General

  • Target

    ef0cbf775e540a36352c5d47bbf08d30b15b1600a7a5f2983907de18c44d94ce

  • Size

    232KB

  • Sample

    211202-csveaaabgp

  • MD5

    edfdc8d0f673d491c2fa5e758a423324

  • SHA1

    7c16a45e5e3d29c8700ed57daa0467ab1c16247f

  • SHA256

    ef0cbf775e540a36352c5d47bbf08d30b15b1600a7a5f2983907de18c44d94ce

  • SHA512

    639773052b400a496a79fd082d1b2be0839ff19ae5e3dadcd89325b5cb5b67091ab14a1528ee7d7fdced79f63266d4b88400107e7872e8ebfc177905d36b332b

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://rcacademy.at/upload/

http://e-lanpengeonline.com/upload/

http://vjcmvz.cn/upload/

http://galala.ru/upload/

http://witra.ru/upload/

https://cinems.club/search.php

https://clothes.surf/search.php

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

Extracted

Family

redline

Botnet

1

C2

45.9.20.59:46287

Targets

    • Target

      ef0cbf775e540a36352c5d47bbf08d30b15b1600a7a5f2983907de18c44d94ce

    • Size

      232KB

    • MD5

      edfdc8d0f673d491c2fa5e758a423324

    • SHA1

      7c16a45e5e3d29c8700ed57daa0467ab1c16247f

    • SHA256

      ef0cbf775e540a36352c5d47bbf08d30b15b1600a7a5f2983907de18c44d94ce

    • SHA512

      639773052b400a496a79fd082d1b2be0839ff19ae5e3dadcd89325b5cb5b67091ab14a1528ee7d7fdced79f63266d4b88400107e7872e8ebfc177905d36b332b

    • 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.

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

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

    • suricata: ET MALWARE Windows dir Microsoft Windows DOS prompt command exit OUTBOUND

      suricata: ET MALWARE Windows dir Microsoft Windows DOS prompt command exit OUTBOUND

    • suricata: ET MALWARE Windows route Microsoft Windows DOS prompt command exit OUTBOUND

      suricata: ET MALWARE Windows route Microsoft Windows DOS prompt command exit OUTBOUND

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Deletes itself

    • Drops startup file

    • 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.

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks