PDF malware analysis — malicious · eaf52358ed1b6f44

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 16:28:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: ac9ccc3fe054e486fcb85c3cb915ee82 SHA-1: 6a65eaf9201c457b5a2e91fee2a22765d62e41ce SHA-256: eaf52358ed1b6f4409d9f625a2e06d3d45643ba37fbc565cff0793811f3db3d5

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/how-to-get-roblox-premium-for-free-2021-game-hack PDF link annotation
- https://klp.com.tr/inc/uploads/userfiles/files/how-to-noclip-in-roblox-using-cheat-engine_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/fake-robux-codes_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-free-play-online-no-download_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/robux-redeem-code-hack_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/new-hacker-on-roblox_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/robux-money_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/get-100-000-000-000-000-000-robux-for-free_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-gift-card-ins-roblox_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/spin-link-coin-master_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-codes-no-human-verification_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_off00002ea6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EA6	21284 bytes
SHA-256: `99e3e09cf3e46e57274b9c593965aa336d1d9ca66f3afb4fcb46f21f0baeb8b9`
`font_01_sfnt_off00005cf7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5CF7	19992 bytes
SHA-256: `5d92c0ac708cb6372069878ce274a0583dd4db4fed5f7a9ab4827dfd753440d4`

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