Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6b27f11603889dc…

MALICIOUS

PDF

33.8 KB Created: 2021-07-03 11:22:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 210e9936f58a6d5269e70069d54325b7 SHA-1: a98237a80945dc0159327c2baa656a9b71fee441 SHA-256: d6b27f11603889dc96341c533c24c825e441bf9d3a18738cf1c871c519f78d59
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/free-coin-and-spin-link-game-hack PDF link annotation
    • http://lib.uho.ac.id/library/repository/como-tener-mucho-dinero-en-jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/roblox-mad-city-cheat-codes-website_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/lvl-7-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/pubg-uc-or-ag_GM1330123889.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/minecraft-hacks-18-9_GM479516143.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_off00002f85.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F85 22276 bytes
SHA-256: e7001d51c4f18d60bbf247f6284d8d74a491e443a2fe919f93ab04224a9b9282
font_01_sfnt_off00006112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6112 18412 bytes
SHA-256: 2ba87999f412b34b7b045db27ef71f7741e94ad18d1cd31c0de9f112f358b237

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