Analysis

  • max time kernel
    94s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2024, 17:13

General

  • Target
    6ca26fbe131ceb76d05709c5df672110dc50148c791d8079eeb7d988025aef46.exe
  • Size 5.1MB
  • Sample241107-vrfhvavrhx
  • SHA256 6ca26fbe131ceb76d05709c5df672110dc50148c791d8079eeb7d988025aef46
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • privateloader

C2
  • http://212.193.30.45/proxies.txt

  • http://85.202.169.116/server.txt

  • pastebin.com/raw/A7dSG1te

  • http://wfsdragon.ru/api/setStats.php

  • 85.202.169.116

Signatures

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • Privateloader family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ca26fbe131ceb76d05709c5df672110dc50148c791d8079eeb7d988025aef46.exe
    "C:\Users\Admin\AppData\Local\Temp\6ca26fbe131ceb76d05709c5df672110dc50148c791d8079eeb7d988025aef46.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:544
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 544 -s 644
      2⤵
      • Program crash
      PID:3344
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 544 -ip 544
    1⤵
      PID:5072

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/544-0-0x0000000000400000-0x00000000016D3000-memory.dmp

          memory/544-1-0x0000000077E84000-0x0000000077E86000-memory.dmp

          memory/544-2-0x0000000000400000-0x00000000016D3000-memory.dmp

          memory/544-4-0x0000000001940000-0x0000000001A40000-memory.dmp

          memory/544-6-0x0000000000400000-0x0000000000438000-memory.dmp

          memory/544-5-0x0000000003580000-0x00000000035B5000-memory.dmp

          memory/544-7-0x0000000000400000-0x00000000016D3000-memory.dmp

          memory/544-8-0x0000000000400000-0x00000000016D3000-memory.dmp

          memory/544-9-0x0000000001940000-0x0000000001A40000-memory.dmp

          memory/544-10-0x0000000000400000-0x0000000000438000-memory.dmp

          memory/544-14-0x0000000000400000-0x00000000016D3000-memory.dmp

          memory/544-15-0x0000000000400000-0x00000000016D3000-memory.dmp

          memory/544-16-0x0000000000400000-0x0000000000438000-memory.dmp