PDF malware analysis — malicious · ee42c36b4cd1c318

MALICIOUS

PDF

47.0 KB Created: 2021-06-03 05:54:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: a9c76426c5f9ea4322074ec1e33decf1 SHA-1: 176edcff3c6964b144c6d32028495e83c20aef2a SHA-256: ee42c36b4cd1c3182869397f4a9b11240b17a04e337d50ac1bfc5f994c52d895

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs and a call-to-action button further supports a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded links suggest it is designed to lead the user to a potentially harmful site.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/406889139/best-coin-master-hack-game-hack PDF link annotation
- https://www.andrology.co.uk/uploads/files/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/www-robux-us_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/static-moonactive_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/irobux-com-redeem_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spin-app-reviews_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/pokemon-go-free-ultra-balls_GM1094591345.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coins-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/claim-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005474.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5474	24304 bytes
SHA-256: `34f672ac4e88d67f1e9a0f6e31301ce8b2f870ee8827420f787dc0f63975a073`
`font_01_sfnt_off00008bfd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BFD	2896 bytes
SHA-256: `c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd`
`font_02_sfnt_off000095e2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95E2	17932 bytes
SHA-256: `161872610273fcd28e3a2d1de4471640a9585fd70a08456fd38c7444f511b83a`

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