PDF malware analysis — malicious · 09a8972a766f9222

MALICIOUS

PDF

42.7 KB Created: 2021-05-18 05:11:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 26d4bb99859a0d1046a5b977fd9a41c7 SHA-1: a1182c451138add047dc6a60cfa90a8ee0a5b737 SHA-256: 09a8972a766f92220479df1bb2aab7cfc7897b1ccc6a65c642863ef0361a6e53

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free spins, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the embedded URL is a clear indicator of a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the nature of the lure and the external URL suggest a phishing or social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-heaven-free-spins-link-2021-today-game-hack PDF link annotation
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-free-fire_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/get-roebucks-com_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-spins-coinmaster_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-roblox-codes_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/completed-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/robux-games_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-download_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_003_off00004b2b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B2B	24240 bytes
SHA-256: `b8d2626a90e50f0ae44f7f6017ce6c2fcc781a1b56cc79ce8653b3a5f5441c72`
`font_01_sfnt_off00008285.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8285	18928 bytes
SHA-256: `6c02eefe1d6ccefe48eb04d1ff5bd485ce1aa9bd94615c823ea62003c3b46c2b`

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