PDF malware analysis — malicious · e7d0b980820519ad

MALICIOUS

PDF

42.3 KB Created: 2021-05-17 01:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 164119d5f52c1d40295d14b46892bae3 SHA-1: c76ea7467c2112725e0f020a31ce9709eab3d0bc SHA-256: e7d0b980820519adf572dfcdfa2f7bbf30ae5042686c8765ceea8d26af472a97

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector, specifically pointing to `https://netcdn.xyz/app/406889139/ultimate-free-spins-coin-master-game-hack`. This lure is consistent with phishing or malware distribution campaigns. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/ultimate-free-spins-coin-master-game-hack PDF link annotation
- https://www.audipec.com.br/images/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://www.audipec.com.br/images/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
- https://www.audipec.com.br/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- https://www.audipec.com.br/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- https://www.audipec.com.br/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
- https://www.audipec.com.br/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.audipec.com.br/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
- https://www.audipec.com.br/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/free-robux-offers_GM431946152.pdfIn PDF document text
- https://www.audipec.com.br/images/coin-master-fan-page_GM406889139.pdfIn PDF document text
- https://www.audipec.com.br/images/inappropriate-roblox-games-2021_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
`stream_003_off000049d5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49D5	25096 bytes
SHA-256: `330fd48249419db026e5bfa9de798954201a02f76b81c85473c1b5d39562f392`
`font_01_sfnt_off000082fd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82FD	18408 bytes
SHA-256: `069e81d139e88509d82e8224148cc48daf359350e2997d733607192457d28ec7`

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