Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d54160b3d949276…

MALICIOUS

PDF

34.3 KB Created: 2021-07-02 05:07:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 04daaa2ca13e8c1b264c3eb0d722170e SHA-1: 2adc8aa0427a9aeec9609668a5904702ada942ef SHA-256: 3d54160b3d9492763148f4f688bf7118ff9e025a40b74f417e7f5e277559523c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites. The presence of embedded URLs and the nature of the lures indicate a likely attempt to deliver a second-stage payload or lead users to a credential harvesting page.

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/item-roblox-free-game-hack In PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/aimbot-hacks-for-roblox-cbro_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/free-roblox-link_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/roblox-free-robux-hack-2021-generator-cheat_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00002e94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E94 22592 bytes
SHA-256: ec574c65e41d80d9395176009b282f64875392d090d1c57ec0ee3d1949bb2f98
font_01_sfnt_off00006137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6137 19016 bytes
SHA-256: a737f6e7ce05dff0e5b26b62383a617fa478d8a2da8f43f9e6d6d02d246a6c7c

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