Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7801c934a58e9c9…

MALICIOUS

PDF

34.3 KB Created: 2021-07-21 06:42:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c62bc11f8e5d1e2235b5c9195ce1bac8 SHA-1: f1140629684efa85ce30d360e0b16a25fbe171af SHA-256: f7801c934a58e9c94aa92cf5a314586206114d9d49aa00cff83c3197f2ebf9b7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/835599320/free-tiktok-hearts-game-hack. The document body and heuristics indicate a lure for game hacks and generators, suggesting a phishing or scam attempt. No scripts were extracted, but the embedded links are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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.tw/app/835599320/free-tiktok-hearts-game-hack In PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-roblox-accounts-with-robux-2021_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_off00003065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3065 23596 bytes
SHA-256: 812d145c57747c5034bb686676fb2f131fd4439f4f77400b1ea83bfc6fef6aac
font_01_sfnt_off000065fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FD 17684 bytes
SHA-256: d2d02d8ba990aafabbf3c8139bcf1f40ce6ab80109d0e8cf226d19766131c391

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