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Analysis

  • max time kernel
    132s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18/03/2024, 23:26

General

  • Target

    2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe

  • Size

    58KB

  • MD5

    30f05bcda962983978e77992e3678b8c

  • SHA1

    978a71064b0989978696e85b9eedac24b387e6d2

  • SHA256

    ae90896ec56f1870da6732c468eb7c723d8913d3a3de6eb710a259670eb23ccb

  • SHA512

    a8dfca61629d04902925414ea6d078b60de49ca04cea654dde895103c77622b21ebe34249e205c32eb07f8050214998dbcec0f608c168fc13c300c57fc86e9ed

  • SSDEEP

    768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5appB:z6QFElP6n+gKmddpMOtEvwDpj9aYaR

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 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\2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-18_30f05bcda962983978e77992e3678b8c_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2520

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    58KB

    MD5

    9cbf36c8d624e7d35156fc78c28737be

    SHA1

    6c44da4b8e869b87d82dc8d444e77ff61748a86c

    SHA256

    f83a5784288d91acfa47ed724048013b5531c77da746fcb6dfc80476486c605f

    SHA512

    fd555af44b4be66f53465a3e5d7fea7a7b259cb9f59ce1e6a08a171da5abcc9aaa8dac23a11513d9d7fd373eae91476ad8c50815bd6eee2a8a3006d57cc919f6

  • memory/2224-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2224-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2224-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/2224-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2224-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2224-13-0x0000000000680000-0x0000000000690000-memory.dmp

    Filesize

    64KB

  • memory/2520-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2520-19-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2520-23-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2520-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB