Analysis

  • max time kernel
    140s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28/12/2023, 22:43

General

  • Target

    fd917701441c794e7322dc63eabd1622.exe

  • Size

    116KB

  • MD5

    fd917701441c794e7322dc63eabd1622

  • SHA1

    30cef53fc35947faa8b6c79af35514a7db133108

  • SHA256

    dffa20a1d89fe56463403197911304bec845d0e13a0c21fb98e1e32b3342d534

  • SHA512

    4af5b6728b326316f83ed641e04114ed9763117c79a55c3fcdd1ac7ed1cd475df6687d1a290fc09dde88b226cb8834c8ff128157e553eea3b3fe4b6886d36d6c

  • SSDEEP

    3072:SKcWmjRrz3C1HBFqrAbwPpfnWFu0OWFTTM1C4Bh6P1UmlI:hGOhFlbYpfWA0RFvwh4lI

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd917701441c794e7322dc63eabd1622.exe
    "C:\Users\Admin\AppData\Local\Temp\fd917701441c794e7322dc63eabd1622.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\EbqJEmco5dtLUfN.exe
      C:\Users\Admin\AppData\Local\Temp\EbqJEmco5dtLUfN.exe
      2⤵
      • Executes dropped EXE
      PID:1932
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1344

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\EbqJEmco5dtLUfN.exe

          Filesize

          87KB

          MD5

          015207664f86b0d334146d7bc7551a0f

          SHA1

          b466beca074c3c4a500bfa00fd691cf0fe300d8c

          SHA256

          3212cacc4d669f381ad1048e43726ec2841de32135438992c55f792bf03beafc

          SHA512

          6ced0d294fd9c330cab20739336c6cd4c1e202d521fd41c6fd6bdfe7e720247c84ac10a7e25855d3cc9b08f2d9251798eb52383527a9363c5126a6b205ff0657

        • C:\Windows\CTS.exe

          Filesize

          29KB

          MD5

          70aa23c9229741a9b52e5ce388a883ac

          SHA1

          b42683e21e13de3f71db26635954d992ebe7119e

          SHA256

          9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

          SHA512

          be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

        • memory/1344-16-0x0000000000820000-0x0000000000837000-memory.dmp

          Filesize

          92KB

        • memory/1368-0-0x0000000000AA0000-0x0000000000AB7000-memory.dmp

          Filesize

          92KB

        • memory/1368-15-0x0000000000120000-0x0000000000137000-memory.dmp

          Filesize

          92KB

        • memory/1368-14-0x0000000000120000-0x0000000000137000-memory.dmp

          Filesize

          92KB

        • memory/1368-11-0x0000000000AA0000-0x0000000000AB7000-memory.dmp

          Filesize

          92KB

        • memory/1368-21-0x0000000000120000-0x0000000000137000-memory.dmp

          Filesize

          92KB