PDF malware analysis — malicious · 06e02fc4cbf693f9

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 20:28:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 21bbb7d454df0560730439c83ad3f001 SHA-1: f8d13fe10d2eb3ba51cda08c5d98b97be75d31c8 SHA-256: 06e02fc4cbf693f978c87e565ace4df46e09653535b835a8c9cb1aa8015a2b65

90 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body also contains this URL and references 'free game hack' and 'sign up', reinforcing the lure. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the primary attack pattern is the redirection to a malicious URL disguised as a game hack generator.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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/479516143/minecraft-sign-up-free-game-hack PDF link annotation
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/robux-free-co_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-roblox-account-generator-youtube_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-hacks-for-roblox-games_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/is-nexusus-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-robux-group_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/how-to-hack-roblox-n-the-co-puter_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-roblox-valentines-generator_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/como-tener-ropa-gratis-en-roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/static-moonactive-net-link_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/script-hack-roblox-piece_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-hack-app_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_off000032b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32B2	22696 bytes
SHA-256: `11febe636869fb977997b0770d798abe299a433da7455f425fe1b26a59086d06`
`font_01_sfnt_off000064c3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64C3	18220 bytes
SHA-256: `6236314a17f57ecfc4f63da4a6b9cb2d9143cd94f6dcae1b1ce204d4da3deb21`

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