PDF malware analysis — malicious · d05496b60fccb95e

MALICIOUS

PDF

32.8 KB Created: 2021-07-06 15:04:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: aaf5f29e415add7813f15998ec1664e2 SHA-1: 21158fc85135f24dea2353767316674574e6623d SHA-256: d05496b60fccb95e0d68a450e5b4773c0e3bad2bdea71ecef00b81e29256e04e

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 0.9824

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/roblox-free-robux-generator-game-hack PDF link annotation
- https://www.stileadda.com/uploaded_files/userfiles/files/free-face-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-premium-free_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/is-there-such-thing-as-free-robux_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-roblox-gift-card_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-hack-commands-robux_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-pics_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/hoow-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/clean-master-coins-hack_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-free-exploits-v3rmillion_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/bux-free-robux_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/how-to-hack-roblox-assassin-2021_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/snapes-free-download-roblox_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-ninja-magic-ninja-free_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_off00002ad7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2AD7	22048 bytes
SHA-256: `97e1a3d8d68704343a96ce6e16b7630176b6148256a8560bd15629acde97e509`
`font_01_sfnt_off00005bad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BAD	18896 bytes
SHA-256: `a8435c37e47e08e896321e6274f2685d30d248d21a2818cac5b51dec603f27f9`

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