Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d6529e4c9e4c89b…

MALICIOUS

PDF

44.7 KB Created: 2021-06-04 02:46:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 43f6128d29aae0b46be865b1e8dbb02b SHA-1: ec57b0108ffa69258c293284c6b86751daaa147d SHA-256: 4d6529e4c9e4c89b56f726511ee334b421de7131d4ce59b7fbd7c142132b4812
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 0.9865

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/406889139/coin-master-hack-mod-apk-35-8-game-hack PDF link annotation
    • http://perpus.unpam.ac.id/repository/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/moon-active-games_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-and-spin_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-use-roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-no-human-verification-2021_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
stream_004_off000052a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52A8 24880 bytes
SHA-256: e602e6bea72ed1bb7ee2f8514fa0aa180ffa2891979d96c12c269865b7c8f018
font_01_sfnt_off00008afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFC 18584 bytes
SHA-256: 9fef9964a984aec35e428d7c5ea58c0aeed198036264215a353dd140f93ed428

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