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Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2024, 18:59

General

  • Target

    573ffa96a1eef92c16afe4abb49eba66.exe

  • Size

    85KB

  • MD5

    573ffa96a1eef92c16afe4abb49eba66

  • SHA1

    22a1786eea9b288b700f2d06ee81f3c1f7752a0e

  • SHA256

    c79979c67ec4b3318e16cc6fed8015dd9a51cef8ecd9210c6e68e66df3c6868b

  • SHA512

    bc9f87aa028ca5d0590c164b05ae5e5f921edad7122d9ea1e9a6048f95a92ce2268bbeed906b07594d40a2e9431d6e32b1f49f439d1b66ab9f23e6ad7a040878

  • SSDEEP

    1536:SKcR4mjD9r823FwUWQtgyeHwVmW2CNbjcuBEJsJUmFlN+Qo0/:SKcWmjRrz3GUWQtLGwp2svcuuSJ3UL0/

Malware Config

Signatures

  • Executes dropped EXE 2 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 6 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
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\573ffa96a1eef92c16afe4abb49eba66.exe
    "C:\Users\Admin\AppData\Local\Temp\573ffa96a1eef92c16afe4abb49eba66.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4832
    • C:\Users\Admin\AppData\Local\Temp\RZEpLh0UP8cGOLp.exe
      C:\Users\Admin\AppData\Local\Temp\RZEpLh0UP8cGOLp.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 808
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4280
    • 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:1244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

    Filesize

    352KB

    MD5

    2a70c42089a7050040e87d8f8a9b03d6

    SHA1

    67f0b606f488a9bd9ef8e2710a856abdb04ea874

    SHA256

    8003d0b82cd12826b476b6d11aa8c82c98a4bd32ea9ec6ea73ad237552ff1397

    SHA512

    e1714d011b4caaa2ef9a831fce4d4ccd9826e42da2e2f0f0057057716843f82f6176daa13d7f57459182af0b4c29af8a8f6ac54bc0c30093eedd0c22a6e1c9f4

  • C:\Users\Admin\AppData\Local\Temp\RZEpLh0UP8cGOLp.exe

    Filesize

    56KB

    MD5

    e115521ba14b75f53dcdff087ec6898f

    SHA1

    87103a892bb514a93d485fba221bacb9da3aae25

    SHA256

    59b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29

    SHA512

    ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • memory/940-27-0x00007FFDE0440000-0x00007FFDE0DE1000-memory.dmp

    Filesize

    9.6MB

  • memory/940-32-0x00007FFDE0440000-0x00007FFDE0DE1000-memory.dmp

    Filesize

    9.6MB

  • memory/940-33-0x0000000000C50000-0x0000000000C60000-memory.dmp

    Filesize

    64KB

  • memory/940-39-0x00007FFDE0440000-0x00007FFDE0DE1000-memory.dmp

    Filesize

    9.6MB

  • memory/1244-8-0x0000000000940000-0x0000000000957000-memory.dmp

    Filesize

    92KB

  • memory/1244-43-0x0000000000940000-0x0000000000957000-memory.dmp

    Filesize

    92KB

  • memory/4832-0-0x0000000000760000-0x0000000000777000-memory.dmp

    Filesize

    92KB

  • memory/4832-7-0x0000000000760000-0x0000000000777000-memory.dmp

    Filesize

    92KB