Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7deda9c80013202…

MALICIOUS

PDF

45.6 KB Created: 2021-06-08 23:46:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5727c0ea061025c7a219c7678169e015 SHA-1: 2e2f17553f1340635fc7896605b74822549b64be SHA-256: b7deda9c80013202cface8c32304bae8d177f5f9101d7022744bb4112eaf4ac6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs suggest a phishing attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of numerous malicious redirector links indicates a high likelihood of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/free-roblox-banned-accounts-game-hack In PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-to-get-builders-club-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/get-robux_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-mod-apk-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_off000050f5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50F5 26196 bytes
SHA-256: 3a970f36b7304caba6770c331f1da3ee09a736c77b1ac1c3345107fcf8b51f25
font_01_sfnt_off00008ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA0 18592 bytes
SHA-256: 7054f83f5b891067b9359b96d38e15174caeec22af09edfb262a424821d394b8

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