Malicious PDF — malware analysis report

Static analysis result for SHA-256 06924097ee01dc01…

MALICIOUS

PDF

44.4 KB Created: 2021-06-13 14:54:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cd8a316b9b45e4c27981e144e84baef9 SHA-1: fc74b2c58cf957876bf66cc2d99e4d5e42c8059b SHA-256: 06924097ee01dc013eb53f1c7a711d432b1c347d73f41f91470d63c4b8b27cc8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures related to game hacks and free currency. The primary malicious URL identified is http://netcdn.co/app/431946152/april-2021-hack-roblox-game-hack, which is part of a known malicious redirector chain. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/april-2021-hack-roblox-game-hack In PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/roblox-free-robux-scam-discord_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/her-roblox-acount-got-hacked_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-robux-rbx-membership-claims-and-generators_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-draw-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/will-roblox-be-free-on-ps4_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/roblox-naruto-final-bond-lvl-hack_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/roblox-games-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/roblox-speed-hack-feb-10_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/how-to-get-dinosaurs-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/cheat-code-sonic-new-map-roblox_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-roblox-party-invitations_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/how-to-get-any-free-robux-item_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/hacking-on-ipad-roblox_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/can-i-download-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/get-free-roblox-bucks_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/how-to-get-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.colgr.com/wp-content/uploads/fsqm-files/free-roblox-accounts-2021-january_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000517e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x517E 24140 bytes
SHA-256: 21a5c4e37b9fd1a6b0f672b8f8caf8fedd8507533705f857712d9a77a5e46e24
font_01_sfnt_off000088c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C9 18880 bytes
SHA-256: 73ce3f4a3036870d6fdfbe3f26239590997d4bc50d01b4f18203e018f199fa59

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