Analysis

  • max time kernel
    126s
  • max time network
    131s
  • 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, 23:56

General

  • Target

    2e66ff2866f789dc6a3a8aadf7ce8c44bce8ef5b1703385554df3d720012c448.exe

  • Size

    1.6MB

  • MD5

    6caa2fafb3daa1da81c7f1fcac3956a8

  • SHA1

    be0a4610e12455c4807604bbd41646bbc5d7cb7d

  • SHA256

    2e66ff2866f789dc6a3a8aadf7ce8c44bce8ef5b1703385554df3d720012c448

  • SHA512

    9876339d21ee82b8c34dc6fbb0cd5415f00384143d2bab79c8cbf8f8f1d962a1687e664d7f52f9262a1fc5b889747916dc4d49fa7e83354f8ad77fc52a48e3cf

  • 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\2e66ff2866f789dc6a3a8aadf7ce8c44bce8ef5b1703385554df3d720012c448.exe
    "C:\Users\Admin\AppData\Local\Temp\2e66ff2866f789dc6a3a8aadf7ce8c44bce8ef5b1703385554df3d720012c448.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:800
    • 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:3156
    • 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:4744
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 800 -s 1576
      2⤵
      • Program crash
      PID:4812
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4716
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
      1⤵
        PID:608

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

              Filesize

              1.6MB

              MD5

              6caa2fafb3daa1da81c7f1fcac3956a8

              SHA1

              be0a4610e12455c4807604bbd41646bbc5d7cb7d

              SHA256

              2e66ff2866f789dc6a3a8aadf7ce8c44bce8ef5b1703385554df3d720012c448

              SHA512

              9876339d21ee82b8c34dc6fbb0cd5415f00384143d2bab79c8cbf8f8f1d962a1687e664d7f52f9262a1fc5b889747916dc4d49fa7e83354f8ad77fc52a48e3cf

            • C:\Users\Admin\AppData\Local\Temp\grandUIAQ5XzYd2xpZqie\information.txt

              Filesize

              3KB

              MD5

              06d0b797fb9f9bcb6f9d5ed4d857186d

              SHA1

              fdd07b1c186caf1b1479e21927dc29f17eb5a5c3

              SHA256

              36502583021af5085846d714cc76b2036fa01a7560a57f2491d562f439e6e8af

              SHA512

              4746e5952dd959c756706c66d7c70e3c4cf6deb1666fc7ed6f3232adfa5ee31e71d992146b0a344f7bdf837188705aaa6f5a5916b3dd4c729c9afdc86e54424b

            • C:\Users\Admin\AppData\Local\Temp\posterBoxQ5XzYd2xpZqie\QdX9ITDLyCRBWeb Data

              Filesize

              92KB

              MD5

              674e2655c91200908ca7eea977ffc25b

              SHA1

              0ff0e11d5933cf382d7381edbc6f216d97a2e181

              SHA256

              6d9706346ebea4d1cdb447635404e8a662bc2f40bc6d829b45d50aeedeeaffaa

              SHA512

              304ad62ea8746a6dd086687bbd9d22031c2a731d0d7809ebffaaa6649ee16a9bc89e2dc17eb360dc81309fde5a797bd9398928708d63c08cc7d4e51c2f959642