Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-02-2024 06:45

General

  • Target

    9b077395bb1492f96e587f10a50160ca.exe

  • Size

    29KB

  • MD5

    9b077395bb1492f96e587f10a50160ca

  • SHA1

    ddb34fc67d3915ece8b86ae93ac12aa119bb6bd8

  • SHA256

    601516287e8a0c184f749f70436e27b654785457a8f3a11c5fd1220abf884af6

  • SHA512

    2c7e1bf12891c8ddc972d814d233214c811b03e187ccf9fb4f349927b29a9d3393771db4b87a8f8e134f5116d59d9c4547c9ba4fa3c41bfce524329790b25d17

  • SSDEEP

    768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFYm:SKcR4mjD9r823Fb

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b077395bb1492f96e587f10a50160ca.exe
    "C:\Users\Admin\AppData\Local\Temp\9b077395bb1492f96e587f10a50160ca.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1528
    • 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:2496

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

    59f21966c0fbe599294bbef60caea6b0

    SHA1

    87637365573c4051d0100ba692648c1c1b783dc2

    SHA256

    79bf16c9f1ea4dd83ad34edf9e4f56fabd96c1e3a04bd1dd9ab400e567feea8e

    SHA512

    9264c1dd879b33c2302a02b812c5ed5062e3edf6e24ef0ae5be779612c575b176e828aa7625375baece7d7d5ab1540b13ee7454b2af73728e16b8cb0cf6ac503

  • C:\Users\Admin\AppData\Local\Temp\QnSz070knUJAg5I.exe

    Filesize

    29KB

    MD5

    9e61f7df8ee773b0cfd9c43ac69075ec

    SHA1

    f15112b735d1a7788db33f420562f30c0db94b8c

    SHA256

    365d844d7b186f019fba6a86bffdf2bd4d60fb963dc9626bd5e95ca36dbe2dbe

    SHA512

    91f8c489162c576c4405f50c6923e839636af8a8aa57b860964b00e894b7a90809920d86e270e77b190a66ab92dadb7cb8bbda5a529c97592a47cd7f47a7d84b

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • memory/1528-0-0x0000000000480000-0x0000000000497000-memory.dmp

    Filesize

    92KB

  • memory/1528-7-0x0000000000480000-0x0000000000497000-memory.dmp

    Filesize

    92KB

  • memory/2496-9-0x0000000000D00000-0x0000000000D17000-memory.dmp

    Filesize

    92KB