General

  • Target

    ab54c7300e784173d43437efb30d05b1.exe

  • Size

    314KB

  • Sample

    220116-jlz5hsfcf2

  • MD5

    ab54c7300e784173d43437efb30d05b1

  • SHA1

    7d0fe7468bd2e572b720abed5468f33c809ab01c

  • SHA256

    8fa2e2dc944134530288f4efd6b7b7288591993c08fd69dec0902b689435c028

  • SHA512

    b33998ae499ed54fbedb2e5aa20a161441dad4c037c6f9c86b1d252a1c4130b316e7d195159ff30e9db92059e3b3ff7e31e716c55459d3007aac662f2d4c0f4a

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

      ab54c7300e784173d43437efb30d05b1.exe

    • Size

      314KB

    • MD5

      ab54c7300e784173d43437efb30d05b1

    • SHA1

      7d0fe7468bd2e572b720abed5468f33c809ab01c

    • SHA256

      8fa2e2dc944134530288f4efd6b7b7288591993c08fd69dec0902b689435c028

    • SHA512

      b33998ae499ed54fbedb2e5aa20a161441dad4c037c6f9c86b1d252a1c4130b316e7d195159ff30e9db92059e3b3ff7e31e716c55459d3007aac662f2d4c0f4a

    • Arkei

      Arkei is an infostealer written in C++.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Tofsee

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

    • Windows security bypass

    • 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

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks