Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b1f2848cad6d015…

MALICIOUS

PDF

33.6 KB Created: 2021-06-19 08:33:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 08f8a3a2632e8f3164305e216d8be5d4 SHA-1: 1e6dbccd55396b48d2e74fe48a2d008246a9fb83 SHA-256: 9b1f2848cad6d0150a4de36adff621536e1a198cbbf003642b0de91923318323
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 0.9980

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 http://netcdn.co/app/431946152/roblox-broken-bones-4-hack-game-hack PDF link annotation
    • https://repository.stikesindramayu.ac.id/repository/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/da-hood-roblox-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-roblox-accounts-with-robux-2021-october_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-hack-killer-queen_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-page_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robuxs-no-offer_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/2021-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/extreme-injector-hack-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-roblox-backdoor-to-earn-robux-v3rmillion_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/get-100-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
font_00_sfnt_off00002d59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D59 22476 bytes
SHA-256: 6e57e477dfa3f554fdf769e30c9c9a0196937def0e6d2ea0d626094463eb50f7
font_01_sfnt_off00005f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1C 18716 bytes
SHA-256: d7548398a4aa33375920799cde9aa2bfe3403c0d8551cb2f113444ef3ad09d12

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