Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea6c1916ce0b11ac…

MALICIOUS

PDF

45.9 KB Created: 2021-06-13 18:09:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8aaa32b22fe40ad173b9d06cdbd3ec92 SHA-1: 52fa2a7d5b376fa54b02f5fa87b32e0760b81543 SHA-256: ea6c1916ce0b11ac809335be0eb3f1f2c761d6589cb98cf236e37f2f543f57b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on them, promising free in-game items or hacks. These links redirect to malicious infrastructure, specifically a URL associated with game hacks and generators. The ML classifier also flagged this PDF as malicious, supporting the conclusion that it is a phishing or scam document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.co/app/431946152/get-free-neon-blue-animal-hat-on-roblox-game-hack In PDF document text
    • https://gryps.de/images/how-to-hack-peoples-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://gryps.de/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://gryps.de/images/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://gryps.de/images/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • https://gryps.de/images/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • https://gryps.de/images/roblox-flee-the-facility-hack-script_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • https://gryps.de/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://gryps.de/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://gryps.de/images/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://gryps.de/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/free-robux_GM431946152.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_004_off0000526e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x526E 26884 bytes
SHA-256: 6ea98e55278e7d19d8f03062353b8ae8bc9a39015561445c6d4555b51df0562f
font_01_sfnt_off00008fac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FAC 18800 bytes
SHA-256: 16ee608e11d85052eeef57f87ae087671b32861f42d19385a056e07bcc51f6b6

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