Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f8d0c9a9397e638…

MALICIOUS

PDF

41.3 KB Created: 2021-05-14 21:38:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ead7ea7a7aafffa563a95ee06c7a752b SHA-1: cd0545c41b7ad7c82264c7a98b180aadf55e3cb4 SHA-256: 5f8d0c9a9397e63819012f164789504f168d04e0def4e250e65563b6f08d8555
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/fb-coin-master-game-hack PDF link annotation
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/levvvel-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/robux-redeem_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-no-download-app-but-play-for-free_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_off000048fb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48FB 24448 bytes
SHA-256: 6ea148aec33f4d5ee86fdc9ad3fb23b52fb0a754d55874c95a68741b16d15cf1
font_01_sfnt_off0000801e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801E 17868 bytes
SHA-256: f1489871c2947706b970102a1ba18f5dafd787eb87058c7150b9e8ea04a481ae

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