Malicious PDF — malware analysis report

Static analysis result for SHA-256 aef70a6110a4b30e…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 16:59:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 47675a748c43fda82d3d1d0f2ef90c8b SHA-1: dea7fa40235c7f199aa500f7843a8e0e5b2c1514 SHA-256: aef70a6110a4b30e0c224b5698892fcfd3676dc4934bdce0938434495d8fc6a6
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.tw/app/406889139/how-do-i-get-free-coins-on-coin-master-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/is-there-a-way-to-hack-stats-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-arcane-adventures-v4-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/what-is-e-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/food-empire-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-tiktok-hands-free_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/cheat-in-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-free-bots_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/easy-points-gg_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-install-roblox-jailbreak-hacks_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-hack-generator-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-only-on-computer_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/change-your-roblox-name-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-do-i-get-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
stream_002_off00002f8d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F8D 23112 bytes
SHA-256: 2ff83a2934f22f7e1d52c38b90b5118c80b066473425c83f7546751c12071d99
font_01_sfnt_off0000639c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 18328 bytes
SHA-256: 6a04932ac6ca333f1cea5f7b71389586d7500447b8a6c901b01ffdb6deb5d03c

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