Malicious PDF — malware analysis report

Static analysis result for SHA-256 519e774f6c960aed…

MALICIOUS

PDF

33.5 KB Created: 2021-06-19 06:45:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: cc7186edd648f593b0624c2dbe8784ce SHA-1: d7c7ced2bb283033ed400110661c86ca790f3bd7 SHA-256: 519e774f6c960aed788c891d706fc9593210bde64d073d2a6fe8ed7b456d4c02
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to entice users. It contains multiple embedded URLs, including a primary malicious redirector at http://netcdn.co/app/431946152/roblox-free-codes-live-game-hack. The document's structure and embedded links suggest it is designed to redirect users to potentially malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-free-codes-live-game-hack In PDF document text
    • https://vierabyragazze.com/upload/files/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-800-free_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-promo-codes-in-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-minecraft-coins_GM479516143.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_off00002e07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E07 21648 bytes
SHA-256: 1039cd34bac91176880d0eac1ad48077fb57ddfc877c4abe841005e6bdae679b
font_01_sfnt_off00005d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9B 19056 bytes
SHA-256: 53f4000905aa1e06a4cfc02f4d7efb79094b1f0f20be05c5a1a81e89bf78f192

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