Resubmissions

17-10-2022 14:19

221017-rm5emacaf4 10

17-10-2022 14:09

221017-rf8tgacbgp 10

15-10-2022 16:38

221015-t5dezafggp 10

General

  • Target

    e41ad88438135bf0b2189701de819be1.exe

  • Size

    213KB

  • Sample

    221017-rm5emacaf4

  • MD5

    e41ad88438135bf0b2189701de819be1

  • SHA1

    95de6449d3b39f8e5024456909c867db18f8a72b

  • SHA256

    cd3a2b42f2d770f1f870b2e3be9d0a5262b8038d65e6f95a1e63bed333150db5

  • SHA512

    3cee47029aa2fde04e16f964a5d0c661a623bf6a3a954f30d90ead3859ae4d02c997184d929ba66712b67731cdd17cd664f620ca16241ac04c58e16aea500515

  • SSDEEP

    3072:yXp4AqLOlFA/gtXw4Q5VgHnk9pIZ/cs95SSYPmEpZ0KPDUX56o:ycLOlFPwtgHk9pIpLSSsZ0bo

Malware Config

Extracted

Family

erbium

C2

http://77.73.133.53/cloud/index.php

Targets

    • Target

      e41ad88438135bf0b2189701de819be1.exe

    • Size

      213KB

    • MD5

      e41ad88438135bf0b2189701de819be1

    • SHA1

      95de6449d3b39f8e5024456909c867db18f8a72b

    • SHA256

      cd3a2b42f2d770f1f870b2e3be9d0a5262b8038d65e6f95a1e63bed333150db5

    • SHA512

      3cee47029aa2fde04e16f964a5d0c661a623bf6a3a954f30d90ead3859ae4d02c997184d929ba66712b67731cdd17cd664f620ca16241ac04c58e16aea500515

    • SSDEEP

      3072:yXp4AqLOlFA/gtXw4Q5VgHnk9pIZ/cs95SSYPmEpZ0KPDUX56o:ycLOlFPwtgHk9pIpLSSsZ0bo

    • Detects Smokeloader packer

    • Erbium

      Erbium is an infostealer written in C++ and first seen in July 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

MITRE ATT&CK Enterprise v6

Tasks