Malicious PDF — malware analysis report

Static analysis result for SHA-256 0773947dc3ffb2e8…

MALICIOUS

PDF

33.8 KB Created: 2021-06-26 05:43:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bcbdcfad691821a8c052747faea050ba SHA-1: d999ad6b2718fd6b48e6728b4e3d4907cbd3f91a SHA-256: 0773947dc3ffb2e87cfa1f6c9d0cfa8e4cd42da277fab1cea2073280b9d94429
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure for game hacks and cheats, directing users to malicious redirectors. The presence of embedded URLs and a visual download button strongly suggests an attempt to trick the user into downloading a secondary payload. The ML classifier also flagged this document with high confidence.

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/roblox-hack-download-lumber-tycoon-2-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/comment-avoir-la-free-verification-pour-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-free-boy-hair_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-jet-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-de-cuenta1-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/exploit-hack-roblox-free-download-mod-menu_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hacking-peobel_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-download-free-ios_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robloxcom-robloxplay-now-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-game-2021-free-spin-link_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
font_00_sfnt_off00002de8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE8 21292 bytes
SHA-256: 07d4c5697691723839dabccb117e1b9671f7a752e2c0acccb46ae6d4d3a0bf26
font_01_sfnt_off00005c6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6E 19864 bytes
SHA-256: 86151a105756505c772fba8e9172400c84a863d5d1c2cc60b09dd21a6216967b

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