General

  • Target

    file.exe

  • Size

    3.2MB

  • Sample

    221017-k3a3dsbdgj

  • MD5

    bc39def3c5716eb76d994fe4b7e597fb

  • SHA1

    bdc1941fca9620d4eabbb1aa6fb1dc8862a130bd

  • SHA256

    6ed5e19aac6c1cf5f1d2cd08f1db7fec2f1455fc79a9ddaa7cc45a8ce43a9fbe

  • SHA512

    83d40fc0ad933004f1990b22bc300b942dabfd2c7370e9e4e57192bf154404ea6fac4abca93807f0e60af5dd1bd7dd57da8ed45990ae3dccb5f52d23f8329e97

  • SSDEEP

    98304:THZ2fHyQEY0JIi4VaLGGteqp8OH7FCUGn:THIHKGi4VqGG9XFXm

Malware Config

Extracted

Family

vidar

Version

55

Botnet

1679

C2

http://138.201.90.120:80

Attributes
  • profile_id

    1679

Targets

    • Target

      file.exe

    • Size

      3.2MB

    • MD5

      bc39def3c5716eb76d994fe4b7e597fb

    • SHA1

      bdc1941fca9620d4eabbb1aa6fb1dc8862a130bd

    • SHA256

      6ed5e19aac6c1cf5f1d2cd08f1db7fec2f1455fc79a9ddaa7cc45a8ce43a9fbe

    • SHA512

      83d40fc0ad933004f1990b22bc300b942dabfd2c7370e9e4e57192bf154404ea6fac4abca93807f0e60af5dd1bd7dd57da8ed45990ae3dccb5f52d23f8329e97

    • SSDEEP

      98304:THZ2fHyQEY0JIi4VaLGGteqp8OH7FCUGn:THIHKGi4VqGG9XFXm

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

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

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

3
T1005

Tasks