Analysis

  • max time kernel
    38s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    24-07-2022 17:22

General

  • Target

    ca8f4594a6800a308c5cbc8c6325e958e42dd4cf539ad4e01362dcc1ec20142b.exe

  • Size

    1.5MB

  • MD5

    6943e6fa21cf64f70bccdf137160b9ca

  • SHA1

    e0d5fe545d1d17dd1e06f21b6767fb2a20df2e86

  • SHA256

    ca8f4594a6800a308c5cbc8c6325e958e42dd4cf539ad4e01362dcc1ec20142b

  • SHA512

    6e83cb6001bcca7f7376f80e215671a0210e8fc5670a28d7b8373b02d831d3c7b4adaab85b5596d5d7ebe89fce2f75975d6e9a5446f0cf05d0c6d2c50b50d99a

Score
10/10

Malware Config

Extracted

Family

buer

C2

https://loddd01.info/

https://loddd02.info/

Signatures

  • Buer

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

  • Buer Loader 3 IoCs

    Detects Buer loader in memory or disk.

  • 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.

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ca8f4594a6800a308c5cbc8c6325e958e42dd4cf539ad4e01362dcc1ec20142b.exe
    "C:\Users\Admin\AppData\Local\Temp\ca8f4594a6800a308c5cbc8c6325e958e42dd4cf539ad4e01362dcc1ec20142b.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:1656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1656-54-0x000000003FB70000-0x000000003FF56000-memory.dmp

    Filesize

    3.9MB

  • memory/1656-55-0x0000000077620000-0x00000000777A0000-memory.dmp

    Filesize

    1.5MB

  • memory/1656-56-0x000000003FB70000-0x000000003FF56000-memory.dmp

    Filesize

    3.9MB

  • memory/1656-57-0x000000003FB70000-0x000000003FF56000-memory.dmp

    Filesize

    3.9MB

  • memory/1656-58-0x0000000077620000-0x00000000777A0000-memory.dmp

    Filesize

    1.5MB

  • memory/1656-59-0x000000003FB70000-0x000000003FF56000-memory.dmp

    Filesize

    3.9MB