PDF malware analysis — malicious · 2681879e195efbb3

MALICIOUS

PDF

34.9 KB Created: 2021-06-25 15:43:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 8b8cf032d3aa07ef15805e39840323da SHA-1: c185567709d7261ac988c980170b8f5a7a19dad4 SHA-256: 2681879e195efbb3b26e2577ed9ea2b6081a623e3436611fdc30a55775fd982f

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/roblox-counter-blox-hacken-aimbot-wallhack-game-hack PDF link annotation
- https://c2o-library.net/catalog/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/mad-shitter-roblox-hack_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/all-hack-week-2021-projects-roblox_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/how-to-hack-roblox-scripts_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/roblox-hacks-trail_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/roblox-quick-easy-cheat_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/can-cheat-engine-hack-roblox_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/jailbreak-cheats-for-roblox_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/roblox-noclip-hack-jailbreak-outwitt_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/free-roblox-accounts_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/woman-roblox_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/free-roblox-online-no-download_GM431946152.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/coin-master-hack-apk-with-fb-login_GM406889139.pdfIn PDF document text
- https://c2o-library.net/catalog/repository/free-robux-com-real_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_off000030dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30DC	22068 bytes
SHA-256: `4d7759e65061229c5dbcb87283db8c3ef1582ea529ed6e18497d9b3e4ac9a1a8`
`font_01_sfnt_off000061e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61E7	19644 bytes
SHA-256: `24895c04d39ef11f2c2e07fe614a56745a90f9eca5d9fa01fb3e48896cc41a45`

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