Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce92ef7b86dbcf7…

MALICIOUS

PDF

31.7 KB Created: 2021-07-19 17:01:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 91dd58c83d46dfa930b1480e08e485e2 SHA-1: 64bb205bf1e46491a22b4e1824567da18a51789c SHA-256: 7ce92ef7b86dbcf7cf7612652a14e70d55806e5365c1d728e9345ccde336c748
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically a "free Robux Generator" lure. The document's primary function appears to be social engineering, directing users to a potentially harmful website. No scripts were extracted, but the presence of multiple malicious redirector links indicates a high likelihood of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/431946152/free-robux-generator-for-kids-game-hack In PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://elearning.man8-jombang.sch.id/__statics/gudangsoal/files/free-robux-master_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_off00002946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2946 21464 bytes
SHA-256: 99dcdfe55c0d3242eb53a1040c6e5d8964169b6606024c7e90a0605b40dbc632
font_01_sfnt_off0000580d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x580D 18828 bytes
SHA-256: 4cbd0ae17372b8e997376decb208b799e75d96359c1fbbc6a9a72339bd757eb9