Malicious PDF — malware analysis report

Static analysis result for SHA-256 422f9e465dccec7c…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 11:33:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ee66d6e419add1fc8ed3512fb2ae089d SHA-1: ade26a8142df74de6bc008b2371a31b62f60dd07 SHA-256: 422f9e465dccec7c58a99d0c6d54fda077875e629d2de691f470e1a3c40dbb72
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • 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.
  • 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.online/app/406889139/pop-slots-free-vegas-casino-slot-machine-game-coin-master-game-hack In PDF document text
    • https://labdagatismk1pundong.com/repository/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/pubg-uc-zam_GM1330123889.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/tiktok-free-likercom_GM835599320.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/spin-coin-master_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_004_off000051b8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51B8 24296 bytes
SHA-256: ad97a311c12562105749673b0341c259b848d3c01359a011c194fe862af82824
font_01_sfnt_off000089a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A2 18960 bytes
SHA-256: 1c2867144f4dcbe006f7dd1ea5adad3b4b3257689db3166d94319e477c45a36b

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