General

  • Target

    68D372E53BC171301B3C09648FB3C8E4.exe

  • Size

    6.1MB

  • Sample

    210708-rl4xn3w1nx

  • MD5

    68d372e53bc171301b3c09648fb3c8e4

  • SHA1

    a9f54706a27f4c85ebbf8e283bde6f5035cb49d1

  • SHA256

    2c1e4de15b0a08e77555d4b16f2bb56fae378081a9411138d323b6b52a7e891b

  • SHA512

    7e47f66c15214d118c84ada52d9fcc286a9f2b3217aeec9d6bd81014260d749cbb106d5641800dde3686e6aeea58992a7f2032d04bc156a17cd3cb35e662a562

Malware Config

Extracted

Family

vidar

Version

39.4

Botnet

915

C2

https://sergeevih43.tumblr.com

Attributes
  • profile_id

    915

Targets

    • Target

      68D372E53BC171301B3C09648FB3C8E4.exe

    • Size

      6.1MB

    • MD5

      68d372e53bc171301b3c09648fb3c8e4

    • SHA1

      a9f54706a27f4c85ebbf8e283bde6f5035cb49d1

    • SHA256

      2c1e4de15b0a08e77555d4b16f2bb56fae378081a9411138d323b6b52a7e891b

    • SHA512

      7e47f66c15214d118c84ada52d9fcc286a9f2b3217aeec9d6bd81014260d749cbb106d5641800dde3686e6aeea58992a7f2032d04bc156a17cd3cb35e662a562

    • ElysiumStealer

      ElysiumStealer (previously known as ZeromaxStealer) is an info stealer that can steal login credentials for various accounts.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks