PDF malware analysis — malicious · 0482d9335ee23151

MALICIOUS

PDF

32.7 KB Created: 2021-07-07 23:15:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 908ee471dfc414461511aeee8a16b5b3 SHA-1: 7ce63f8231948a7ffad6824aa1c29a5b054e4d52 SHA-256: 0482d9335ee231516d17c92de628ce9ff9f423960255b9a8955b0fc17d6a888d

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/roblox-robux-codes-2021-game-hack PDF link annotation
- https://www.toyogas.com.tw/upload/files/why-tiktok-free-download_GM835599320.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-fan-club_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-game-private-free_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/tiny-tanks-cheats-roblox_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-hack-console-download_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/robux-free-wordpress_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-links-coin-master_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-base-wars-the-land-cheats_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/shark-bite-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-use-racist-dolphin-on-free-exploit-roblox_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/does-roblox-have-free-snakes_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-roblox-game-card_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_off00002c08.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2C08	21096 bytes
SHA-256: `4309515cb5c214d2eeb753c443b62a97d53ba4803451b27c668c823e017aa7c4`
`font_01_sfnt_off000059f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x59F4	19204 bytes
SHA-256: `bc750578e017cfee0e53610975505914a1d043d3eab3943ee4073a15e39fd014`

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