Analysis

  • max time kernel
    298s
  • max time network
    279s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-11-2024 15:24

General

  • Target

    script_decoded.ps1

  • Size

    31KB

  • MD5

    0e7098ab1308e2b8376bbeff1bb0c0a9

  • SHA1

    1af3f6f5d2e1d857983abb33a38e2e68ec010f09

  • SHA256

    a967281b40b827e8e2e4f51656dc63f9812006dd034d2565ff9366c3f04eaf20

  • SHA512

    5f2531b2d9464c20689d994a3b8bc1f0aab5b7732bcfd42b5f18e262ddbca14fa6a416c987eb27ed97a1db0c9c572c8dc32816895761f8325d304c4f1e040fe1

  • SSDEEP

    768:w0SUlvkUjIiKjOEEPx7GP7J7X9tS7jUXJSs11OaUxLJ:w7UlcnRCEEPxcRw7ejNCV

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.tlakovec.si
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @nartsantelps

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Blocklisted process makes network request 12 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script_decoded.ps1
    1⤵
    • Blocklisted process makes network request
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5040
  • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" "powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script_decoded.ps1"
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script_decoded.ps1
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4884
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe"
        3⤵
        • Blocklisted process makes network request
        • Accesses Microsoft Outlook profiles
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3100
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1564

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      1KB

      MD5

      fca0f9b99d3114c40a56fc2b22a8e07e

      SHA1

      9d5a1d6efcd4a55f2bbc72bdd7cc0645168552f7

      SHA256

      d8bbc5d969763b918993ecd7cfc29295e558a8b0f2f53799b2f8273e564b63eb

      SHA512

      8b52cdf9cd124675f685701e37f0a90e85f37e6bbde5b48cfb8edfba56d57cc46622fee2ef64368292cf1eff4177cfd3f59b38ba4d5b469bf2e2d17a30e0f37d

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sjnvkp4w.a31.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\Spoledes.Bes

      Filesize

      446KB

      MD5

      7c0ef84d908c7fa97de1ec867e85c2af

      SHA1

      68b5a2fc9bb5ca868d8d821178f5b0bd396cdab1

      SHA256

      369bc5334386de2d8d5891210c2942ae00b273e5abadd43899ed33e231e74445

      SHA512

      b0fdd8ef36d8d8254400a3b5b84a9d04bce5ffb57defb6bf99201dccf9a519bf59e1fb167c71246a4b2c22123596af2d680fbf84434429e1c661ed339e4608dc

    • memory/2640-60-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

      Filesize

      4KB

    • memory/2640-61-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/2640-67-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/2640-21-0x0000000002D30000-0x0000000002D66000-memory.dmp

      Filesize

      216KB

    • memory/2640-40-0x00000000066D0000-0x000000000671C000-memory.dmp

      Filesize

      304KB

    • memory/2640-20-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

      Filesize

      4KB

    • memory/2640-39-0x0000000006640000-0x000000000665E000-memory.dmp

      Filesize

      120KB

    • memory/2640-22-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/2640-23-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/2640-24-0x0000000005820000-0x0000000005E48000-memory.dmp

      Filesize

      6.2MB

    • memory/2640-26-0x0000000005F50000-0x0000000005FB6000-memory.dmp

      Filesize

      408KB

    • memory/2640-27-0x0000000005FC0000-0x0000000006026000-memory.dmp

      Filesize

      408KB

    • memory/2640-25-0x0000000005EB0000-0x0000000005ED2000-memory.dmp

      Filesize

      136KB

    • memory/2640-28-0x0000000006030000-0x0000000006384000-memory.dmp

      Filesize

      3.3MB

    • memory/3100-80-0x0000000000800000-0x0000000001A54000-memory.dmp

      Filesize

      18.3MB

    • memory/3100-81-0x0000000000800000-0x000000000084A000-memory.dmp

      Filesize

      296KB

    • memory/3100-91-0x0000000022E50000-0x0000000022E5A000-memory.dmp

      Filesize

      40KB

    • memory/3100-90-0x0000000025F40000-0x0000000025FD2000-memory.dmp

      Filesize

      584KB

    • memory/3100-87-0x0000000026770000-0x0000000026C9C000-memory.dmp

      Filesize

      5.2MB

    • memory/3100-82-0x0000000025340000-0x00000000253DC000-memory.dmp

      Filesize

      624KB

    • memory/3100-86-0x00000000257B0000-0x0000000025800000-memory.dmp

      Filesize

      320KB

    • memory/3100-85-0x0000000026070000-0x0000000026232000-memory.dmp

      Filesize

      1.8MB

    • memory/4884-54-0x0000000006440000-0x000000000645A000-memory.dmp

      Filesize

      104KB

    • memory/4884-55-0x0000000007120000-0x00000000071B6000-memory.dmp

      Filesize

      600KB

    • memory/4884-57-0x0000000008110000-0x00000000086B4000-memory.dmp

      Filesize

      5.6MB

    • memory/4884-42-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4884-59-0x00000000086C0000-0x000000000E1E4000-memory.dmp

      Filesize

      91.1MB

    • memory/4884-43-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4884-53-0x00000000074E0000-0x0000000007B5A000-memory.dmp

      Filesize

      6.5MB

    • memory/4884-62-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4884-64-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4884-56-0x00000000070C0000-0x00000000070E2000-memory.dmp

      Filesize

      136KB

    • memory/4884-41-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/5040-13-0x00007FFEF6560000-0x00007FFEF7021000-memory.dmp

      Filesize

      10.8MB

    • memory/5040-0-0x00007FFEF6563000-0x00007FFEF6565000-memory.dmp

      Filesize

      8KB

    • memory/5040-10-0x000001F0346C0000-0x000001F0346E2000-memory.dmp

      Filesize

      136KB

    • memory/5040-11-0x00007FFEF6560000-0x00007FFEF7021000-memory.dmp

      Filesize

      10.8MB

    • memory/5040-14-0x00007FFEF6560000-0x00007FFEF7021000-memory.dmp

      Filesize

      10.8MB

    • memory/5040-12-0x00007FFEF6560000-0x00007FFEF7021000-memory.dmp

      Filesize

      10.8MB

    • memory/5040-19-0x00007FFEF6560000-0x00007FFEF7021000-memory.dmp

      Filesize

      10.8MB