Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7428b6440fe3d6…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 14:58:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 9a6862b02bda1b3ae357119a7f611fa3 SHA-1: c43144fdba91f3b5b627faa38a2d5515e2901ed5 SHA-256: fe7428b6440fe3d635e840e8ef424df1706f476ee10d75c37b816ba5966617f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically advertising game hacks and generators. The document body and embedded links strongly suggest a lure to trick users into visiting malicious sites, likely for further exploitation or malware delivery. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/command-hacks-for-roblox-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-speed-hack-robloxity_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/comment-hacker-roblox-avec-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/trickynicky-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/tiktok-free-folowers-4tiktok-site_GM835599320.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/https-wwwrobloxcosims-4-cheats_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/noclip-hack-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-apk-download-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-deep-space-tycoon-hack-script-exploit_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-do-you-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-vpns-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/steve-one-piece-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-cheat-money-on-roblox-retail-tycoon-glich_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
font_00_sfnt_off0000300f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300F 22524 bytes
SHA-256: cc1e8526ffcddae15baadf166e3459cc1650233637986d06160622b2ae86c20b
font_01_sfnt_off000061e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E5 19252 bytes
SHA-256: 058bc676b1f2d1972033a1baadcf00bca503c7ff50f596c657ecd3741581dfff

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