Malicious PDF — malware analysis report

Static analysis result for SHA-256 097904a065a14c2a…

MALICIOUS

PDF

47.2 KB Created: 2021-06-14 01:45:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 88afb1a10437733da788956699c0aa53 SHA-1: 660fb4248b8c28d53e4eec2f42ad93f9aa57adfd SHA-256: 097904a065a14c2a0bb47d6fa6b385c90424a7feb785291d8e3b70f325882793
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure is a link to 'gratis-und-sicher-free-robux-gekommen-game-hack', which is hosted on the netcdn.co domain. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/gratis-und-sicher-free-robux-gekommen-game-hack In PDF document text
    • http://opac.kolejkrim.edu.my/repository/hacks-for-hole-in-the-wall-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-morph-gui-roblox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-cheat-engine-bypass-sandbox_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-games-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://opac.kolejkrim.edu.my/repository/free-black-hair-roblox_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4899 26596 bytes
SHA-256: 25a05f80081ccc1db2417f68741849755552c321f3ee2fb537aeff83547c145a
font_01_sfnt_off000085b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B2 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off000092c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C4 19420 bytes
SHA-256: 1fd07b78f429036bee24734fc3fea0706713a3ba6fde71259344b87ef025f878

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