Analysis

  • max time kernel
    150s
  • 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
    01-01-2025 07:57

General

  • Target

    3fdf3422e1b73f087f3f02216b258e9816709786a8e639a21a2d7b0f9118092b.exe

  • Size

    5.0MB

  • MD5

    0c7c00ca271f7515cec3422471b4dc1d

  • SHA1

    c5370ab49e18b77a7cad15810bf6753b4a86800c

  • SHA256

    3fdf3422e1b73f087f3f02216b258e9816709786a8e639a21a2d7b0f9118092b

  • SHA512

    9fc0db1b6758dcc041a8e90328a476f3932abfceadad21dc979b4377fc49a204042d74e8bc1e6b3eaa86611fd566cea6baad214e6717f7be12ec22fbec8cd293

  • SSDEEP

    49152:tFcdrrX+hk6rGgsmDPAZcIVRKkfvTz/zgxYTtcJhwcWcw+:iHkk6rhPD4/RNkxYxf

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\3fdf3422e1b73f087f3f02216b258e9816709786a8e639a21a2d7b0f9118092b.exe
    "C:\Users\Admin\AppData\Local\Temp\3fdf3422e1b73f087f3f02216b258e9816709786a8e639a21a2d7b0f9118092b.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:4052
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1492
      2⤵
      • Program crash
      PID:228
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4052 -ip 4052
    1⤵
      PID:2404

    Network

    • flag-us
      DNS
      8.8.8.8.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      8.8.8.8.in-addr.arpa
      IN PTR
      Response
      8.8.8.8.in-addr.arpa
      IN PTR
      dnsgoogle
    • flag-us
      DNS
      88.210.23.2.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      88.210.23.2.in-addr.arpa
      IN PTR
      Response
      88.210.23.2.in-addr.arpa
      IN PTR
      a2-23-210-88deploystaticakamaitechnologiescom
    • flag-us
      DNS
      104.219.191.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      104.219.191.52.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      140.32.126.40.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      140.32.126.40.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      197.87.175.4.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      197.87.175.4.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      241.42.69.40.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      241.42.69.40.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      181.129.81.91.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      181.129.81.91.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      83.210.23.2.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      83.210.23.2.in-addr.arpa
      IN PTR
      Response
      83.210.23.2.in-addr.arpa
      IN PTR
      a2-23-210-83deploystaticakamaitechnologiescom
    • flag-us
      DNS
      172.214.232.199.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      172.214.232.199.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      13.227.111.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      13.227.111.52.in-addr.arpa
      IN PTR
      Response
    • 185.215.113.206:80
      3fdf3422e1b73f087f3f02216b258e9816709786a8e639a21a2d7b0f9118092b.exe
      260 B
      5
    • 8.8.8.8:53
      8.8.8.8.in-addr.arpa
      dns
      66 B
      90 B
      1
      1

      DNS Request

      8.8.8.8.in-addr.arpa

    • 8.8.8.8:53
      88.210.23.2.in-addr.arpa
      dns
      70 B
      133 B
      1
      1

      DNS Request

      88.210.23.2.in-addr.arpa

    • 8.8.8.8:53
      104.219.191.52.in-addr.arpa
      dns
      73 B
      147 B
      1
      1

      DNS Request

      104.219.191.52.in-addr.arpa

    • 8.8.8.8:53
      140.32.126.40.in-addr.arpa
      dns
      72 B
      158 B
      1
      1

      DNS Request

      140.32.126.40.in-addr.arpa

    • 8.8.8.8:53
      197.87.175.4.in-addr.arpa
      dns
      71 B
      157 B
      1
      1

      DNS Request

      197.87.175.4.in-addr.arpa

    • 8.8.8.8:53
      241.42.69.40.in-addr.arpa
      dns
      71 B
      145 B
      1
      1

      DNS Request

      241.42.69.40.in-addr.arpa

    • 8.8.8.8:53
      181.129.81.91.in-addr.arpa
      dns
      72 B
      147 B
      1
      1

      DNS Request

      181.129.81.91.in-addr.arpa

    • 8.8.8.8:53
      83.210.23.2.in-addr.arpa
      dns
      70 B
      133 B
      1
      1

      DNS Request

      83.210.23.2.in-addr.arpa

    • 8.8.8.8:53
      172.214.232.199.in-addr.arpa
      dns
      74 B
      128 B
      1
      1

      DNS Request

      172.214.232.199.in-addr.arpa

    • 8.8.8.8:53
      13.227.111.52.in-addr.arpa
      dns
      72 B
      158 B
      1
      1

      DNS Request

      13.227.111.52.in-addr.arpa

    • 8.8.8.8:53

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4052-0-0x00000000009C0000-0x0000000000EB8000-memory.dmp

      Filesize

      5.0MB

    • memory/4052-1-0x0000000077314000-0x0000000077316000-memory.dmp

      Filesize

      8KB

    • memory/4052-3-0x00000000009C0000-0x0000000000EB8000-memory.dmp

      Filesize

      5.0MB

    • memory/4052-2-0x00000000009C1000-0x0000000000C0A000-memory.dmp

      Filesize

      2.3MB

    • memory/4052-4-0x00000000009C0000-0x0000000000EB8000-memory.dmp

      Filesize

      5.0MB

    • memory/4052-5-0x00000000009C1000-0x0000000000C0A000-memory.dmp

      Filesize

      2.3MB

    • memory/4052-6-0x00000000009C0000-0x0000000000EB8000-memory.dmp

      Filesize

      5.0MB

    • memory/4052-7-0x00000000009C0000-0x0000000000EB8000-memory.dmp

      Filesize

      5.0MB

    • memory/4052-8-0x00000000009C0000-0x0000000000EB8000-memory.dmp

      Filesize

      5.0MB

    • memory/4052-9-0x00000000009C0000-0x0000000000EB8000-memory.dmp

      Filesize

      5.0MB

    • memory/4052-10-0x00000000009C1000-0x0000000000C0A000-memory.dmp

      Filesize

      2.3MB

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