Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d10f4a9d63c5285…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 06:02:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 77f1d18a4d36b28e15f0b898e5ef3276 SHA-1: 0f376100ea80c5f1b2bc7fd5793304e407ff9be9 SHA-256: 4d10f4a9d63c5285ba946da1f7ef0dd0313f4788e335072bc07b4f04951c5f26
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Robux' and game hacks, directing users to a suspicious URL. The presence of embedded URLs and the 'ML_NYX_PDF_MALICIOUS' heuristic strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it is designed to redirect users to potentially harmful content, likely as part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/how-do-u-get-free-robux-2021-game-hack PDF link annotation
    • https://donrazvitie.ru/images/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/wurst-18_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/rewards-roblox_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-gold-cards-free_GM406889139.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_off000046b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46B0 25484 bytes
SHA-256: 02106f3c65339abf68cc9cbb1816b170bad548f84f35a76a5fcf746fa570af21
font_01_sfnt_off000080e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E8 19040 bytes
SHA-256: 14ed63897d8c38c9b74f4ae6c685ddc963b8153977262fdb6411d06658c720a7

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