PDF malware analysis — malicious · 1389da3ab652b599

MALICIOUS

PDF

46.3 KB Created: 2021-05-10 21:29:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 3098a998b7d1ece125ed232f81265a6d SHA-1: 2e9eade351e5fa90e11820bae2cea75d09b08405 SHA-256: 1389da3ab652b599ea5bb88c1c340fdbaf55b565a4fb3f2048ade3e882c6077b

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for a 'Roblox Account Hacker Tool' and a fake CAPTCHA, designed to trick users into clicking malicious links. The primary link identified is https://netcdn.xyz/app/431946152/roblox-account-hacker-tool-game-hack, which likely leads to a malicious website or a payload download. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit user interest in game hacks to facilitate malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/431946152/roblox-account-hacker-tool-game-hack PDF link annotation
- http://www.area-tlc.com/public/ckfinder/userfiles/files/robux-earning-websites_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/free-spin-link_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/free-robux-live_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/roblox-its-free_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/how-to-make-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/robux-without-verification_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/games-that-give-free-robux_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_off00004d69.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D69	29572 bytes
SHA-256: `9d68618d25fc285b2b8889b8889ce735d0d621d33dbce7d731ce55d3ac0e5aa5`
`font_01_sfnt_off0000922d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x922D	18428 bytes
SHA-256: `be2d3c57b171ea36946098a74c5bbef6bd2a12406cdf89d7d5ae97ba7b22bd3c`

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