Analysis

  • max time kernel
    125s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13/12/2023, 23:32

General

  • Target

    8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe

  • Size

    1.6MB

  • MD5

    dd038158781c1d250a98026b61d261d0

  • SHA1

    5b7ca483b79403d0290ccb9cf1fd296a11fdde5b

  • SHA256

    8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc

  • SHA512

    ebfeb415fe3cb866d0da02233a3a523a8c36314ea8a53698ea4a39743e5e99626e261fe5e41032dda27e4617b860600fb7d50d80e0e753b7620bba56463415e5

  • SSDEEP

    49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

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

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

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe
    "C:\Users\Admin\AppData\Local\Temp\8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe"
    1⤵
    • Drops startup file
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2820
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:3136
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:1156
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 1580
      2⤵
      • Program crash
      PID:4368
  • \??\c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
    1⤵
      PID:3396
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4404

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

              Filesize

              1.6MB

              MD5

              dd038158781c1d250a98026b61d261d0

              SHA1

              5b7ca483b79403d0290ccb9cf1fd296a11fdde5b

              SHA256

              8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc

              SHA512

              ebfeb415fe3cb866d0da02233a3a523a8c36314ea8a53698ea4a39743e5e99626e261fe5e41032dda27e4617b860600fb7d50d80e0e753b7620bba56463415e5

            • C:\Users\Admin\AppData\Local\Temp\grandUIAb6QwInRx3iUe6\information.txt

              Filesize

              3KB

              MD5

              178bd57fdc61eef86bd16e88c4c89776

              SHA1

              43e460bd958e44eae97080d95d90e232f25b2e8b

              SHA256

              7cad8f228829c37a4f6d79c6713e421d54fcfee9fbefaaea7df52e7c84bcf15b

              SHA512

              d823e143902f212c1c5d78c67b403b9d93b35c230198b53a2d5d9eec09609e88a7733bb400864a7ce563fa5a30dce3dd63697b1934d3e0f23ae05957a6766d28

            • C:\Users\Admin\AppData\Local\Temp\posterBoxb6QwInRx3iUe6\QdX9ITDLyCRBWeb Data

              Filesize

              92KB

              MD5

              90a4e3db168e5bdc6b5e562ce7f41a06

              SHA1

              2bf235c33b3395caefc1b9f1a280f83422f94d40

              SHA256

              fdd37b06f981e619d6690edeaa17ba8d86c66cec9331632f3d9922bb2c6eabf5

              SHA512

              e30f0a67bbdc6507ac5babaa5fe1e0db7cde6b62812f6365fe83293e5fbba3f62db43c80c635a43b3b0ffb2e08ac2faf79eff0d3bea8e2aaaca6c55fb0833c0b