Overview

overview

10

Static

static

349d7550b2...3f.exe

windows7_x64

10

349d7550b2...3f.exe

windows10_x64

10

Analysis

  • max time kernel
    17s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    02/02/2021, 15:59

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    349d7550b23a5c3051faa6981cbead3f.exe
  • Size 541KB
  • Sample210202-yfa667aare
  • SHA256 ca689501b79de8430f0900c86e9a6b5c93b2d7cc68bc0b8921bb6ebb005f6893
  • MD5 SHA1 SHA512
Score
10/10
vidardiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spyware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Checks installed software on the system 1 TTPs

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

    discovery
  • JavaScript code in executable 1 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.

  • Enumerates physical storage devices 1 TTPs

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

    ransomware
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\349d7550b23a5c3051faa6981cbead3f.exe
    "C:\Users\Admin\AppData\Local\Temp\349d7550b23a5c3051faa6981cbead3f.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4688
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im 349d7550b23a5c3051faa6981cbead3f.exe /f & erase C:\Users\Admin\AppData\Local\Temp\349d7550b23a5c3051faa6981cbead3f.exe & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3848
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im 349d7550b23a5c3051faa6981cbead3f.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3096

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads