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Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2025, 17:41

General

  • Target

    3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe

  • Size

    1.7MB

  • MD5

    774b886af101cbd81218638ff8997b1c

  • SHA1

    5206f2bf6c12b0a89e64d2a4e6b7eca76ec91beb

  • SHA256

    3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5

  • SHA512

    4d0e0485f2a2c3b7cefe18fb0a9ca8260fd26f3e40c8029f8813e2d47686fb74b6ffae8fc859ddb77d56002e181642dbc71f06576b173bfd0b0ab650d03b92ee

  • SSDEEP

    49152:GGuQwAOVggl6i4jHRX0S6dtiWjOIg1t/a:GGHwAOwiKHRE1e8gy

Malware Config

Extracted

Family

stealc

Botnet

brat

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • 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.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
    "C:\Users\Admin\AppData\Local\Temp\3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.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
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4000
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 1492
      2⤵
      • Program crash
      PID:3420
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4000 -ip 4000
    1⤵
      PID:1012

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4000-0-0x0000000000C10000-0x0000000001295000-memory.dmp

      Filesize

      6.5MB

    • memory/4000-1-0x00000000770F4000-0x00000000770F6000-memory.dmp

      Filesize

      8KB

    • memory/4000-2-0x0000000000C11000-0x0000000000C28000-memory.dmp

      Filesize

      92KB

    • memory/4000-3-0x0000000000C10000-0x0000000001295000-memory.dmp

      Filesize

      6.5MB

    • memory/4000-4-0x0000000000C10000-0x0000000001295000-memory.dmp

      Filesize

      6.5MB

    • memory/4000-5-0x0000000000C10000-0x0000000001295000-memory.dmp

      Filesize

      6.5MB

    • memory/4000-6-0x0000000000C10000-0x0000000001295000-memory.dmp

      Filesize

      6.5MB

    • memory/4000-7-0x0000000000C10000-0x0000000001295000-memory.dmp

      Filesize

      6.5MB

    • memory/4000-8-0x0000000000C10000-0x0000000001295000-memory.dmp

      Filesize

      6.5MB