PDF malware analysis — malicious · 4a29dfe4b2c12ae7

MALICIOUS

PDF

42.0 KB Created: 2021-05-12 07:32:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 41b21f68eaf37d0547df0fb57281ed82 SHA-1: 6a2e69dcafd904f7b7550e096a4684247cf03dab SHA-256: 4a29dfe4b2c12ae7abc77dcf2430d4e5203fbbf7ba31c9a20551810f0d2714ee

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/431946152/robux-hack-generator-game-hack PDF link annotation
- http://www.sovtigaz.ru/f/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-link-spin_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/get-free-robux-today_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-robux-live_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-free-bonus_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_off000048b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48B6	24596 bytes
SHA-256: `cc2ce6293e3b2fdbeda4ddb9368cdd81da5025579ad9bce22089678d989f4095`
`font_01_sfnt_off00008157.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8157	18352 bytes
SHA-256: `f5433ce3dc9930d213a8e7315569ee207b9df6dd56817c97a1fb358bc14a6a3b`

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