Analysis

  • max time kernel
    121s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 11:17

General

  • Target

    Todaslasfacturas.exe

  • Size

    751KB

  • MD5

    102c9ce1c659517c4ea924c2044305b7

  • SHA1

    942b0a7e2077eca38b9b6ff16d89722cbbbf7002

  • SHA256

    b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310

  • SHA512

    eca6ed6a871e9fbee67feb73534bff544f052d6b3e1058a68b4602f159f089193f0f576384e6cd49373d50200d71bb4aeadd151c0fb81a77a6246849af2f39f6

  • SSDEEP

    12288:L3TmP4kyFSnIZgc1D7COp2JwlmsxS4kZHtfi390V+KA7rC7LOmDZ:2gBOI9D7CO0JqTSRNfiQsG7LOmD

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

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

  • 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.

  • 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 3 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.exe
    "C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2172
    • 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\Todaslasfacturas.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1360
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AcEnrS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2784
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AcEnrS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC6B9.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2216
    • C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.exe
      "C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.exe"
      2⤵
        PID:2252
      • C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.exe
        "C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.exe"
        2⤵
          PID:2872
        • C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.exe
          "C:\Users\Admin\AppData\Local\Temp\Todaslasfacturas.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:2632

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpC6B9.tmp

        Filesize

        1KB

        MD5

        056ca7c07061374c9311a0e058b03d86

        SHA1

        f4680ddd30910754d080399b5d16f1114e96d0bf

        SHA256

        ee181af4628ccf2ead17d1abb41fc1885ac47863320fe428e5b3f07684d6d16c

        SHA512

        bba6d4fac9e06580a3adb7747fd4d888db1ef3714726366bf806c7116447dbd979de314e47547fe78492f0586c18e34d5c766758957a49197d5745fa2ffec8d9

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

        Filesize

        7KB

        MD5

        dda418155ea1a654fbe1a0cee35af3cb

        SHA1

        f90dac2815b9a82dba73c1d6d67ca6c7e3422d02

        SHA256

        6f80044405b5cf33b82ba0f61b71bdb82d09be6e2b998e9b7c1e69191a13b2d9

        SHA512

        33168819c07cad23d200d96a65c39f235c430bc6f5146e5308fe9b2ef1467732e309b0ff9d72946072ecd40d7227abd71ed2d4dd6dff4dab8b5665b753751138

      • memory/2172-4-0x000000007434E000-0x000000007434F000-memory.dmp

        Filesize

        4KB

      • memory/2172-32-0x0000000074340000-0x0000000074A2E000-memory.dmp

        Filesize

        6.9MB

      • memory/2172-0-0x000000007434E000-0x000000007434F000-memory.dmp

        Filesize

        4KB

      • memory/2172-5-0x0000000074340000-0x0000000074A2E000-memory.dmp

        Filesize

        6.9MB

      • memory/2172-6-0x0000000000530000-0x00000000005BC000-memory.dmp

        Filesize

        560KB

      • memory/2172-2-0x0000000074340000-0x0000000074A2E000-memory.dmp

        Filesize

        6.9MB

      • memory/2172-1-0x0000000000160000-0x0000000000222000-memory.dmp

        Filesize

        776KB

      • memory/2172-3-0x0000000000490000-0x00000000004AE000-memory.dmp

        Filesize

        120KB

      • memory/2632-21-0x0000000000400000-0x000000000044A000-memory.dmp

        Filesize

        296KB

      • memory/2632-31-0x0000000000400000-0x000000000044A000-memory.dmp

        Filesize

        296KB

      • memory/2632-28-0x0000000000400000-0x000000000044A000-memory.dmp

        Filesize

        296KB

      • memory/2632-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2632-23-0x0000000000400000-0x000000000044A000-memory.dmp

        Filesize

        296KB

      • memory/2632-19-0x0000000000400000-0x000000000044A000-memory.dmp

        Filesize

        296KB

      • memory/2632-25-0x0000000000400000-0x000000000044A000-memory.dmp

        Filesize

        296KB

      • memory/2632-29-0x0000000000400000-0x000000000044A000-memory.dmp

        Filesize

        296KB