General

  • Target

    bff7c99026faec092dfeda45f6714ac159833826cfd2b48a6f864e984da5e3d1

  • Size

    312KB

  • Sample

    220115-sblntaehfr

  • MD5

    84b236989ca6e7aced5ceb23c67de68c

  • SHA1

    cb854f60c7c368426ac0eaddd81bbb104fdeca29

  • SHA256

    bff7c99026faec092dfeda45f6714ac159833826cfd2b48a6f864e984da5e3d1

  • SHA512

    816196d7ff9392b85172f9720821aa7edc3a7a426a313dc6edc761dcb2dcd011ac4a9bf34d317a819f1b1349f9ee8325128800983da7d637d4aebbe02c2cae8d

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

http://srtuiyhuali.at/

http://fufuiloirtu.com/

http://amogohuigotuli.at/

http://novohudosovu.com/

http://brutuilionust.com/

http://bubushkalioua.com/

http://dumuilistrati.at/

http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

arkei

Botnet

Default

C2

http://file-file-host4.com/tratata.php

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Targets

    • Target

      bff7c99026faec092dfeda45f6714ac159833826cfd2b48a6f864e984da5e3d1

    • Size

      312KB

    • MD5

      84b236989ca6e7aced5ceb23c67de68c

    • SHA1

      cb854f60c7c368426ac0eaddd81bbb104fdeca29

    • SHA256

      bff7c99026faec092dfeda45f6714ac159833826cfd2b48a6f864e984da5e3d1

    • SHA512

      816196d7ff9392b85172f9720821aa7edc3a7a426a313dc6edc761dcb2dcd011ac4a9bf34d317a819f1b1349f9ee8325128800983da7d637d4aebbe02c2cae8d

    • Arkei

      Arkei is an infostealer written in C++.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Arkei Stealer Payload

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks