Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/11/2024, 21:20

General

  • Target

    397e3dff9eee81b1d7ed2cccb04351afd61f2c7e50d5d987589b8d1a26e3599f.exe

  • Size

    110KB

  • MD5

    d286c6a3caf009d2d5219cda2cc9ea78

  • SHA1

    f18e9e5e9e736bc31f651ef5f06a4debba892160

  • SHA256

    397e3dff9eee81b1d7ed2cccb04351afd61f2c7e50d5d987589b8d1a26e3599f

  • SHA512

    ad09e87ecc4d1374ce47ac1e1f4f96835a4155414f996d6cda983129df047337361720872b4082964b0a59f4f89d2513beec61a7369e510c4f285b65d278aa88

  • SSDEEP

    3072:ZWrKR8W9Mj6yhPyKfXtAGsKG3ERrjjNB3+IQO6zTvPZid:GjYKlAhUBVB3pQOqg

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\397e3dff9eee81b1d7ed2cccb04351afd61f2c7e50d5d987589b8d1a26e3599f.exe
    "C:\Users\Admin\AppData\Local\Temp\397e3dff9eee81b1d7ed2cccb04351afd61f2c7e50d5d987589b8d1a26e3599f.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4068
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2032

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

    408KB

    MD5

    fb8c2d7abf85104c12e482800a6b827d

    SHA1

    5679e6b0175b215ca7fe80b6577c8ccf5fdf8739

    SHA256

    324fd5ab8d0bbca313a0f5860475817bc4f9c9bb38647fd535ff42b6c8447164

    SHA512

    b933726c30643484b89565c270ca42a89f2f19a00378f129f0b02f52ae09cdcbca5c93b8e7b326f6dc327cfeb1981e39d21f5b41a4d96ac4e30d5d7392508b01

  • C:\Users\Admin\AppData\Local\Temp\3pvi8BiCRjqqu5r.exe

    Filesize

    110KB

    MD5

    19dfc86da778946ab35648f69416a74e

    SHA1

    ccf078409160dcb384d45c0a3acbe9e90b02b2a4

    SHA256

    a515c73a74e140954176124f4746e00f321f8eeb106b577ff443a911acc60aa7

    SHA512

    2f32f15bbaaeb4a1a01c2ba26dd7dbd6a912bbb398fe50c8f0a4f7665678e94ac0e3be61838d1d89ef8712fcc30e3e778683282ccfc5a8fccae151c5b3cfdc71

  • C:\Windows\CTS.exe

    Filesize

    86KB

    MD5

    0f736d30fbdaebed364c4cd9f084e500

    SHA1

    d7e96b736463af4b3edacd5cc5525cb70c593334

    SHA256

    431b7f30b7f8d520f69066b03b8dccbb35a6cb40a53c5e2320c6b5acf96b2e34

    SHA512

    570a2f76d653414fedc12ed486f2bf0333dc860f52d70faa895d6b9951ac185317637d7b076e05c932f4c536259e19a952a716e9516d506d2a19de73c50f2566