PDF malware analysis — malicious · fe27b1dd66012b7e

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 13:57:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 50a0bf7f43e279edb60a43d99c13c81b SHA-1: 63bdb798a00a6e6f75aabe4fff6496c1909227f9 SHA-256: fe27b1dd66012b7e049aa20ff7f89525b6e8ef1b061a98c02eaaa734b97b89bf

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-real-game-hack PDF link annotation
- http://autoskola-scp.com/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
- http://autoskola-scp.com/files/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
- http://autoskola-scp.com/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://autoskola-scp.com/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/regal-world-coin-master_GM406889139.pdfIn PDF document text
- http://autoskola-scp.com/files/how-to-free-hair-in-roblox_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/roblox-critical-strike-cheats_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/block-best-robux_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/rocash-free-robux_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/free-roblox-game-publicity_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/how-to-hack-into-any-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://autoskola-scp.com/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/free-roblox-birthday-cards_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
- http://autoskola-scp.com/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
- http://autoskola-scp.com/files/roblox-pet-simulator-hack-script_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/free-to-wear-straw-hat-roblox_GM431946152.pdfIn PDF document text
- http://autoskola-scp.com/files/www-coinmaster_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_off00003197.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3197	22848 bytes
SHA-256: `08b4ceebf05dd38bf232dbce7abdca5b43328e50b9de276d0375da723fe65013`
`font_01_sfnt_off000064a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64A9	18788 bytes
SHA-256: `4bc1fb5241f7d1727492069c2276e888dd2add0fc79522b75a602c51baadbe08`

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