Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04/11/2024, 04:40

General

  • Target

    4b68371dba131b97f5bce58054f59684.exe

  • Size

    834KB

  • MD5

    4b68371dba131b97f5bce58054f59684

  • SHA1

    0e4a34a65ff81594361188766039c1f2fa4c366a

  • SHA256

    66c525114240093bc408138d4c93c51e7c09a235e183fca73ee66ebd150e4fe1

  • SHA512

    898e2f9772146bd72934719e9b56ef40ecfb33e30a59ba1a911e2c14eb4feafab92ce68cfcd32f66ee05d7a34db58d3314e34045e038c3f0e1f6ca1b57066e20

  • SSDEEP

    12288:NaghZfmczzHzEn9k64vvAJyBJUwrh2YofbU2hHyMj1QEIl7:cg/fVHzEnvDCJTKvSMSEI

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.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b68371dba131b97f5bce58054f59684.exe
    "C:\Users\Admin\AppData\Local\Temp\4b68371dba131b97f5bce58054f59684.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2648
    • 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\4b68371dba131b97f5bce58054f59684.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2656
    • C:\Users\Admin\AppData\Local\Temp\4b68371dba131b97f5bce58054f59684.exe
      "C:\Users\Admin\AppData\Local\Temp\4b68371dba131b97f5bce58054f59684.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:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2568-14-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2568-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2568-24-0x0000000074910000-0x0000000074FFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2568-16-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2568-21-0x0000000074910000-0x0000000074FFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2568-7-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2568-10-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2568-9-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2568-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2568-19-0x0000000074910000-0x0000000074FFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2568-18-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2648-20-0x0000000074910000-0x0000000074FFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2648-0-0x000000007491E000-0x000000007491F000-memory.dmp

    Filesize

    4KB

  • memory/2648-3-0x00000000004B0000-0x00000000004CC000-memory.dmp

    Filesize

    112KB

  • memory/2648-1-0x00000000012E0000-0x00000000013B6000-memory.dmp

    Filesize

    856KB

  • memory/2648-6-0x00000000002C0000-0x000000000034A000-memory.dmp

    Filesize

    552KB

  • memory/2648-5-0x0000000074910000-0x0000000074FFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2648-4-0x000000007491E000-0x000000007491F000-memory.dmp

    Filesize

    4KB

  • memory/2648-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

    Filesize

    6.9MB