Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27/02/2024, 16:31

General

  • Target

    2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe

  • Size

    44KB

  • MD5

    803d9dadf159938adeb83567648ab343

  • SHA1

    71ddfc5728cee1db8dc8fcdd5c48505a28d1f366

  • SHA256

    53e0ef422be91a00ef1aefe10497f88599d72f454aa30ebae4547dbcad4b944b

  • SHA512

    82dbf5cb358eb4089405c3b58c1d973dd13f6405df5bb84f600ffc039b6ca132175a138b9283b65b41d308384f8c513ff938e4b85dd243ef58bf29855eac8e8f

  • SSDEEP

    768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5z:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+y

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    742e83926014d1124c9c4a7c5e298b14

    SHA1

    e2bdc867a653176f23e75c6a708644d444adea80

    SHA256

    6e35ee2716cb573f4508988af794c86134396573b75adf97d3d703966dfa9de5

    SHA512

    826587a7630275244a97d885b8bc03815b4c4129335c64f1687e2bf667cb624a58fe38e1329ada147bcc439533528f0d3d521349e21662814d7d29de8c6a0fd4

  • memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2056-19-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/2056-21-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2208-1-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2208-0-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2208-2-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2208-3-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2208-13-0x0000000001DF0000-0x0000000001DFB000-memory.dmp

    Filesize

    44KB

  • memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB