Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdfc14454cf20483…

MALICIOUS

PDF

43.9 KB Created: 2021-05-19 20:49:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c9252700c6de30a7d4d12a2f3e30863f SHA-1: 6e545328b5dbfee2cfe66b18e5518cb73ef27e81 SHA-256: fdfc14454cf20483afc9b7a0488c54214a07d23c9104a81f2c539dcde30007fe
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors and sites offering game hacks, presented under a fake CAPTCHA lure. The primary malicious link is https://netcdn.xyz/app/835599320/free-tiktok-emails-game-hack, which is designed to trick users into executing further malicious actions. The document's structure and content strongly suggest a phishing or scam attempt aimed at users seeking in-game advantages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/835599320/free-tiktok-emails-game-hack In PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/regal-world-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/make-free-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/weird-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d4d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D4D 26820 bytes
SHA-256: 36351cc0e127a60590595c6bef693be7b6f91af264d89f1f3925554a8bfad956
font_01_sfnt_off00008a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2E 18020 bytes
SHA-256: 74eaf3756a4740631792b6314009fc37dc820fb2d5ea704bf0d564d82053a0de

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