General

  • Target

    28A5B3BC1801EA6443643F1AD8710A82.exe

  • Size

    3.1MB

  • Sample

    210531-l21h3rs9ka

  • MD5

    28a5b3bc1801ea6443643f1ad8710a82

  • SHA1

    8be30d706d5de45bfdba5ff38caba3e9e982fa1b

  • SHA256

    e55e95de03dff2a35cb8304d855c944a5309c56ff8d369af0a542e600faa6808

  • SHA512

    8c7ed424f54f0f05ab03c99a47db60c6a2c3a29f2e251f62f16c1dea3861571ac5ecc5b55612b9fa69230babe35d7ff779aae65e19d34a0558e459c4e5bed24d

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://20xbtc.com/upload/

http://yzsnw.com/upload/

http://kaledebiyat.com/upload/

http://expertizizmir.com/upload/

http://dedkndy.com/upload/

http://theuncu.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

8

C2

wimuawzice.xyz:80

Targets

    • Target

      28A5B3BC1801EA6443643F1AD8710A82.exe

    • Size

      3.1MB

    • MD5

      28a5b3bc1801ea6443643f1ad8710a82

    • SHA1

      8be30d706d5de45bfdba5ff38caba3e9e982fa1b

    • SHA256

      e55e95de03dff2a35cb8304d855c944a5309c56ff8d369af0a542e600faa6808

    • SHA512

      8c7ed424f54f0f05ab03c99a47db60c6a2c3a29f2e251f62f16c1dea3861571ac5ecc5b55612b9fa69230babe35d7ff779aae65e19d34a0558e459c4e5bed24d

    • PlugX

      PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

    • 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.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • autoit_exe

      AutoIT scripts compiled to PE executables.

MITRE ATT&CK Enterprise v6

Tasks