PDF malware analysis — malicious · f2d12aebb0f417a8

MALICIOUS

PDF

36.6 KB Created: 2021-07-08 08:04:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 403770d3b6e487180e58c426259c0441 SHA-1: 35c93d61b48c7bdf1e3298880e7b55f0a4cc50c4 SHA-256: f2d12aebb0f417a8c27f027105607784ca8041eac5f68cc7551b1c455157dc02

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/free-robux-no-human-verification-or-survey-or-download-2021-game-hack PDF link annotation
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-robux-hack-no-generator_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/codes-to-get-free-vip-in-roblox_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-robux_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-robux-apk_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/robux-pin-free_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/como-ser-hacker-en-roblox-2021_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/youtube-roblox-working-hack-tool_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/apple-hack-online-roblox_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/roblox-hack-revealed_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/how-to-get-free-robux-2021-auto-redeem_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/coin-master-cheat-free_GM406889139.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
- https://megapolgroup.com/ckeditor/ckfinder/userfiles/files/free-daily-spins-coin-master_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_off000032f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32F6	22472 bytes
SHA-256: `fae38486dd29fe0263a139cd3ce3e38cc5cd91ef5cc996776eadc1624a424af8`
`font_01_sfnt_off00006541.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6541	20608 bytes
SHA-256: `84e083980845d6db402b7178d67bc98d29f4cdbc71d93f4e93f474fc98f39a9a`

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