Malicious PDF — malware analysis report

Static analysis result for SHA-256 1df6dbaeb57ba4f0…

MALICIOUS

PDF

34.7 KB Created: 2021-06-29 09:54:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c5f4e678cbe7e8f6a72983c4d12504d6 SHA-1: 8a44a0627795416848b041396357c80324fbc67d SHA-256: 1df6dbaeb57ba4f04ec3613022b11e8962eea65f7bf0377229f2c181694f77cf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, that lure users with promises of free game currency or hacks. The document body and heuristics indicate a phishing attempt disguised as a generator or hack. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-robux-in-iphone-6-game-hack In PDF document text
    • http://library.stikessuakainsan.ac.id/repository/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-robux-web-site_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-useing-inspect_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/best-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/adopt-me-roblox-building-hacks_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-inf-health-hack_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-2021-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-hackear-ninguna-encuesta_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/hack-avatar_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-put-in-hacking-scripts-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-robux-no-bot-check-for-real_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-model-roblox-broke-game_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-no-verifications-2021_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.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
font_00_sfnt_off00002e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E18 22804 bytes
SHA-256: afc3743afb0883a99074ca74841d8db6086b5d7831bba3b1c316a0a3d517c61d
font_01_sfnt_off00006113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6113 19492 bytes
SHA-256: 9abbefb82b22e22a7afc4351572a7a0af5547f5219c0f7565f7fa17934ba7179

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