Analysis

  • max time kernel
    142s
  • max time network
    144s
  • 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, 01:20

General

  • Target

    29fc4ec2272e265faf58a71365d463e953c20dcfa192b6208a1fd6ddd25a7f11.exe

  • Size

    911KB

  • MD5

    cb9c9a8f464afaf501e9612103d8fec0

  • SHA1

    60c819437a659cd38061f64d223ce9c8ddee7b73

  • SHA256

    29fc4ec2272e265faf58a71365d463e953c20dcfa192b6208a1fd6ddd25a7f11

  • SHA512

    286dc10dc0d4ff74583df25f675468f4c6475f7b6ce1b59e1c700f19a698c57902edec75dc1fd464adfae739a22420fdeb6f981ec1583dd71b6393e9252ebfb4

  • SSDEEP

    24576:3ACoC/qaSuzK9vjattZton323zLqksvO2/blP6RSmICTO:IiUueotZtu3kUvOmbV6RrICTO

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7025541570:AAHHRvlJK1bIRktP0rY6GjgOuBxMeTOu_OU/sendMessage?chat_id=5138702702

Signatures

  • VIPKeylogger

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

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

    Malicious Access or copy of Web Browser Credential store.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\29fc4ec2272e265faf58a71365d463e953c20dcfa192b6208a1fd6ddd25a7f11.exe
    "C:\Users\Admin\AppData\Local\Temp\29fc4ec2272e265faf58a71365d463e953c20dcfa192b6208a1fd6ddd25a7f11.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2928
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\29fc4ec2272e265faf58a71365d463e953c20dcfa192b6208a1fd6ddd25a7f11.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:216
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BZSSOtWV.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2268
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BZSSOtWV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC813.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4760
    • C:\Users\Admin\AppData\Local\Temp\29fc4ec2272e265faf58a71365d463e953c20dcfa192b6208a1fd6ddd25a7f11.exe
      "C:\Users\Admin\AppData\Local\Temp\29fc4ec2272e265faf58a71365d463e953c20dcfa192b6208a1fd6ddd25a7f11.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:4304

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          3d086a433708053f9bf9523e1d87a4e8

          SHA1

          b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

          SHA256

          6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

          SHA512

          931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

          Filesize

          18KB

          MD5

          5d6f2f10652ca656d8e43f9dbd85781c

          SHA1

          aacaa66c23bcaf2e30da08c47e6de53852203ae1

          SHA256

          be9c7eb2bfafe3c791e1412c3d77344746814c0ed95bf68a046f4c871017f6eb

          SHA512

          aa1da5d17d05c8ebaff83aa7a88be91f3bd766ed16b4cfe183d2b1655794fc525dd8bf1e9ed1530da1eb311cb10019b8f189704a34ce684e3e9bec188e8ee4d0

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yrginbsu.cv5.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmpC813.tmp

          Filesize

          1KB

          MD5

          8734390fb86262b22d2a2644185bd23a

          SHA1

          e308f1f588442dbd58b6defdc2f69a2845a34201

          SHA256

          854fabe8941e906bddf31df55f814de87966cb2dbed10d04df07911b2f6a6ecc

          SHA512

          3cf9ebd7c237cba6fa54929960bf71b6d2c01a0d42402d9a747afb4963cf3a63f4a7bae7e47fefde085ecf12a43a7c6dedabd53f61885cc132fcad06f9ae0212

        • memory/216-75-0x0000000008170000-0x00000000087EA000-memory.dmp

          Filesize

          6.5MB

        • memory/216-78-0x0000000007DB0000-0x0000000007E46000-memory.dmp

          Filesize

          600KB

        • memory/216-90-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/216-50-0x0000000006800000-0x000000000681E000-memory.dmp

          Filesize

          120KB

        • memory/216-79-0x0000000007D30000-0x0000000007D41000-memory.dmp

          Filesize

          68KB

        • memory/216-36-0x0000000006330000-0x0000000006684000-memory.dmp

          Filesize

          3.3MB

        • memory/216-77-0x0000000007BA0000-0x0000000007BAA000-memory.dmp

          Filesize

          40KB

        • memory/216-76-0x0000000007B30000-0x0000000007B4A000-memory.dmp

          Filesize

          104KB

        • memory/216-16-0x00000000052D0000-0x0000000005306000-memory.dmp

          Filesize

          216KB

        • memory/216-17-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/216-18-0x0000000005940000-0x0000000005F68000-memory.dmp

          Filesize

          6.2MB

        • memory/216-19-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/216-64-0x0000000007830000-0x00000000078D3000-memory.dmp

          Filesize

          652KB

        • memory/216-52-0x00000000077F0000-0x0000000007822000-memory.dmp

          Filesize

          200KB

        • memory/216-22-0x0000000005840000-0x0000000005862000-memory.dmp

          Filesize

          136KB

        • memory/216-63-0x0000000006D80000-0x0000000006D9E000-memory.dmp

          Filesize

          120KB

        • memory/216-24-0x0000000005F70000-0x0000000005FD6000-memory.dmp

          Filesize

          408KB

        • memory/216-53-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

          Filesize

          304KB

        • memory/216-35-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/216-51-0x0000000006DF0000-0x0000000006E3C000-memory.dmp

          Filesize

          304KB

        • memory/216-83-0x0000000007E50000-0x0000000007E58000-memory.dmp

          Filesize

          32KB

        • memory/216-25-0x0000000006190000-0x00000000061F6000-memory.dmp

          Filesize

          408KB

        • memory/2268-65-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

          Filesize

          304KB

        • memory/2268-86-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/2268-46-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/2268-82-0x0000000007090000-0x00000000070AA000-memory.dmp

          Filesize

          104KB

        • memory/2268-23-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/2268-80-0x0000000006F80000-0x0000000006F8E000-memory.dmp

          Filesize

          56KB

        • memory/2268-81-0x0000000006F90000-0x0000000006FA4000-memory.dmp

          Filesize

          80KB

        • memory/2268-20-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/2928-1-0x0000000000120000-0x000000000020A000-memory.dmp

          Filesize

          936KB

        • memory/2928-49-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/2928-0-0x000000007444E000-0x000000007444F000-memory.dmp

          Filesize

          4KB

        • memory/2928-5-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/2928-8-0x0000000074440000-0x0000000074BF0000-memory.dmp

          Filesize

          7.7MB

        • memory/2928-10-0x0000000005DE0000-0x0000000005E6C000-memory.dmp

          Filesize

          560KB

        • memory/2928-4-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

          Filesize

          40KB

        • memory/2928-11-0x0000000006070000-0x000000000610C000-memory.dmp

          Filesize

          624KB

        • memory/2928-7-0x000000007444E000-0x000000007444F000-memory.dmp

          Filesize

          4KB

        • memory/2928-3-0x0000000004BF0000-0x0000000004C82000-memory.dmp

          Filesize

          584KB

        • memory/2928-2-0x0000000005300000-0x00000000058A4000-memory.dmp

          Filesize

          5.6MB

        • memory/2928-6-0x0000000004D30000-0x0000000004D42000-memory.dmp

          Filesize

          72KB

        • memory/2928-9-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

          Filesize

          64KB

        • memory/4304-47-0x0000000000400000-0x000000000044A000-memory.dmp

          Filesize

          296KB

        • memory/4304-91-0x0000000006E20000-0x0000000006FE2000-memory.dmp

          Filesize

          1.8MB

        • memory/4304-92-0x0000000006CC0000-0x0000000006D10000-memory.dmp

          Filesize

          320KB