Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd1cc55dcea1148…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 14:01:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7202fd07863f31beaab72d509d0bb757 SHA-1: 7169ac99b084f00956ea6420f893edfc207f8487 SHA-256: 9dd1cc55dcea11481145b391dc196ccb553c982cd56c2729ed6478465d40c073
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free items. The primary URL identified, https://netcdn.xyz/app/431946152/free-roblox-clothes-game-hack, is associated with a redirector that likely leads to further malicious content or downloads. The document's structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/free-roblox-clothes-game-hack In PDF document text
    • https://htdvn.com/public/upload/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004850.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4850 26748 bytes
SHA-256: 646dd4ed0ccdf18569dfa5aa522723dbc79aef240900fa6c1591de05ba37278d
font_01_sfnt_off0000847b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x847B 18216 bytes
SHA-256: e50810547e3c30daf02b15d5ac458835679762fa1a68c20d7c153a389bd1cc19

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