Malicious PDF — malware analysis report

Static analysis result for SHA-256 9611bf38f71bd924…

MALICIOUS

PDF

43.6 KB Created: 2021-05-17 03:54:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ede7d3090697a01fb9091c1f2c0bd7f2 SHA-1: 1e4f3d0004282836a46545b1518dd19fc25aa4dc SHA-256: 9611bf38f71bd9242ebccc4995bfe66d1ee2238ed48c20075d52053bea68b3de
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' and 'game hacks'. The primary lure URL is https://netcdn.xyz/app/431946152/free-limiteds-roblox-game-hack, which is flagged as a known malicious redirector. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/free-limiteds-roblox-game-hack In PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/login-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-free-items_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-links-for-coin-master_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c25.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C25 25604 bytes
SHA-256: e6f122fee1a99e0135e9fe5a4c352d86b8f6d900ffc5808ed8ab84a6c7c389a7
font_01_sfnt_off00008731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8731 18604 bytes
SHA-256: cd6e3b888b69b87eccf2bd9bf0eaf83aa01cccd071b198ee6fa00879ae765b94

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