General

  • Target

    5184c87f70fd14293e599b26fc4361ec3e5708095678c8a84143a059be319cf5

  • Size

    12.6MB

  • Sample

    231113-j2zhxsbg96

  • MD5

    5ec85f88e0f5dbc92c19d9026ef8251c

  • SHA1

    2fa2c7b0c1043e7bce3d2a076726fcfe47e40c31

  • SHA256

    5184c87f70fd14293e599b26fc4361ec3e5708095678c8a84143a059be319cf5

  • SHA512

    37c7c82e247cf962134e3f918c110ae9deb98c29fb075d7026aa2d96295f0679ec49c4520e57699b4f1b3d88061ed17f8b23cd498d43abe9c1387ca941609345

  • SSDEEP

    196608:ePFkC5B+ooBgPb48oms+6Wc0/vONTsU8y9VYO1hHhQHoOpAHVrSQrHWYMV:ikNFmL6fxd8iVlhHuHoO6HQQrBY

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      5184c87f70fd14293e599b26fc4361ec3e5708095678c8a84143a059be319cf5

    • Size

      12.6MB

    • MD5

      5ec85f88e0f5dbc92c19d9026ef8251c

    • SHA1

      2fa2c7b0c1043e7bce3d2a076726fcfe47e40c31

    • SHA256

      5184c87f70fd14293e599b26fc4361ec3e5708095678c8a84143a059be319cf5

    • SHA512

      37c7c82e247cf962134e3f918c110ae9deb98c29fb075d7026aa2d96295f0679ec49c4520e57699b4f1b3d88061ed17f8b23cd498d43abe9c1387ca941609345

    • SSDEEP

      196608:ePFkC5B+ooBgPb48oms+6Wc0/vONTsU8y9VYO1hHhQHoOpAHVrSQrHWYMV:ikNFmL6fxd8iVlhHuHoO6HQQrBY

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • PrivateLoader

      PrivateLoader.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • UAC bypass

    • Windows security bypass

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Stops running service(s)

    • Drops startup file

    • Executes dropped EXE

    • 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.

    • UPX packed file

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

    • Windows security modification

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks