PDF malware analysis — malicious · 0eb087c01688c58f

MALICIOUS

PDF

41.7 KB Created: 2021-05-19 22:22:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: 25e7839c97dbc70116ece4692233efea SHA-1: 7210d6d52648be53ca908539455bc5758783e73b SHA-256: 0eb087c01688c58f408957515f6c14b5ca0ce94835883700479617c118912cf1

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and potentially unwanted content, disguised as 'game hacks' and 'free spins'. The primary malicious link identified is https://netcdn.xyz/app/406889139/coin-master-hack-free-spins-game-hack. The document's structure and embedded links strongly suggest it is designed to lure users into clicking these malicious URLs, likely leading to further malware downloads or phishing attempts.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-free-spins-game-hack In PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/coin-master-free-online-game_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
- https://www.tvoyo.tv/ckfinder/userfiles/files/coin-master-daily-free-spins-link-today-facebook_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_off00004add.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4ADD	24108 bytes
SHA-256: `9c1eb59ac76dcdadfb0e854f01f6c6f035546ca2871d034729a20e4f87bf034d`
`font_01_sfnt_off00008174.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8174	18056 bytes
SHA-256: `12d79a7ddbb75c7a0854102822057d5441bee2ca4a20c79f8211a3d0b9a1f375`

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