PDF malware analysis — malicious · 3fa2deccad080459

MALICIOUS

PDF

45.5 KB Created: 2021-05-19 22:14:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: dcf131b975c89342424d303bdfa6eb82 SHA-1: ab91010a4938bee0d735b934fd032a94b5df51b5 SHA-256: 3fa2deccad080459664fba09d5fd464000a3f9f81d8aa3dcbd1fd1b4a753be53

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 0.9507

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 https://netcdn.xyz/app/406889139/get-free-spins-for-coin-master-game-hack PDF link annotation
- https://www.metal.hr/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://www.metal.hr/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
- https://www.metal.hr/files/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/get-free-robux-now_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/free-robux-discord_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/hack-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/master-coin-free_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/robux-redeem_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/minecraft-client-download_GM479516143.pdfIn PDF document text
- https://www.metal.hr/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b5d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B5D	25760 bytes
SHA-256: `58ad3f387f219d2ab5eff8fcffd63995abcef8e7748a86c3f2ee7d8ee8c94786`
`font_01_sfnt_off0000864b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x864B	2932 bytes
SHA-256: `6a728a9066ba65435d6380d78d87d8ee4d5553deba8217e5dee5b64eeb83287d`
`font_02_sfnt_off00009072.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9072	17884 bytes
SHA-256: `9bf67b2ee87cdcf37b0aaa2d40e70a5836dac1840b9be614bff5a3f1a0edfaa7`

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