PDF malware analysis — malicious · edf4d8372addcb0f

MALICIOUS

PDF

35.4 KB Created: 2021-06-19 04:00:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 62d107e11b9a91633e5259583e887cb4 SHA-1: bfb1b02b041ac2a3a6d940d9d56188756989981d SHA-256: edf4d8372addcb0f19d79a97759e6d2652444a3f33dcc1cdca87727c0f2208f3

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a malicious redirector link that is disguised as a download for game-related content, such as 'I Hacked Nubneb's Account Roblox'. The ML classifier strongly flagged this PDF as malicious. The presence of a visual download button further supports the lure to trick users into clicking the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 3

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/i-hacked-nubneb In PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-robux-download-for-pc_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/video-free-robux-obby_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/20210-robux-promo-code-free_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/furk-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://www.iseas.com/uploaded_files/userfiles/files/free-robux-no-human-verification_GM431946152.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000327b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x327B	22504 bytes
SHA-256: `9a7dddf7a231c01429f02f1783cdc8574a182478993f10ab5ce18daa654535c1`
`font_01_sfnt_off000064b3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64B3	19140 bytes
SHA-256: `d40948a8cfc38f54bd5f1522538887ea63f76d25967d8f07b673ebce48c20b50`

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