Analysis

  • max time kernel
    80s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    27/02/2022, 07:04

General

  • Target

    telegram_soft/telegram_soft.exe

  • Size

    68.6MB

  • MD5

    ee1154642153932ed0427aa0273f0edc

  • SHA1

    16b0a829d4e1ecaf04c8d7b4c2c7ba9fa40007f1

  • SHA256

    a1e2802eb55f371138e0e43d8062a3098ffff5058593fb566360971d49810e2e

  • SHA512

    16e3329d52dcbe3eccfae8f38efa5e8627defebfb700223524e2205b98056c71b34c31d23db8a98449f3d558337ad994702fe999a81e286eafb7ae75a4a059f7

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Loads dropped DLL 38 IoCs
  • Themida packer 6 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: LoadsDriver 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\telegram_soft\telegram_soft.exe
    "C:\Users\Admin\AppData\Local\Temp\telegram_soft\telegram_soft.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:1020
    • C:\Users\Admin\AppData\Local\Temp\telegram_soft\telegram_soft.exe
      "C:\Users\Admin\AppData\Local\Temp\telegram_soft\telegram_soft.exe"
      2⤵
      • Checks BIOS information in registry
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      PID:3464
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3520
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs
    1⤵
      PID:3128
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k netsvcs
      1⤵
        PID:3768

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1020-130-0x00007FFC6F8D0000-0x00007FFC6F8D2000-memory.dmp

              Filesize

              8KB

            • memory/1020-133-0x00007FF72A340000-0x00007FF72AC31000-memory.dmp

              Filesize

              8.9MB

            • memory/1020-132-0x00007FF72A340000-0x00007FF72AC31000-memory.dmp

              Filesize

              8.9MB

            • memory/1020-131-0x00007FF72A340000-0x00007FF72AC31000-memory.dmp

              Filesize

              8.9MB

            • memory/3464-136-0x00007FF72A340000-0x00007FF72AC31000-memory.dmp

              Filesize

              8.9MB

            • memory/3464-135-0x00007FF72A340000-0x00007FF72AC31000-memory.dmp

              Filesize

              8.9MB

            • memory/3464-134-0x00007FF72A340000-0x00007FF72AC31000-memory.dmp

              Filesize

              8.9MB