Analysis

  • max time kernel
    125s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2024, 04:01

General

  • Target

    file.exe

  • Size

    1.8MB

  • MD5

    158ea78626bdbb0910bf0921be11498a

  • SHA1

    571ab410ad8cc427c0326addc67e0cdc048eca80

  • SHA256

    f49c8f96ed3eb65ba8ad8ddc1c27e0c5d36a8b0ef0e95c9d7debd5c2b558a38c

  • SHA512

    639da49518c5b4910cd0e864e078317ccc2e9bf94d53f0075fec81e60043229ac4175f0406d5e022dde62c34b3223e8adc6d6b6ccbe79d08bddd1a7b978d33a2

  • SSDEEP

    49152:XreYsq7RJb76xzWxVCYIfkkVqpUwTTzol:beYrT7DVsja3M

Malware Config

Extracted

Family

stealc

Botnet

doma

C2

http://185.215.113.37

Attributes
  • url_path

    /e2b1563c6670f193.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:3656
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4352,i,2727319350781907497,7925939240893079607,262144 --variations-seed-version --mojo-platform-channel-handle=3952 /prefetch:8
    1⤵
      PID:3084

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/3656-0-0x00000000000A0000-0x0000000000742000-memory.dmp

            Filesize

            6.6MB

          • memory/3656-1-0x0000000076FB4000-0x0000000076FB6000-memory.dmp

            Filesize

            8KB

          • memory/3656-2-0x00000000000A1000-0x00000000000C4000-memory.dmp

            Filesize

            140KB

          • memory/3656-3-0x00000000000A0000-0x0000000000742000-memory.dmp

            Filesize

            6.6MB

          • memory/3656-5-0x00000000000A0000-0x0000000000742000-memory.dmp

            Filesize

            6.6MB