Malicious PDF — malware analysis report

Static analysis result for SHA-256 285f65f3214c2456…

MALICIOUS

PDF

48.6 KB Created: 2021-06-11 10:36:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6c35c978e39dc0054f82f7a99071ecb SHA-1: 03bfd99897641440148756c400a3dbc51b535b97 SHA-256: 285f65f3214c24567a19f5e71efcc5fc1aae9b2248c7c5758a61cda042764c39
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a malicious website, masquerading as a 'free generator / game hack'. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to lure users to potentially harmful content. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/robux-free-wn-game-hack In PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/roblox-top_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/getrobux-come_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-link_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/comment-hack-sur-roblox-admin_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/boku-no-roblox-hack-cash_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/roblox-comroblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/roblox-shard-seekers-cheat_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/strucid-aimbot_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51D6 28092 bytes
SHA-256: 44283da0cdce9439ece5ad55631d0e879fa7eaa50a6ea8b16a3d3d63944e6594
font_01_sfnt_off000091a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A8 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00009b57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B57 18212 bytes
SHA-256: aa1a39b77a56ff24b135ce424dcc6ae706aecefe1aad538a80a3c787600c2509

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