PDF malware analysis — malicious · a66258b04d4a1258

MALICIOUS

PDF

41.7 KB Created: 2021-05-17 17:00:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 963003dada35fcb92fb947d96be190bc SHA-1: a9e90cd3f9b3ab9b963225bd3128dad41393c56b SHA-256: a66258b04d4a12587af3cf431e5653c21f446fa58d4e2d7c5776c4d081d01289

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 0.9971

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/daily-coin-master-free-spin-link-game-hack PDF link annotation
- http://www.sovtigaz.ru/f/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/get-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-and-spin-link_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-robux-quiz_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/flip-master-free-coins_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/master-coin-free-link_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-demon_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/info-roblox-com-robux_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-hack-scripts-pastebin_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
`stream_003_off000047d6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x47D6	24580 bytes
SHA-256: `5738c43ca45f03b34bd756091d9bac8c13de65ea1c11c80a26599cf290f02692`
`font_01_sfnt_off00007ff3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FF3	18476 bytes
SHA-256: `0e8ff706f766ebeac8fd51df3b46864e48e50accc558ba14dc70aa8347bf43ac`

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