Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9175b69d86a8c35…

MALICIOUS

PDF

40.7 KB Created: 2021-05-01 14:02:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a9b47d7963d13046ab46b067c5d505e6 SHA-1: 6fa1c1ae3a1ba1c9b8460e1f6c3280133c5d10e3 SHA-256: e9175b69d86a8c357c7e4f245ee26250f11afac63e42b7d1b36651255f5d5a43
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 0.9941

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/431946152/free-roblox-city-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/all-2021-2021-free-roblox-items.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/best-level-7-roblox-hacks-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-on-quiz.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-girl-roblox-clothes.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-noob-outfit-for-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-roblox-admin-for-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/orewards-com-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/download-hack-roblox-2021-fr-bee-swarm-simulator.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/best-admin-hack-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/cheat-roblox-power-simulator.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

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_off00004111.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4111 26480 bytes
SHA-256: a6f30e1f25681e838b26f450e31cca771f085725dd0342ec6de064683137e182
font_01_sfnt_off00007d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D20 18352 bytes
SHA-256: 990796d566343dd9f6beecd6a32c9415085e82a97fe593af943dae0d80d6532d

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