Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee10fba9273ba50…

MALICIOUS

PDF

33.9 KB Created: 2021-06-20 00:46:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1abccbb9a865045278eb37626939aef2 SHA-1: 6b51c336061f37f18f0433e932992d827ce04ad2 SHA-256: cee10fba9273ba50c7bf60e5342810c3da0850296d8b29ab93b38ff990dd4abd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including a critical one to a known malicious redirector at 'http://netcdn.co/app/431946152/bleu-roblox-hack-free-game-hack'. This redirector is likely used to serve a second-stage payload or phish for credentials. The document's content and heuristics strongly suggest a lure for game-related cheats or hacks, a common social engineering tactic.

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/bleu-roblox-hack-free-game-hack In PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/free-robux-v3m_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/hot-to-get-free-robux-2021-may_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/free-account-roblox-totoo_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/free-robux-giveaway-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/console-roblox-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/how-to-get-any-item-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/roblox-hacks-for-mac-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/pepsi-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/island-royale-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/hacks-for-roblox-are-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/how-to-get-free-20210-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/how-to-hack-roblox-accounts-easy-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/how-to-get-priviate-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/fly-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/free-coins-on-coin-master_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
font_00_sfnt_off00002f4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4B 21956 bytes
SHA-256: be2f948e77391e7f818b3392b068b9ed7d5b2e00c12319203048621c42249bb1
font_01_sfnt_off00005fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD1 18960 bytes
SHA-256: 87af332c434de4346bae2ec48a804c6b91c0be1bb89498fbf13f7d0c8f31ebc9

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