PDF malware analysis — malicious · c6d9a598b9d81c7a

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 06:18:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: eec3d17b14c60402ba4622ea9e4ce259 SHA-1: 08dc1013caf9abacac4a1a680e818da5a2038b77 SHA-256: c6d9a598b9d81c7ab771c0893a66d8a70ce6607da286504ca18b52dcc3c238f6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a lure related to game hacks and free spins, 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 URI heuristics indicate a likely attempt to redirect users to a malicious site for further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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/406889139/20210-free-spin-links-for-coin-master-game-hack PDF link annotation
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/tiktok-hearts-free-2021_GM835599320.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-spin-link_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/pubg-uc-buy_GM1330123889.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coinmaster-fan-page_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/free-robux-easy_GM431946152.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/roblox-skin-free_GM431946152.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-spin-ml-link_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
`stream_004_off00005468.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5468	24456 bytes
SHA-256: `ec7b0b25a62913ab3e79bbeccfeedba9d3ae8f8c0486288956b8d4d8f68fcea5`
`font_01_sfnt_off00008c60.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C60	18456 bytes
SHA-256: `0c2189e6946270650e490ca98f5793093c0c1550cf94812332a81fc346291d18`

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