PDF malware analysis — malicious · 1e70affe9d2060a9

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 14:51:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: 535014b5495b98dcb1daab55c1d80a16 SHA-1: b399e3edf3fa3c188c36250f621b94b3dbbfcc8b SHA-256: 1e70affe9d2060a9480f797de0d8c1e76d8bed5c84ed1b41946b715bd0a1f313

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts multiple other PDFs with similar deceptive content. The document's structure and embedded URLs strongly indicate a phishing or scam campaign designed to lead users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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 http://netcdn.tw/app/406889139/hack-coin-master-game-apk-download-game-hack In PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-roblox-group-generator_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/cheat-engine-roblox-tycoon_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-on-robux-store_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/get-free-robux-on-ipad-2021_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-scripts-roblox_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free4mobile-info-robux-hack_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-coin-master-account_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/actual-free-robux_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-videos_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
`font_00_sfnt_off00003114.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3114	22868 bytes
SHA-256: `f4c966b34f4c9cf433e7ce4f3d04d4542f635f524c962de95d4bfa6eb33e9dd9`
`font_01_sfnt_off0000646b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x646B	19020 bytes
SHA-256: `44af2786720a0a2ae12260f8c83a457bff635c12deb4555913cd7afcce07352d`

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