Malicious PDF — malware analysis report

Static analysis result for SHA-256 93b2a54a77064578…

MALICIOUS

PDF

43.1 KB Created: 2021-05-14 14:31:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4ea3f20830352bc3b6268f2f6153b858 SHA-1: a23981808dbfb53b418c55abcc92786137a0236e SHA-256: 93b2a54a7706457846ca197d040701d7f53ff26ff96cebe050532b47e07bd958
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure URL is https://netcdn.xyz/app/431946152/can-i-get-robux-for-free-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites, likely for further malware delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/can-i-get-robux-for-free-game-hack In PDF document text
    • http://76remont-kvartir.ru/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/games-for-robux_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://76remont-kvartir.ru/images/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D5 25776 bytes
SHA-256: 25dc6cd99d41eb72bff2621b847fd63fa1b0f02b50bbf784109ad0289ff3062b
font_01_sfnt_off0000860a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860A 18344 bytes
SHA-256: 56a64ad9af2fab004080c55c49ec35472f3c2134e95e40197be892b268dd39d5

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