Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c82b092799df46…

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 05:07:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1c82239627dec073e26ddc22ca8cab60 SHA-1: aebf8e6eb06fee7706d61553e31efb56a9251ea6 SHA-256: 96c82b092799df4652c34692c33fc5251fcfce764efe6ff9546c65720187ab29
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 0.9832

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.online/app/431946152/lots-of-robux-game-hack PDF link annotation
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-spin-link_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-robux-apk_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
stream_004_off00005353.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5353 27884 bytes
SHA-256: 58b45ba87e0c900bb3bef1c096926a5712e498397fa4fb031d67709008a23ce6
font_01_sfnt_off0000938d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x938D 17952 bytes
SHA-256: 15d841c4e586d0ad4ef984c3fe87cdc5c0f17f998b76c5925d27cfadcec23376

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