General

  • Target
    4e2ddac2be7eda1d5b1cc5def04a6b1bde4348710ccc81822800bb2256981b1d
  • Size 3.5MB
  • Sample220310-x7a96sdfdn
  • SHA256 4e2ddac2be7eda1d5b1cc5def04a6b1bde4348710ccc81822800bb2256981b1d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • socelars

C2
  • http://www.iyiqian.com/

  • http://www.xxhufdc.top/

  • http://www.uefhkice.xyz/

  • http://www.wygexde.xyz/

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://ppcspb.com/upload/

  • http://mebbing.com/upload/

  • http://twcamel.com/upload/

  • http://howdycash.com/upload/

  • http://lahuertasonora.com/upload/

  • http://kpotiques.com/upload/

rc4.i32
rc4.i32

Targets

    • Target
      4e2ddac2be7eda1d5b1cc5def04a6b1bde4348710ccc81822800bb2256981b1d
    • Size 3.5MB
    • SHA256 4e2ddac2be7eda1d5b1cc5def04a6b1bde4348710ccc81822800bb2256981b1d
    • MD5 SHA1 SHA512
    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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.

    • 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.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks