PDF malware analysis — malicious · 8c0069dff77ff1f1

MALICIOUS

PDF

42.6 KB Created: 2021-05-11 06:32:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 54792a7fe5ea975bdfbafeec1e627aa1 SHA-1: fc578b31b4f8824ad132631f877e8490d7cf902f SHA-256: 8c0069dff77ff1f16864b906c73bc1bca2624292b7d2c9223adb5eab77e781bf

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/free-spins-coins-coin-master-game-hack PDF link annotation
- https://nature-air.com.tw/upload/files/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/robux-download_GM431946152.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/minecraft-free-install_GM479516143.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/get-free-robux-now_GM431946152.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/roblox-redeem-robux_GM431946152.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/coin-master-online-hack_GM406889139.pdfIn PDF document text
- https://nature-air.com.tw/upload/files/coin-master-332-apk-free-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_off00004a8d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A8D	25888 bytes
SHA-256: `e1aac9bd1e0d6588cb5215573b52fa5042e5d7a6ba5a6440a5789cc830099c7d`
`font_01_sfnt_off0000857c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x857C	17884 bytes
SHA-256: `18816d8d761583b578c9833b8849e2eeaed27ef2f16a893d2032c58e3f8148b6`

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