PDF malware analysis — malicious · f46a720ddfcdcdff

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 00:32:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: c39ce2c9b081f7c4214034b2f6799409 SHA-1: 3f321ee8f1b3086edf9714f9a1bb14bd582452c3 SHA-256: f46a720ddfcdcdff14c533f7afafa267acd04988ddc58a40a50c862109cc3ec0

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.co/app/431946152/como-hacker-roblox-sin-riesgo-de-baneo-game-hack PDF link annotation
- https://www.nara.org.uk/uploads/files/files/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/rbx-com_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/minecraft-com-free_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/get-free-robux-today_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-groups-popular_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/freespinandcoin_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-spins-coinmaster_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/earn-rbx_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-sword-blox-online-hack_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_off00002f7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F7C	22416 bytes
SHA-256: `bb6f1396e553d93ea308cd58500965e8a58c287b358adc80808278a72b92f983`
`font_01_sfnt_off0000618f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x618F	19204 bytes
SHA-256: `e314963ce409e16d90dac93d1dfbef97dc4e29b56f2729728358122ce8be2eb8`

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