Malicious PDF — malware analysis report

Static analysis result for SHA-256 83e6010972181c1a…

MALICIOUS

PDF

45.5 KB Created: 2021-06-11 10:45:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f1235199d4865eef8f3e294a3449083a SHA-1: d1679427c0e3a8255f9b790c16dd9b46a2a59d74 SHA-256: 83e6010972181c1aebde5c9f19e3bc29480490412e2967192813d95e82942fa3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a 'free generator / game hack' lure. The document body, though heavily obfuscated, contains URLs that align with this theme. The primary URL identified is likely a redirector to a malicious site or a download page for further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-builders-club-free-2021-game-hack PDF link annotation
    • http://suaedy-library.net/repository/free-hair-on-roblox-promo-code_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-unlimited-spin-hack_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-hack-shader_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/wurst-18_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-raindrop-free_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_off00004fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA2 27596 bytes
SHA-256: e9333961246934cfd43ac5d313afda2f47e5910065fe2b877d347551125fbf12
font_01_sfnt_off00008dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD7 18784 bytes
SHA-256: 4153149191e67d52f01cd0258c41321f656f513fd1c3c434fc4ce7ec00b09855

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