Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccbdede9bda26146…

MALICIOUS

PDF

35.0 KB Created: 2021-06-19 00:26:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 46429f6a333118a4ac38a8f2e5522984 SHA-1: c7d56d7fcf794beb4d30d86fecb6b7056b41070d SHA-256: ccbdede9bda2614691c3a94eecd6e521ad1b87857beb539f08b89e7e922c400f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, leading to a lure for game hacks. The primary link directs to 'http://netcdn.co/app/431946152/btools-hack-roblox-lumber-tycoon-2-game-hack', which is likely intended to deliver a secondary payload or lead to a phishing site. The presence of embedded URLs and the specific heuristic firings strongly indicate a malicious intent to redirect users to harmful content.

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/btools-hack-roblox-lumber-tycoon-2-game-hack In PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-through-walls-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-how-to-make-a-private-server-for-free_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/music-id-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/exploit-for-roblox-2021-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/free-accessories-roblox_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_off00003191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3191 22064 bytes
SHA-256: e5e7b8a0a33b18405f698f79fd7bf4454dd8435a3f6cce3023ec766fb3146aea
font_01_sfnt_off00006243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6243 19464 bytes
SHA-256: 9be4e51c6274b073e7fd845051b62ad00776bb88fe6a445dd23ea17d62ba179a

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