Analysis

  • max time kernel
    125s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13/12/2023, 23:17

General

  • Target

    201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe

  • Size

    1.6MB

  • MD5

    ab571aa16fe8f9a8dc8617f2a6a19043

  • SHA1

    6b2911614241750e25ea34f229423491d5d8a7c8

  • SHA256

    201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab

  • SHA512

    d72df7d102e0a83ce7f87460625d7009f40e5ad629aced6dbc0d178bd0410cdbfa5925dc00a7e309634c995362288772561994c623f92c951163a552098aba97

  • 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\201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe
    "C:\Users\Admin\AppData\Local\Temp\201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.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:2980
    • 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:764
    • 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:352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 1580
      2⤵
      • Program crash
      PID:5084
  • \??\c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
    1⤵
      PID:3672
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:2852

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

              Filesize

              1.6MB

              MD5

              ab571aa16fe8f9a8dc8617f2a6a19043

              SHA1

              6b2911614241750e25ea34f229423491d5d8a7c8

              SHA256

              201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab

              SHA512

              d72df7d102e0a83ce7f87460625d7009f40e5ad629aced6dbc0d178bd0410cdbfa5925dc00a7e309634c995362288772561994c623f92c951163a552098aba97

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

              Filesize

              3KB

              MD5

              3e480304ae9468a957eb2163f1b9ed6d

              SHA1

              d43a5c89bd9491e157a2f5c10078a5afec502325

              SHA256

              95bd2de089360a85d1c8f609401f2334fc236de5226312446ee7ea17e36ebcfb

              SHA512

              d5ea537b7adbffcfb80c3e4909e1656a99ef7d96d9c6c06e3bda08540e7e517ec71ff9372966bdef28bafa89851f42589ee3f5c87c3f1a3fe9c3aac09c1d3933

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

              Filesize

              92KB

              MD5

              908cc2dad5eb4412aaa2a85beb5f6341

              SHA1

              a5f1b88092d219e71e8969d01ee2a3ae669a5600

              SHA256

              210fc747617b64d2430897b4c11cd5dc81bc3a991d7c622b90918ce4d112baa4

              SHA512

              38729498bd42d999c38dc769cc79057917a933080d608574460fe7ba7c9409db4e01979044151bc0922b1a9816398e25b7be59976bd318b1202b5d13fcf03cd9