Overview

overview

10

Static

static

1286f05c8e...aa.exe

windows7_x64

10

1286f05c8e...aa.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    43s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    03-06-2022 15:16

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General

  • Target

    1286f05c8e544ee2a3c1818a28f4f05d9b2c5d802fc413cd210fadeb537437aa.exe

  • Size

    1.7MB

  • MD5

    5052bb8fdec5fed9db55c44c11cfc568

  • SHA1

    a5b781562d536aeb098113257641b704c2d18715

  • SHA256

    1286f05c8e544ee2a3c1818a28f4f05d9b2c5d802fc413cd210fadeb537437aa

  • SHA512

    1cef862fb24e26f37167fe385e47a5c22fc7f2a011315b9a019203ac94e651084d6cf059d0db7f0b1ef7a917cfdad8a3f56bf727a6c6178e0610c261b4a194fa

Score
10/10
buerevasionloader

Malware Config

Extracted

Family

buer

C2

http://kload01.info/

http://kload02.info/

Signatures

  • Buer

    Buer is a new modular loader first seen in August 2019.

    loaderbuer
  • Buer Loader 2 IoCs

    Detects Buer loader in memory or disk.

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

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    evasion
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1286f05c8e544ee2a3c1818a28f4f05d9b2c5d802fc413cd210fadeb537437aa.exe
    "C:\Users\Admin\AppData\Local\Temp\1286f05c8e544ee2a3c1818a28f4f05d9b2c5d802fc413cd210fadeb537437aa.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:2040

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2040-54-0x000000003F6D0000-0x000000003FB1B000-memory.dmp

    Filesize

    4.3MB

    Download

  • memory/2040-55-0x0000000077810000-0x0000000077990000-memory.dmp

    Filesize

    1.5MB

    Download

  • memory/2040-56-0x000000003F6D0000-0x000000003FB1B000-memory.dmp

    Filesize

    4.3MB

    Download