Overview

overview

10

Static

static

3

935064aadf...b4.exe

windows7-x64

10

935064aadf...b4.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/06/2024, 00:17

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General

  • Target

    935064aadf93e4790cbc4d84a324f4e851c316a94f8a8c409e5fd165f20ff6b4.exe

  • Size

    3.1MB

  • MD5

    3fb337060f0ea713c705ac50554a2a39

  • SHA1

    6bd0d3de0c29d01380c1c170cf4dd62be3e1733c

  • SHA256

    935064aadf93e4790cbc4d84a324f4e851c316a94f8a8c409e5fd165f20ff6b4

  • SHA512

    a6571e7d9fc514cab1f43735aa5740be3506336380d496620d82466b720a540d99feb15d3887259faa4efda4f9512a38a6080787f7d87040a1170868357d6bf0

  • SSDEEP

    12288:/OkiCpat4FU6JXKqGMYK8ZgkPJQPDHvd:/Oeat4FzJXKRMYK2ge4V

Score
10/10
evasionpersistencetrojan

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
    persistence
  • UAC bypass 3 TTPs 12 IoCs
    evasiontrojan
  • Adds policy Run key to start application 2 TTPs 27 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 6 IoCs
    evasiontrojan
  • Looks up external IP address via web service 7 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 39 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\935064aadf93e4790cbc4d84a324f4e851c316a94f8a8c409e5fd165f20ff6b4.exe
    "C:\Users\Admin\AppData\Local\Temp\935064aadf93e4790cbc4d84a324f4e851c316a94f8a8c409e5fd165f20ff6b4.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • Adds policy Run key to start application
    • Disables RegEdit via registry modification
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2812
    • C:\Users\Admin\AppData\Local\Temp\cahsaiq.exe
      "C:\Users\Admin\AppData\Local\Temp\cahsaiq.exe" "-"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • System policy modification
      PID:3628
    • C:\Users\Admin\AppData\Local\Temp\cahsaiq.exe
      "C:\Users\Admin\AppData\Local\Temp\cahsaiq.exe" "-"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:1284
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2772

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\cahsaiq.exe
      Filesize

      4.4MB

      MD5

      9af273f7e98931587b2491c308effdf8

      SHA1

      4ec6265707cb7e1ea3c1b4d679c2c222f52eeb0b

      SHA256

      cbae867b9caae26bf0f511731c0e4d7ad0558d685b03ce675264fd2485cfb9ab

      SHA512

      06cefd99377f3b28dfe6757d71e43dc5e73b956b0f77eaefe0b852858495750ca9c5df1a8b60332c5a94e1cfdad1a712f2dea01ab3198067c77f5e4e84f5858e

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    • C:\Users\Admin\AppData\Local\fwwabcdbdxdpuztnftfwwa.cdb
      Filesize

      272B

      MD5

      8738176c8e086b8be8409eaf8cb42a47

      SHA1

      465097a4237dae27760ca9cbf1bdec4557383335

      SHA256

      8411ee38e136cfecefeb628b51308b28c3e8da424a1f07679f3ddaf8723eb9a2

      SHA512

      10a01adbbf24b994131b700d349dcf4c10fd043ea8de1d9452be3dd6226779d5e5a8c82890209629a68cef678824b0241a5150f074d6ea62aeb7fc071e318979

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    • C:\Users\Admin\AppData\Local\wyjykwirejaxndinqpmozoamyhuzqndty.gfc
      Filesize

      3KB

      MD5

      c52d7724e2a8d3b61637bcfca3e7a214

      SHA1

      a442ebef5844b643ee24f7650585cf3e38f8f619

      SHA256

      bbfc02c6878512f2489b21bc8727aace5b862ead15f816fcce1b66b007695341

      SHA512

      0f1b72b00e06e27111aec4d4123d37cd3b619db7e98dd0998b188a9cebc0209e9e400e7d8cf0a64723c5f49cbcb394232a0e25986742af86606c1ed9f0c905a5

      Download Submit