PDF malware analysis — malicious · a63adb9dbd04cd7a

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 02:36:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: be85435621feadb46846839ec1098aa2 SHA-1: 4a482b51f400f5519ac6f635fa0b26a758847675 SHA-256: a63adb9dbd04cd7a0d3f83478ee78f0ebf2864500c423a80145040066f80811d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Roblox, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or redirection attempt to a site likely hosting malware or further malicious content.

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/hacks-roblox-game-hack PDF link annotation
- https://www.dotnotion.com/uploaded_files/userfiles/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/the-final-stand-2-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/free-robux-copy-pasta_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/free-robux-clothes_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/roblox-robux-hack-apk-android_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/roblox-free-no-download-or-install_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-hack-in-roblox-jailbreak-2021-february_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-hack-somebody-on-roblox_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/hack-roblox-beta-one-piece-legendary_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/map-kat-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/hacker-roblox-robux_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_off000032be.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32BE	22328 bytes
SHA-256: `a047889e01f67151039aa5ae6bf93fb7b5bcff7ea319bd5c80925c2e2a71be1e`
`font_01_sfnt_off0000646d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x646D	18656 bytes
SHA-256: `07359c60a6ef94fa5b03a0cb2f18a240aa89d678f31d64c89b09ee8dd6172433`

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