Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee5e376bca0cf0ca…

MALICIOUS

PDF

46.9 KB Created: 2021-06-03 07:57:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 81efaea65150140d69adae9e5e5a45ba SHA-1: f850d6ba589531e75e5c4e64616fe513d7c984cf SHA-256: ee5e376bca0cf0ca96c59337bb6e48c38a512d44f37cccc2aaccc30f20a6553b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link disguised as a game hack lure, directing users to a suspicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded link and the nature of the lure suggest an attempt to redirect users to a malicious site for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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-quora-game-hack PDF link annotation
    • http://pustaka.fti.unand.ac.id//repository/pokemon-go-free-gyarados_GM1094591345.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/pokemon-go-free-apk-download_GM1094591345.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/minecraft-handbook_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-coin-master-gold-cards_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000501d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x501D 25620 bytes
SHA-256: dccc22ff0336a765496984826667b64a99db8a2746be7ca5f1b3bbb5692405d0
font_01_sfnt_off00008b2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B2E 2944 bytes
SHA-256: 06c0323016b6b02ad316e898f05517d621c65dc58604f3822104f87707123cfb
font_02_sfnt_off00009559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9559 18016 bytes
SHA-256: cc1a19628674345e3b696abd9756b0bb2f88cc670761cbb92aefe1a407817aed

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