Analysis

  • max time kernel
    149s
  • 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
    26-12-2024 07:01

General

  • Target

    9dec0dc2187f00a04677d49d7da3ad45be58142f62e68e3195192465797e9506.exe

  • Size

    2.7MB

  • MD5

    31c6811614e6b7a92d67610651f5a98a

  • SHA1

    77ef9f47c7f5898e8a9726425c9052fff2305b19

  • SHA256

    9dec0dc2187f00a04677d49d7da3ad45be58142f62e68e3195192465797e9506

  • SHA512

    107ab76eebf4c3fa9608786a0545f88e6c4ba083b0869a2e4cd76eb3161530beef228a4c0788ffcc6b77f852442c256908cdf5fc52aa464c2a22ba7bc558338d

  • SSDEEP

    49152:7waI9SBXtQBz02lS3FarZpeB9CrF/SpqO:7waI9SB9Az02lS1QpS9CrF/6qO

Malware Config

Extracted

Family

stealc

Botnet

stok

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\9dec0dc2187f00a04677d49d7da3ad45be58142f62e68e3195192465797e9506.exe
    "C:\Users\Admin\AppData\Local\Temp\9dec0dc2187f00a04677d49d7da3ad45be58142f62e68e3195192465797e9506.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:3180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3180 -s 1484
      2⤵
      • Program crash
      PID:4008
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3180 -ip 3180
    1⤵
      PID:3580

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3180-0-0x0000000000980000-0x0000000000E70000-memory.dmp

      Filesize

      4.9MB

    • memory/3180-1-0x0000000077514000-0x0000000077516000-memory.dmp

      Filesize

      8KB

    • memory/3180-2-0x0000000000981000-0x0000000000998000-memory.dmp

      Filesize

      92KB

    • memory/3180-3-0x0000000000980000-0x0000000000E70000-memory.dmp

      Filesize

      4.9MB

    • memory/3180-4-0x0000000000980000-0x0000000000E70000-memory.dmp

      Filesize

      4.9MB

    • memory/3180-5-0x0000000000980000-0x0000000000E70000-memory.dmp

      Filesize

      4.9MB

    • memory/3180-6-0x0000000000980000-0x0000000000E70000-memory.dmp

      Filesize

      4.9MB

    • memory/3180-7-0x0000000000980000-0x0000000000E70000-memory.dmp

      Filesize

      4.9MB

    • memory/3180-8-0x0000000000980000-0x0000000000E70000-memory.dmp

      Filesize

      4.9MB