General

  • Target

    15CC8191E7728032CDABE71FAC938139.exe

  • Size

    3.9MB

  • Sample

    210527-gzxbvk3fwx

  • MD5

    15cc8191e7728032cdabe71fac938139

  • SHA1

    1b23c3637e4ddb26115bd9152525d15b4af73a36

  • SHA256

    46e99e70a21a9ecd28e61195f175bea9260eea38b1718f6750166688d955e91e

  • SHA512

    c5a77d8d0a94785f2715d023584bc024305326baac85539e3cb53b0ad319da35401a9affd745d4248789970f737fafd3bdf7e059624fe3b61347fb0314cc00f8

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

Targets

    • Target

      15CC8191E7728032CDABE71FAC938139.exe

    • Size

      3.9MB

    • MD5

      15cc8191e7728032cdabe71fac938139

    • SHA1

      1b23c3637e4ddb26115bd9152525d15b4af73a36

    • SHA256

      46e99e70a21a9ecd28e61195f175bea9260eea38b1718f6750166688d955e91e

    • SHA512

      c5a77d8d0a94785f2715d023584bc024305326baac85539e3cb53b0ad319da35401a9affd745d4248789970f737fafd3bdf7e059624fe3b61347fb0314cc00f8

    • ElysiumStealer

      ElysiumStealer (previously known as ZeromaxStealer) is an info stealer that can steal login credentials for various accounts.

    • 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.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • xmrig

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

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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.

    • 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.

    • 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.

    • 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.

    • Maps connected drives based on registry

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks