Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d4f4f4731708f91…

MALICIOUS

PDF

42.8 KB Created: 2021-05-17 02:05:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 011d67f88f9ed0aa715bad10c75b94e0 SHA-1: 3eda9dd8c8527fb425941fd2baf8e441891a0365 SHA-256: 1d4f4f4731708f918a1e5ccceca0d167e16bee2ea261af1d1730d3c76014c196
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or free generators. The document body and heuristics indicate a lure for users to click these links, likely leading to further malware or phishing attempts. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/479516143/free-realistic-minecraft-texture-packs-game-hack In PDF document text
    • https://www.manmed.info:443/images/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/robux-download_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/roblox-a_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/woman-roblox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-download-minecraft-for-free-on-android_GM479516143.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_off00004c14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C14 25308 bytes
SHA-256: 3c1061d3cf21a194de79e006fe83c01f24839cdaf55e1a6c364cf378acf95ea9
font_01_sfnt_off00008530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8530 18316 bytes
SHA-256: 3f7dc9828bb789f2f60f74f5e4523efa991fc74e7e634ca87946bd7b638634b9

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