Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f563dca9777004f…

MALICIOUS

PDF

33.4 KB Created: 2021-07-21 08:53:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 48cd1a2b9f0f4910c7abec47b5edc780 SHA-1: 64cda5b4116054296cffa8cd5113ddfe47d86cfb SHA-256: 1f563dca9777004f94f32c32cb3775c50e13139d468fde51c0173e2d56293cea
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a "GAME_HACK_REDIRECT_LURE" pointing to a URL that promises free spins for Coin Master. The document body and embedded links also reinforce this lure, suggesting the primary goal is to redirect the user to a potentially malicious site. While no scripts were explicitly extracted, the PDF structure itself contains links that are likely intended to initiate a download or further phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/claim-free-spins-coin-master-game-hack PDF link annotation
    • https://maslabaou.com/images/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • https://maslabaou.com/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://maslabaou.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • https://maslabaou.com/images/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • https://maslabaou.com/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://maslabaou.com/images/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://maslabaou.com/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://maslabaou.com/images/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://maslabaou.com/images/get-free-robux-now_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
font_00_sfnt_off00002cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF9 23176 bytes
SHA-256: 0d1c7ed75c5d602434cb25c8d98a509a940172585daf9f1887a9a5710ca9fed7
font_01_sfnt_off0000610b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610B 18220 bytes
SHA-256: a27868aca9095d1db43e3a34661a683bdd93dcaecb4c52cce590f5e85fca806a

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