Malicious PDF — malware analysis report

Static analysis result for SHA-256 270ff430c89a6196…

MALICIOUS

PDF

51.1 KB Created: 2021-06-03 11:07:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 98bc522c94b9053f8498755872a9b711 SHA-1: 6b446a0956e52983345540def4593d999eb2ae99 SHA-256: 270ff430c89a6196a14973caee5621cb020024d4641459a0ef5715143758c1ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and game hack lures, indicating a phishing or scam attempt. The primary malicious URL identified is https://netcdn.online/app/1330123889/pubg-uc-no-human-verification-game-hack, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9724

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.online/app/1330123889/pubg-uc-no-human-verification-game-hack In PDF document text
    • http://library.stieyapan.ac.id/repository/is-tiktok-free-on-voxi_GM835599320.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/tiktok-free-britney_GM835599320.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000522b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x522B 30900 bytes
SHA-256: 8a839e3ae812c5e991ff78f24156071aa89ddea8b75642bb7272e71a8ca8bfa7
font_01_sfnt_off000099ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99AE 2816 bytes
SHA-256: eaaa57724c6c9fa744849bad159cc913dd8c615188bac3ab9dd7265dd83d9e73
font_02_sfnt_off0000a358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA358 18888 bytes
SHA-256: cd7afdb8dca6730defb2d0d13f91d7962bdbd47b4a3583a190a25ebd5fff8b5d

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