General

  • Target

    file.exe

  • Size

    1.9MB

  • Sample

    231005-yhjexseh21

  • MD5

    4f2d4b2e1de4a5b2bf4570bc4fdb5d99

  • SHA1

    80f993d5483c75e654db701b846a18b19384d2c4

  • SHA256

    2a551466afe3b8ee2c53c1c55edee43ed789ce59c296b90a9db6682b16971758

  • SHA512

    c90256f474d5615b3f9fde7c87b8c97fe31ad8282f862e6ffc18c3b0dadc85747b4f37dd7a60ca14f6d24a14c271985e83688b7cfd955739ec733e5b9c22abd4

  • SSDEEP

    12288:ZrhFxXfu3LO7VzpavNcfu+wGHd3f+QcFKeEHokyu5ag9X6a9DhvhN6TsBeMrvZtw:nfu3LaVzpavNcbtd31UW6a9Dhvh2WvV

Malware Config

Extracted

Family

redline

Botnet

@Black_Santa21

C2

94.142.138.4:80

Targets

    • Target

      file.exe

    • Size

      1.9MB

    • MD5

      4f2d4b2e1de4a5b2bf4570bc4fdb5d99

    • SHA1

      80f993d5483c75e654db701b846a18b19384d2c4

    • SHA256

      2a551466afe3b8ee2c53c1c55edee43ed789ce59c296b90a9db6682b16971758

    • SHA512

      c90256f474d5615b3f9fde7c87b8c97fe31ad8282f862e6ffc18c3b0dadc85747b4f37dd7a60ca14f6d24a14c271985e83688b7cfd955739ec733e5b9c22abd4

    • SSDEEP

      12288:ZrhFxXfu3LO7VzpavNcfu+wGHd3f+QcFKeEHokyu5ag9X6a9DhvhN6TsBeMrvZtw:nfu3LaVzpavNcbtd31UW6a9Dhvh2WvV

    • RedLine

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

    • RedLine payload

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

    • Downloads MZ/PE file

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks