Analysis

  • max time kernel
    145s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2023, 19:07

General

  • Target

    NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe

  • Size

    48KB

  • MD5

    5b4ba0736de2c672a4038f1a50e09c39

  • SHA1

    9f130eb1dfbd05bc779877e56c4bc48fd338151c

  • SHA256

    27e1ea9c0769d140e25bafbb989c48b8db08132ec71b17436bb11d6366a3fed8

  • SHA512

    9659daa4f0cfa6e8647fb984c4a21cfe67d9161cea25cccf122a5b529c55b2c5c61f6333b677687f20ba13803d69757610b1a4ac06cce858dd0491a3272dbffe

  • SSDEEP

    1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb6Impc:BbdDmjr+OtEvwDpjMa

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3212
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1148

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          48KB

          MD5

          f2cbe867c57210bb85c2c75087d74027

          SHA1

          1f016719e738fc088068a0da6b355f44b8725bda

          SHA256

          a719b121bed63b006908c8ba371acbe3f26743bcd1914fde58be4cd31e905513

          SHA512

          081b71f5ff267aab8c503df3d7027eff071857b7ba38c949980e19c4aeeb5e27b1ae5c52d4aff9ca97fe0a6f8c2c3214e35e6b2d2e2e7fd3deb42aaca7a8819e

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

          Filesize

          48KB

          MD5

          f2cbe867c57210bb85c2c75087d74027

          SHA1

          1f016719e738fc088068a0da6b355f44b8725bda

          SHA256

          a719b121bed63b006908c8ba371acbe3f26743bcd1914fde58be4cd31e905513

          SHA512

          081b71f5ff267aab8c503df3d7027eff071857b7ba38c949980e19c4aeeb5e27b1ae5c52d4aff9ca97fe0a6f8c2c3214e35e6b2d2e2e7fd3deb42aaca7a8819e

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

          Filesize

          48KB

          MD5

          f2cbe867c57210bb85c2c75087d74027

          SHA1

          1f016719e738fc088068a0da6b355f44b8725bda

          SHA256

          a719b121bed63b006908c8ba371acbe3f26743bcd1914fde58be4cd31e905513

          SHA512

          081b71f5ff267aab8c503df3d7027eff071857b7ba38c949980e19c4aeeb5e27b1ae5c52d4aff9ca97fe0a6f8c2c3214e35e6b2d2e2e7fd3deb42aaca7a8819e

        • memory/1148-23-0x0000000002000000-0x0000000002006000-memory.dmp

          Filesize

          24KB

        • memory/1148-22-0x0000000000800000-0x0000000000806000-memory.dmp

          Filesize

          24KB

        • memory/1148-29-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3212-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3212-1-0x0000000002280000-0x0000000002286000-memory.dmp

          Filesize

          24KB

        • memory/3212-2-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3212-3-0x0000000002280000-0x0000000002286000-memory.dmp

          Filesize

          24KB

        • memory/3212-5-0x00000000021A0000-0x00000000021A6000-memory.dmp

          Filesize

          24KB