Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 00:27

General

  • Target

    620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe

  • Size

    32KB

  • MD5

    2118a903842d656c15a699668bfb65d0

  • SHA1

    27a02894dbd1cdf63293c32644ef524d9ca90d76

  • SHA256

    620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e

  • SHA512

    825f019993c7d9ae0cd098183164bd0f77ec54fb0ec1dac973f846b42bfe4b515c7f430c997aca344558b5df0ae155f3edf320929fba0cb417bca4d24c9750a2

  • SSDEEP

    768:X9J/3FzjgfanEGx8V36unjv88tznuRU65Y4gpph1ePVCM/sBndzqL:N5VzcfA/6LrVpL74gfh16nG5s

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\620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
    "C:\Users\Admin\AppData\Local\Temp\620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4384
    • 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:2388

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

    348KB

    MD5

    4832685363dec115d72ae04eed20e08a

    SHA1

    3cdc7d28d80e82f0272de123378f4e5061e8526c

    SHA256

    c7f1f1b6cf47748676ee1361321ac120f09b77e415cb1a1bf10f972c2512d3d1

    SHA512

    8b16220c7dcf83ac39e5a8c4351cadb70c524337d186bf04aa672af50aa1f10bcde2d99245cdaf064430a60e031bfbeb24b0fe79425002712a4700eb7c8e302a

  • C:\Users\Admin\AppData\Local\Temp\a3VADtfutAwHbN9.exe

    Filesize

    32KB

    MD5

    d5ca06945d530a759fa2ef5c752d3010

    SHA1

    33ceddd4c9b31d1ad49fb3982eaeb46db3b796ba

    SHA256

    2b5cef6f927967be6707c539761179d580e9a47c83fea29a8e4d56af782e5253

    SHA512

    b36018a04a421883a561e8b004a8e898492feed7a0299cbf2b276e6c68bcf97af0bde082d9c8ce165edeca6684e0356e8786ec606bfe2e50f489f9ee66334d16

  • C:\Windows\CTS.exe

    Filesize

    27KB

    MD5

    a6749b968461644db5cc0ecceffb224a

    SHA1

    2795aa37b8586986a34437081351cdd791749a90

    SHA256

    720023737d7ff700818f55612ba069a609a5ddea646bb3509b615ee3523a4ca2

    SHA512

    2a276816290746ed914af9cf6427aef31ce9395b8e9937090e329a8f74fb84c62d15b196e13346caa086842b3f5f549b9eb20cbf422d18c9c1b63e6342ea90b4

  • memory/2388-9-0x0000000000490000-0x00000000004A8000-memory.dmp

    Filesize

    96KB

  • memory/2388-33-0x0000000000490000-0x00000000004A8000-memory.dmp

    Filesize

    96KB

  • memory/4384-1-0x0000000000A70000-0x0000000000A88000-memory.dmp

    Filesize

    96KB

  • memory/4384-8-0x0000000000A70000-0x0000000000A88000-memory.dmp

    Filesize

    96KB