Analysis

  • max time kernel
    94s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    04-03-2022 15:30

General

  • Target

    f6cf6a83aff82ec967dde8839900098082c4abb964eec4dd569f8fcc7836c423.exe

  • Size

    583KB

  • MD5

    77e772dfa88f23bc7f605bbd90e19f66

  • SHA1

    a49d3e5c72d8975a8233720eecd7ffcdd3225681

  • SHA256

    f6cf6a83aff82ec967dde8839900098082c4abb964eec4dd569f8fcc7836c423

  • SHA512

    ac8f5dfd06675f452d63ca80845de7adff5df189870a02b82ac711d93b652bee204eef19d15fed81fda66e5b6f7d7406c53999fe16e6b90684be07e98b84b2e7

Malware Config

Extracted

Family

vidar

Version

25.1

Botnet

237

C2

http://cuyahogarave.com/

Attributes
  • profile_id

    237

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

  • Vidar Stealer 2 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • 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 2FA software files, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6cf6a83aff82ec967dde8839900098082c4abb964eec4dd569f8fcc7836c423.exe
    "C:\Users\Admin\AppData\Local\Temp\f6cf6a83aff82ec967dde8839900098082c4abb964eec4dd569f8fcc7836c423.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1020

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1020-130-0x0000000002F02000-0x0000000002F59000-memory.dmp
    Filesize

    348KB

  • memory/1020-131-0x0000000002F02000-0x0000000002F59000-memory.dmp
    Filesize

    348KB

  • memory/1020-132-0x00000000030C0000-0x0000000003149000-memory.dmp
    Filesize

    548KB

  • memory/1020-133-0x0000000000400000-0x0000000002E48000-memory.dmp
    Filesize

    42.3MB