Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e9a8258f975d038…

MALICIOUS

PDF

41.9 KB Created: 2021-05-19 01:39:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 641f2efc7bf6b2b52b8e35864a8b2d57 SHA-1: 719e9bbcafa7b067e9cfeea53f357946a9db21f1 SHA-256: 1e9a8258f975d038796502dde00c6bd5b0a69757396dd7b372ef941f11c4669c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks'. The primary redirect URL identified is https://netcdn.xyz/app/1330123889/pubg-uc-buy-bd-game-hack. The document's structure and embedded links strongly suggest a social engineering lure to drive users to potentially malicious websites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/1330123889/pubg-uc-buy-bd-game-hack In PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/ww-roblox-come_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/100-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/make-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_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
stream_003_off00004776.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4776 25876 bytes
SHA-256: 308d1a45cc00a5c7f78ae7c284ac48684f3092321c369c28b46163670dc724c2
font_01_sfnt_off00008144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8144 18252 bytes
SHA-256: 9451e5fca0303306000edfe7554c8c3ab381970a55708b368469a366b964caf0

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