General

  • Target

    c546f607999cde4e080af85119bdb235.exe

  • Size

    293KB

  • Sample

    220109-tt8rqsdhgn

  • MD5

    c546f607999cde4e080af85119bdb235

  • SHA1

    4aa3b811556fffe9f8ee3a8210d7ce9fc976c42c

  • SHA256

    492ee4f4523bbce520cee6d63b3175a720ba7f7f5d6a8adddfff58d0ac909fe9

  • SHA512

    e49023d16ecc652a7aea4ed085d27b202662bd581f4bb0d783b332e35ee6479e33429572ee9b26d5d7ded5f7b6ec05b0f084de7e2c706da3b5fe7802f1e726d1

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

tofsee

C2

patmushta.info

parubey.info

Extracted

Family

raccoon

Version

1.8.4-hotfixs

rc4.plain

Targets

    • Target

      c546f607999cde4e080af85119bdb235.exe

    • Size

      293KB

    • MD5

      c546f607999cde4e080af85119bdb235

    • SHA1

      4aa3b811556fffe9f8ee3a8210d7ce9fc976c42c

    • SHA256

      492ee4f4523bbce520cee6d63b3175a720ba7f7f5d6a8adddfff58d0ac909fe9

    • SHA512

      e49023d16ecc652a7aea4ed085d27b202662bd581f4bb0d783b332e35ee6479e33429572ee9b26d5d7ded5f7b6ec05b0f084de7e2c706da3b5fe7802f1e726d1

    • Arkei

      Arkei is an infostealer written in C++.

    • LoaderBot

      LoaderBot is a loader written in .NET downloading and executing miners.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • 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.

    • Windows security bypass

    • 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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • LoaderBot executable

    • XMRig Miner Payload

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Drops startup file

    • 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

    • 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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks