Analysis

  • max time kernel
    126s
  • max time network
    129s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13/12/2023, 23:24

General

  • Target

    806e2088a0591c627ea1a4fe52425b3c94a10415a050de71cfcf7027c8230216.exe

  • Size

    1.6MB

  • MD5

    e739f06444475d92ccf6461811bc1c88

  • SHA1

    b651f39df70aa358ef8664f171f17ed8509fa69d

  • SHA256

    806e2088a0591c627ea1a4fe52425b3c94a10415a050de71cfcf7027c8230216

  • SHA512

    8873af608a65b7c430d8357c4e5235581f912d4e97c0702e145f5104fae7f6a0edf39b4c1dbcce4c556c653a3a33fa696dbb5ed5488eb5f42aa6f8eda58237e4

  • 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\806e2088a0591c627ea1a4fe52425b3c94a10415a050de71cfcf7027c8230216.exe
    "C:\Users\Admin\AppData\Local\Temp\806e2088a0591c627ea1a4fe52425b3c94a10415a050de71cfcf7027c8230216.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:1296
    • 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:4904
    • 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:4332
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 1668
      2⤵
      • Program crash
      PID:2224
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:2396
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
      1⤵
        PID:4752

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

              Filesize

              1.6MB

              MD5

              e739f06444475d92ccf6461811bc1c88

              SHA1

              b651f39df70aa358ef8664f171f17ed8509fa69d

              SHA256

              806e2088a0591c627ea1a4fe52425b3c94a10415a050de71cfcf7027c8230216

              SHA512

              8873af608a65b7c430d8357c4e5235581f912d4e97c0702e145f5104fae7f6a0edf39b4c1dbcce4c556c653a3a33fa696dbb5ed5488eb5f42aa6f8eda58237e4

            • C:\Users\Admin\AppData\Local\Temp\grandUIAQvmChZ98zHvbZ\information.txt

              Filesize

              3KB

              MD5

              2d74a63e97de8dbb2f948c942e180635

              SHA1

              7a2ecd37452e144547d99a8804edb06783653da1

              SHA256

              87a230d84bb62133899d236f631922bec2e235d076fb4d2839e3369fbaaa13f2

              SHA512

              a0d1ccd1e4a89f3f07aafe4ddf75d4b087609216038d9436d420cbf1a9545f38fd982d0a6a0eb4ccee936c757615efb7c83bf1d8ac49ab433e85e3f125326d00

            • C:\Users\Admin\AppData\Local\Temp\posterBoxQvmChZ98zHvbZ\QdX9ITDLyCRBWeb Data

              Filesize

              92KB

              MD5

              d540e45d4e0edb6aab5ed14cc52f1fa5

              SHA1

              0c9279b204416dfa86ee22993bd3325b5bc762b1

              SHA256

              ddd7cbb13ec9dca8859d1a0f54d3f326c0097a8d2809636d96d2e4d9cfa86153

              SHA512

              3dc3b50b4948f522f4746a0ef63cdc40995dad3a3ac901b277a37296a33eee2977121f7aa529d9ef7f0cb878c6e15fac6c5570f1e5f73e73b5379633bd0caf9f