Malicious PDF — malware analysis report

Static analysis result for SHA-256 923924f67c9d3916…

MALICIOUS

PDF

43.7 KB Created: 2021-06-04 04:50:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c3e2fb208dda8302d0b99a5e7cba03fa SHA-1: c2343277852d153e313c62954c0338f51d36da46 SHA-256: 923924f67c9d39160c7f74883083b4cb87d9e312b53f09f8a0df5362297e928d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a common lure, presenting itself as a 'Coinmaster Free Cards' generator to entice users into clicking a malicious link. The link, 'https://netcdn.online/app/406889139/coinmaster-free-cards-game-hack', likely leads to a site designed for credential harvesting or malware distribution. The document body and heuristics strongly indicate a phishing or scam attempt.

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/coinmaster-free-cards-game-hack PDF link annotation
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/roblox-rules_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-free-download-pc_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/worst-client_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-hack-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.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_off00004e0c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E0C 25676 bytes
SHA-256: ed5f952276ec480914fd72f85164d332b8ed007f41eb068e651be7b40cd3c2b2
font_01_sfnt_off000088c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C2 18144 bytes
SHA-256: 4e9ac2dffccf12dc152d767ce3e4837f7e1c2082475e153b18622bd7e6b7030e

Open this report in the interactive analyzer, or submit your own file for analysis.