PDF malware analysis — malicious · 69a3870c19a100ab

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 08:46:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: cf6c6d5ef8bbf2a5e6bb982093e8ad8e SHA-1: f10e8ce094c93139418ee0e8d277533c89551589 SHA-256: 69a3870c19a100ab00c3dfbcc261786af81bf845cce02edf59e82bbc7c74e2ca

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/406889139/coin-master-daily-free-spins-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/shirt-roblox-template-free-shipping_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-teasure-hunt-simulator-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/counter-blocks-roblox-offensive-hacks_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-newgen-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-download-for-windows-7-free_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-items-site_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-if-join-group_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/games-in-roblox-that-give-you-free-robux-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-online-unblocked_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/cheat-roblox-building-simulator_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/script-for-free-admin-on-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-card-codes-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-code-in-muder-mystery-2_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hacked-game-database_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_off00003028.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3028	23048 bytes
SHA-256: `fc487e0c3c61a6f5c10f8ad179173f299aa2394bdf6a89eb9c9dbb9713aebcb2`
`font_01_sfnt_off000063d2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63D2	18596 bytes
SHA-256: `d4477381221bf12ecca5ad3e1f3dc1fc74afabeab8ec0ad27ac375f28b3d2402`

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