Analysis

  • max time kernel
    77s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-10-2024 09:52

General

  • Target

    88f413c96604670ea6b1184c236b390468e9d4b16d35ed02701409b4a6f0233aN.exe

  • Size

    2.3MB

  • MD5

    81ea5574893bea66072640f30c7c0060

  • SHA1

    55309a096c4956c808cc5d8e327c6f75fafe24c4

  • SHA256

    88f413c96604670ea6b1184c236b390468e9d4b16d35ed02701409b4a6f0233a

  • SHA512

    575bb135a237194cc62ec4f893e3c6c4b165160383be62cf5f6265c2c67928c102e1b75b82493fa4983b35909be3428a1908cb1cd47080c6c669c671fff498bb

  • SSDEEP

    3072:6R+9MwiQ1/d0kzv4NmVcc18DM74+c9JDpdN3f5Bl5xoaq0jcp8HraqVmQdwuA:6RKMreKkzwNemDM7Ab3ix8F7wu

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

  • Detect Vidar Stealer 2 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88f413c96604670ea6b1184c236b390468e9d4b16d35ed02701409b4a6f0233aN.exe
    "C:\Users\Admin\AppData\Local\Temp\88f413c96604670ea6b1184c236b390468e9d4b16d35ed02701409b4a6f0233aN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\88f413c96604670ea6b1184c236b390468e9d4b16d35ed02701409b4a6f0233aN.exe" & rd /s /q "C:\ProgramData\IIJEBAECGCBK" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4372
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 10
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3012-0-0x0000000000A10000-0x0000000000C67000-memory.dmp

    Filesize

    2.3MB

  • memory/3012-20-0x0000000000A10000-0x0000000000C67000-memory.dmp

    Filesize

    2.3MB