PDF malware analysis — malicious · 24108e5f6a7fbcdf

MALICIOUS

PDF

48.5 KB Created: 2021-05-17 06:46:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 48d56ab5f0dd787e3cdab6f7f17bab6c SHA-1: 89dfe46190c3e532213e1fe14dffdcba18b95c4e SHA-256: 24108e5f6a7fbcdff00850d85f6a5caae5cc09a2e63907a5d002dff5b90b6d7b

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure the user to a malicious redirector. The primary malicious URL identified is https://netcdn.xyz/app/431946152/earnrobux-game-hack, which is flagged as a known malicious redirector. The document body and embedded artifacts suggest a scam related to game hacks or free currency, a common social engineering tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.8715

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 https://netcdn.xyz/app/431946152/earnrobux-game-hack In PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-coins_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-gen_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/hack-master-coin_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/robux-miner_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-premium-free_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/oprewards-com-robux_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004845.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4845	25904 bytes
SHA-256: `1e80c1b862c6943703b1032ab2b46ee578205ea4b9aab9ba3928c5cc0d48b6ed`
`font_01_sfnt_off000084cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84CB	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008eb1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EB1	5596 bytes
SHA-256: `9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5`
`font_03_sfnt_off00009b59.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B59	18076 bytes
SHA-256: `2721194a66b32dfdaea4e26ed0bd84b304de41eeda81871a4ffc347c5a8adb25`

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