Overview

overview

10

Static

static

DHL_FILE.EXE

windows7_x64

10

DHL_FILE.EXE

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    07/12/2020, 16:31

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General

  • Target
    DHL_FILE.EXE
  • Size 350KB
  • Sample201207-2npczerssx
  • SHA256 849c170a469dc6f5b1bc190923744b08c51ea0ea593e435f0121b874af58c3ec
  • MD5 SHA1 SHA512
Score
10/10
remcosratspyware

Malware Config

Extracted

Family

  • remcos

C2

  • u875414.nvpn.to:2404

  • u875414.duckdns.org:2404

  • u875414.ddns.net:2404

  • u875414.nsupdate.info:2404

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

    ratremcos
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Suspicious use of SetThreadContext 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE
    "C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c schtasks /Create /TN firefox6 /XML "C:\Users\Admin\AppData\Local\Temp\908fe41669974b699ecdee93824b9fe1.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3948
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN firefox6 /XML "C:\Users\Admin\AppData\Local\Temp\908fe41669974b699ecdee93824b9fe1.xml"
        3⤵
        • Creates scheduled task(s)
        PID:212
    • C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE
      "C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4088
      • C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE
        C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE /stext "C:\Users\Admin\AppData\Local\Temp\skqjtsxsubxbteynjzsbtrbtlnghkzv"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4064
      • C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE
        C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE /stext "C:\Users\Admin\AppData\Local\Temp\fhamvvt"
        3⤵
          PID:1352
        • C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE
          C:\Users\Admin\AppData\Local\Temp\DHL_FILE.EXE /stext "C:\Users\Admin\AppData\Local\Temp\vnvtuditijpgekmrskndeewkttqilkmdgt"
          3⤵
            PID:3512

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/4064-9-0x0000000000400000-0x0000000000478000-memory.dmp
            Download

            memory/4064-11-0x0000000000400000-0x0000000000478000-memory.dmp
            Download

            memory/4064-12-0x0000000000400000-0x0000000000478000-memory.dmp
            Download

            memory/4088-3-0x0000000000400000-0x0000000000421000-memory.dmp
            Download

            memory/4088-6-0x0000000000400000-0x0000000000421000-memory.dmp
            Download