7eaca8f98ec64ae4428ae

          SHA256

          4268f77ee4484f20f075d951e66ff87e1a47f87989565b6f98c40cc3623f802b

          SHA512

          457546c62bd2f0cff6d11032dd9674da3565536fa04f83f38800057707be0d40cc89561b47b32890f332e8424a24c422121c07a010da5244349e437fe0f3b316

        • memory/1144-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1144-19-0x0000000000340000-0x0000000000346000-memory.dmp

          Filesize

          24KB

        • memory/1144-26-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1144-27-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1368-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1368-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/1368-2-0x0000000000460000-0x0000000000466000-memory.dmp

          Filesize

          24KB

        • memory/1368-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/1368-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB