Resubmissions

29-07-2021 15:09

210729-wzvqb879aa 10

26-07-2021 20:08

210726-9lbbrtep2a 10

26-07-2021 20:05

210726-bdzs4aydgx 9

Analysis

  • max time kernel
    114s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    26-07-2021 20:05

General

  • Target

    Setup.exe

  • Size

    3.2MB

  • MD5

    6a42e481e8c2f649a854b08cdaf73be4

  • SHA1

    66d7883449483a44232053f77ed1701c3c3ac9e3

  • SHA256

    3f4a6504fe8dc05ff75fe4a3bdf27eb509b2431ebaf4e189c23b9297ea300f19

  • SHA512

    9d4b1d3ffafebf0faebe550f2d3064a1f515b908e049a5aca07b151d8bfe165d545f244bfd3960283a9310c18e50968834dc3fc471258ef8ddf7541e597d87be

Malware Config

Signatures

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

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

  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3156

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3156-114-0x0000000077C00000-0x0000000077D8E000-memory.dmp

    Filesize

    1.6MB

  • memory/3156-116-0x00000000008B0000-0x00000000008B1000-memory.dmp

    Filesize

    4KB

  • memory/3156-118-0x00000000058C0000-0x00000000058C1000-memory.dmp

    Filesize

    4KB

  • memory/3156-119-0x0000000005370000-0x0000000005371000-memory.dmp

    Filesize

    4KB

  • memory/3156-120-0x00000000053D0000-0x00000000053D1000-memory.dmp

    Filesize

    4KB

  • memory/3156-121-0x0000000005410000-0x0000000005411000-memory.dmp

    Filesize

    4KB

  • memory/3156-122-0x00000000052B0000-0x00000000058B6000-memory.dmp

    Filesize

    6.0MB

  • memory/3156-123-0x00000000056A0000-0x00000000056A1000-memory.dmp

    Filesize

    4KB