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Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/02/2024, 07:20

General

  • Target

    86476884d5cf831c852593bb8f9cc597.exe

  • Size

    41KB

  • MD5

    86476884d5cf831c852593bb8f9cc597

  • SHA1

    a70de34904c55e7c2f08d5e154406b1bf0d25d5d

  • SHA256

    e717ddb6adfb9a8f1cd374a38f10cacd29c169727329a2be11ca086da88b75c0

  • SHA512

    9cb18391c316a6bc350219906cea540b8e543951ec9423157279fded2977bdc527d9dfa3da903e88d034c96408dde2813c9691c5f27e40efc8baa20a0d07ce3a

  • SSDEEP

    768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+I7cVKh:s9Z3KcR4mjD9r8226+Eh

Malware Config

Signatures

  • Executes dropped EXE 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 7 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86476884d5cf831c852593bb8f9cc597.exe
    "C:\Users\Admin\AppData\Local\Temp\86476884d5cf831c852593bb8f9cc597.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4236
    • 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:896

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

    57KB

    MD5

    ee3cbd14785a1f73666933ba27fb2c7c

    SHA1

    1fc1209ae00bd92167649701b879ddee97d567e2

    SHA256

    44a3ca309cb2b2731735aff0ceca19eabebbdfbb0f92428d8871c50c82f3380b

    SHA512

    18860b265fb3d527e382c436a4008e51b6b0e3c70b85c286f0643aac836bac255782104f10316dd48a4ed2771af772567b112fda969e706e027e2196429faa6b

  • C:\Users\Admin\AppData\Local\Temp\J2WTFEuZQR82Ew2.exe

    Filesize

    41KB

    MD5

    8a64c97624ac86aa23cc0fdea55383a8

    SHA1

    6fb041bfad8d0464d60c07730a9cfab9312b70a9

    SHA256

    45ee6d78f141e69c54a5af74186436927284472b95a19329ff853ba37f9b3d1d

    SHA512

    7aead4b6b5115825448e17ecd04ebcafb9dca57565b5f0391e652682d8477789a22252603e567dfd12e57803a9b5a0bd7d660026f61dddbd4f089c5bff93d70e

  • C:\Windows\CTS.exe

    Filesize

    35KB

    MD5

    93e5f18caebd8d4a2c893e40e5f38232

    SHA1

    fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

    SHA256

    a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

    SHA512

    986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

  • memory/896-9-0x00000000006D0000-0x00000000006E7000-memory.dmp

    Filesize

    92KB

  • memory/896-32-0x00000000006D0000-0x00000000006E7000-memory.dmp

    Filesize

    92KB

  • memory/4236-0-0x0000000000C30000-0x0000000000C47000-memory.dmp

    Filesize

    92KB

  • memory/4236-7-0x0000000000C30000-0x0000000000C47000-memory.dmp

    Filesize

    92KB