Analysis

  • max time kernel
    127s
  • max time network
    174s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    23/06/2021, 16:45

General

  • Target
    file.dll
  • Size 759KB
  • Sample210623-yy2cydtrbx
  • SHA256 992413e532d35fb359c5d7fda2f390f006febad2e41fb1648736b68d59227d92
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • hancitor

Botnet
  • 2306_vensip

C2
  • http://extilivelly.com/8/forum.php

  • http://cludimetifte.ru/8/forum.php

  • http://sakincesed.ru/8/forum.php

Extracted

Family
  • fickerstealer

C2
  • pospvisis.com:80

Signatures

  • Hancitor

    Hancitor is downloader used to deliver other malware families.

  • fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • Blocklisted process makes network request 4 IoCs
  • Downloads MZ/PE file
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\System32\svchost.exe
        3⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:924

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/924-65-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/924-68-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2004-61-0x00000000767B1000-0x00000000767B3000-memory.dmp

        memory/2004-62-0x00000000002B0000-0x0000000000367000-memory.dmp

        memory/2004-63-0x0000000000240000-0x0000000000248000-memory.dmp

        memory/2004-64-0x0000000000260000-0x000000000026A000-memory.dmp