PDF malware analysis — malicious · 68a298e0ffba9e6f

MALICIOUS

PDF

46.2 KB Created: 2021-05-14 21:05:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 31225a7dd371e0afed33453e528ad316 SHA-1: 14ce85f8afedff50632f13dd53da36110ef6ebcb SHA-256: 68a298e0ffba9e6fc97b6cb76aff5972e96ea7b67a4db7bb598c99a3aa604c85

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for linking to a game hack lure, specifically mentioning 'Coin Master Free Coins And Spins App'. The embedded URLs, such as 'https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-app-game-hack', reinforce this lure. While no scripts were explicitly extracted, the PDF format can embed JavaScript, and the overall structure suggests a phishing or scam attempt to trick users into visiting malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9278

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-free-coins-and-spins-app-game-hack PDF link annotation
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/blox-fun-info_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-spin-link_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/girl-roblox-avatar_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/coin-master-100-spin_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b6f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B6F	27192 bytes
SHA-256: `ff24258f689371457392ae5121d577458361a39d5cb3153b5660595aa14ef05c`
`font_01_sfnt_off00008951.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8951	2812 bytes
SHA-256: `fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f`
`font_02_sfnt_off000092f2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92F2	18060 bytes
SHA-256: `f77ee24e01944806ea28e16fd73427a54f7109e241804df06ce657d8c6d11cfb`

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