Malicious PDF — malware analysis report

Static analysis result for SHA-256 265072a5d9c48ae9…

MALICIOUS

PDF

44.8 KB Created: 2021-05-19 00:07:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e70086d4d7b26fd344e1c21779c83ab7 SHA-1: 100f17cb33c7b3853806587c4489d8d4be4966fe SHA-256: 265072a5d9c48ae9823f264a019a05b09ba7282cc7099b31dbb84d39a6d3e681
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, with a primary URL pointing to a 'coin master free spins' hack. This lure, combined with heuristics indicating a game hack redirect, strongly suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious workflow designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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.xyz/app/406889139/coin-master-free-spins-haktuts-game-hack PDF link annotation
    • http://avocatultau.eu/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://avocatultau.eu/images/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://avocatultau.eu/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://avocatultau.eu/images/free-robux-generator-com-roblox-hack_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b8c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B8C 24312 bytes
SHA-256: 64c6c82a6bbd7476ad1d36a018299f8c6bba81c273f6a5e1e5bd81c3ea5efe1d
font_01_sfnt_off0000831f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x831F 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD1 18196 bytes
SHA-256: 60e5d1f6f12937761343702ff54c0624bbba5eb6b748e0cd555839fa9283373b

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