Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7f28ac5e467abf…

MALICIOUS

PDF

32.4 KB Created: 2021-07-01 19:55:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a29835f86c30aeeac4fc19bcb9d39b99 SHA-1: 4136f457b6549e145e2def8caf6febf55fee1313 SHA-256: 9d7f28ac5e467abfce9b813c124db16d2ee54c0da94ce56fff36e3823e68bc37
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous URLs and a call-to-action phrase, strongly suggesting a phishing or social engineering attempt to trick users into downloading potentially malicious content. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the document's theme of game hacks indicate an attempt to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/hack-coins-roblox-obby-game-hack In PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-any-tycoon-game-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-online-us-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/tiktok-free-followers-mod-apk_GM835599320.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/blackhawk-roblox-free_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/22-500-robux-for-free_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hack-exploit-project-pokemon_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/hacks-counter-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-rank-up-in-a-roblox-group-easy_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-do-i-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-free-adverts_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-roblox-redeem-codes-not-used_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/hack-noclimb-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-hacked-roblox-account-back_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_off00002a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A0B 21808 bytes
SHA-256: c5cf5a172a55cd7462e14f6529b457d846bc63bd60fbbd9c186e38a92c10939b
font_01_sfnt_off00005a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A25 18956 bytes
SHA-256: d252ef8a26620d6b051dd81549db73610fc08c11e696f27df9a1cd223499dcf8

Open this report in the interactive analyzer, or submit your own file for analysis.