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General

  • Target

    4a28a9fb79adb9da7201c8a4ce3e343107cbded79527f062ceda14b75547c2a5

  • Size

    534KB

  • Sample

    230921-qpre4sgc3t

  • MD5

    7d372993bef0a7cf08a16b31f89a1828

  • SHA1

    bb870ae3b4f70685e115646c5d32efc4b15dd90b

  • SHA256

    4a28a9fb79adb9da7201c8a4ce3e343107cbded79527f062ceda14b75547c2a5

  • SHA512

    8e4b4d45cc602270a42decaecb4f990864fdf1ad5bf164a2b1b1364149c4a28af36d4841eb362f00ab6f010390d8ec3c36ab276b27b101e6c4bfbd10b1bd5e8c

  • SSDEEP

    6144:PL+AUxvdjNgBoHFIZ0YesFZITJuUQnErKQf9fV:vQNg2FTJuUQnEG8V

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      4a28a9fb79adb9da7201c8a4ce3e343107cbded79527f062ceda14b75547c2a5

    • Size

      534KB

    • MD5

      7d372993bef0a7cf08a16b31f89a1828

    • SHA1

      bb870ae3b4f70685e115646c5d32efc4b15dd90b

    • SHA256

      4a28a9fb79adb9da7201c8a4ce3e343107cbded79527f062ceda14b75547c2a5

    • SHA512

      8e4b4d45cc602270a42decaecb4f990864fdf1ad5bf164a2b1b1364149c4a28af36d4841eb362f00ab6f010390d8ec3c36ab276b27b101e6c4bfbd10b1bd5e8c

    • SSDEEP

      6144:PL+AUxvdjNgBoHFIZ0YesFZITJuUQnErKQf9fV:vQNg2FTJuUQnEG8V

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • xmrig

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

    • XMRig Miner payload

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks