PDF malware analysis — malicious · abd67d04a1cc5466

MALICIOUS

PDF

34.7 KB Created: 2021-07-07 00:56:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: c9e0b9dadddf0a8fc5832985909e07eb SHA-1: cb7af62e199c30f3c8259a468411ceeb18d19094 SHA-256: abd67d04a1cc5466759ead0e7658cd2c6865010961b8259beb83733516bc70c1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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.tw/app/431946152/free-robux-hack-no-verification-game-hack PDF link annotation
- https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-robux-hack-generato_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/hack-1k-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-hacker-report-system_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-i-cheated-for-this-box_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-mast-hacks_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-get-free-cosmetics-in-roblox_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/can-i-have-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-promo-codes-roblox-may-2021_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/superhero-body-roblox-free_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-coins-for-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.

Filename	Kind	Source	Size
`font_00_sfnt_off00003153.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3153	21952 bytes
SHA-256: `0c6feea9f18d4bd0e3a9c196c8700f9868a79480db96443ccd8e5440d7d331f7`
`font_01_sfnt_off000061f9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61F9	19244 bytes
SHA-256: `96540bd7c84d60e769713d590412c745bf113fce47b0f54684cca50d2dde6ca8`

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