General

  • Target

    003a673f0f61eced958f28f97b647d5e574a698285e602f197486d0e272a0ec0

  • Size

    305KB

  • Sample

    220116-vdy32affg6

  • MD5

    b38741d11200bb9c6355c9aa38c14021

  • SHA1

    9ee9aa21473361e65ffbf98c52aa32ebb1502832

  • SHA256

    003a673f0f61eced958f28f97b647d5e574a698285e602f197486d0e272a0ec0

  • SHA512

    b0f11ddf2413f421616e70a3fd63ca3831d87383ceb395d31b30c463b4234d8983f71a99ea2e356ae54e16556e50e9447cb7a799bdf66c196ca17aa12dc85adf

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

      003a673f0f61eced958f28f97b647d5e574a698285e602f197486d0e272a0ec0

    • Size

      305KB

    • MD5

      b38741d11200bb9c6355c9aa38c14021

    • SHA1

      9ee9aa21473361e65ffbf98c52aa32ebb1502832

    • SHA256

      003a673f0f61eced958f28f97b647d5e574a698285e602f197486d0e272a0ec0

    • SHA512

      b0f11ddf2413f421616e70a3fd63ca3831d87383ceb395d31b30c463b4234d8983f71a99ea2e356ae54e16556e50e9447cb7a799bdf66c196ca17aa12dc85adf

    • 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.

    • 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.

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks