Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    16/05/2026, 00:14

General

  • Target
    CFXBypass.exe
  • Size 36KB
  • Sample260516-ajnt2act8q
  • SHA256 9df11356c5ac61d2aa7b5425e6322fc016b0ed5790dacb201396500b3eee03f7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CFXBypass.exe
    "C:\Users\Admin\AppData\Local\Temp\CFXBypass.exe"
    1⤵
    • Modifies registry class
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\cbebfb67-07e4-4bfa-8261-8160e52c62ca\background.exe
      "C:\Users\Admin\AppData\Local\cbebfb67-07e4-4bfa-8261-8160e52c62ca\background.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:416
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --headless --incognito
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4860
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --headless --disable-gpu
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2984
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" --headless --disable-gpu
        3⤵
          PID:2700
    • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
      "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
      1⤵
        PID:1048
      • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
        "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
        1⤵
          PID:1776

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              __PSScriptPolicyTest_pbngfpmo.zpm.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pbngfpmo.zpm.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512 TLSH

              background.exe

              • Path C:\Users\Admin\AppData\Local\cbebfb67-07e4-4bfa-8261-8160e52c62ca\background.exe
              • Size 29.0MB
              • SHA256 384d494911d5e63e2deb58bedd63d4cefd10b71558937f32af75e6aa5202b098
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/416-97-0x00007FF66C660000-0x00007FF66C88A000-memory.dmp

              memory/416-91-0x0000000140000000-0x000000014028D000-memory.dmp

              memory/416-90-0x00007FFD5CCE0000-0x00007FFD5CEE9000-memory.dmp

              memory/1904-21-0x000000001F6E0000-0x000000001F6EA000-memory.dmp

              memory/1904-25-0x0000000020250000-0x0000000020258000-memory.dmp

              memory/1904-12-0x00007FF436350000-0x00007FF436360000-memory.dmp

              memory/1904-19-0x000000001F6C0000-0x000000001F6DC000-memory.dmp

              memory/1904-20-0x0000000020180000-0x0000000020233000-memory.dmp

              memory/1904-0-0x0000000000260000-0x0000000000270000-memory.dmp

              memory/1904-22-0x0000000020260000-0x000000002027C000-memory.dmp

              memory/1904-23-0x0000000020240000-0x000000002024A000-memory.dmp

              memory/1904-24-0x00000000202A0000-0x00000000202BA000-memory.dmp

              memory/1904-11-0x000000001C710000-0x000000001C720000-memory.dmp

              memory/1904-26-0x0000000020280000-0x0000000020286000-memory.dmp

              memory/1904-27-0x0000000020290000-0x000000002029A000-memory.dmp

              memory/1904-10-0x000000001C710000-0x000000001C720000-memory.dmp

              memory/1904-88-0x000000001C710000-0x000000001C720000-memory.dmp

              memory/1904-9-0x000000001C710000-0x000000001C720000-memory.dmp

              memory/1904-8-0x0000000002420000-0x0000000002442000-memory.dmp

              memory/1904-7-0x000000001C710000-0x000000001C720000-memory.dmp