Analysis

  • max time kernel
    124s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2023 16:55

General

  • Target

    7e990b674b0cfafa59c4a2800698c430321223b47a0722d86e0e3f41b5aab344.exe

  • Size

    4.8MB

  • MD5

    805f586cf296bb8e50a11dd01898f4dd

  • SHA1

    f1cbe4fa0adf5c437aacb0aa7dbc39301c4932bf

  • SHA256

    7e990b674b0cfafa59c4a2800698c430321223b47a0722d86e0e3f41b5aab344

  • SHA512

    ff40888e0fb79027fc99bdf57775994453b35a615e5a89f3c22852403191fba908423353335e823e1bb2af7b9907fe1dbeeb1495d12032ca848df0a207fa8051

  • SSDEEP

    98304:oluFSBraq4cZUfKR6yJRNbQ5ajRChRRhO3xrToyX08tVrtVM3WURxn85Bt:TFSB+q4aUfKxRNb9RbxrTom08tVBVwWd

Malware Config

Extracted

Family

privateloader

C2

http://91.241.19.125/pub.php?pub=one

http://sarfoods.com/index.php

208.67.104.60

Attributes
  • payload_url

    https://cdn.discordapp.com/attachments/910842184708792331/931507465563045909/dingo_20220114120058.bmp

    https://c.xyzgamec.com/userdown/2202/random.exe

    http://193.56.146.76/Proxytest.exe

    http://www.yzsyjyjh.com/askhelp23/askinstall23.exe

    http://privacy-tools-for-you-780.com/downloads/toolspab3.exe

    http://luminati-china.xyz/aman/casper2.exe

    https://innovicservice.net/assets/vendor/counterup/RobCleanerInstlr95038215.exe

    http://tg8.cllgxx.com/hp8/g1/yrpp1047.exe

    https://cdn.discordapp.com/attachments/910842184708792331/930849718240698368/Roll.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/930850766787330068/real1201.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/930882959131693096/Installer.bmp

    http://185.215.113.208/ferrari.exe

    https://cdn.discordapp.com/attachments/910842184708792331/931233371110141962/LingeringsAntiphon.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/931285223709225071/russ.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/932720393201016842/filinnn.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/933436611427979305/build20k.bmp

    https://c.xyzgamec.com/userdown/2202/random.exe

    http://mnbuiy.pw/adsli/note8876.exe

    http://www.yzsyjyjh.com/askhelp23/askinstall23.exe

    http://luminati-china.xyz/aman/casper2.exe

    https://suprimax.vet.br/css/fonts/OneCleanerInst942914.exe

    http://tg8.cllgxx.com/hp8/g1/ssaa1047.exe

    https://www.deezloader.app/files/Deezloader_Remix_Installer_64_bit_4.3.0_Setup.exe

    https://www.deezloader.app/files/Deezloader_Remix_Installer_32_bit_4.3.0_Setup.exe

    https://cdn.discordapp.com/attachments/910281601559167006/911516400005296219/anyname.exe

    https://cdn.discordapp.com/attachments/910281601559167006/911516894660530226/PBsecond.exe

    https://cdn.discordapp.com/attachments/910842184708792331/914047763304550410/Xpadder.bmp

Signatures

  • PrivateLoader

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

  • 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
  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7e990b674b0cfafa59c4a2800698c430321223b47a0722d86e0e3f41b5aab344.exe
    "C:\Users\Admin\AppData\Local\Temp\7e990b674b0cfafa59c4a2800698c430321223b47a0722d86e0e3f41b5aab344.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
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      PID:1708
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:1688
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:1264

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Defense Evasion

      Virtualization/Sandbox Evasion

      1
      T1497

      Discovery

      Query Registry

      2
      T1012

      Virtualization/Sandbox Evasion

      1
      T1497

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1708-140-0x0000000000400000-0x0000000000668000-memory.dmp
        Filesize

        2.4MB

      • memory/1708-148-0x0000000000400000-0x0000000000668000-memory.dmp
        Filesize

        2.4MB

      • memory/1708-147-0x0000000000400000-0x0000000000668000-memory.dmp
        Filesize

        2.4MB

      • memory/1708-144-0x0000000000400000-0x0000000000668000-memory.dmp
        Filesize

        2.4MB

      • memory/1708-142-0x0000000000400000-0x0000000000668000-memory.dmp
        Filesize

        2.4MB

      • memory/1708-141-0x00000000005D88A2-mapping.dmp
      • memory/4956-137-0x00000144ED5C0000-0x00000144ED636000-memory.dmp
        Filesize

        472KB

      • memory/4956-139-0x00007FFFE81E0000-0x00007FFFE8CA1000-memory.dmp
        Filesize

        10.8MB

      • memory/4956-138-0x00000144ED510000-0x00000144ED52E000-memory.dmp
        Filesize

        120KB

      • memory/4956-143-0x0000000000F10000-0x0000000001764000-memory.dmp
        Filesize

        8.3MB

      • memory/4956-133-0x0000000000F10000-0x0000000001764000-memory.dmp
        Filesize

        8.3MB

      • memory/4956-145-0x00007FFFE81E0000-0x00007FFFE8CA1000-memory.dmp
        Filesize

        10.8MB

      • memory/4956-146-0x00007FF806F90000-0x00007FF807185000-memory.dmp
        Filesize

        2.0MB

      • memory/4956-136-0x0000000000F10000-0x0000000001764000-memory.dmp
        Filesize

        8.3MB

      • memory/4956-135-0x00007FF806F90000-0x00007FF807185000-memory.dmp
        Filesize

        2.0MB