PDF malware analysis — malicious · 2d28f15c05540700

MALICIOUS

PDF

41.3 KB Created: 2021-05-12 10:39:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: ad7c12cc98b568bb8e97956846dffe42 SHA-1: 5a3c7d10534fbd9c9b5eaa5f2bc3ab1f4791d55e SHA-256: 2d28f15c05540700d2aa4143ec20780addf15d5dfe1d7028af479824f679ce3b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/coinmaster-hack-game-hack PDF link annotation
- https://indo-parabola.com/ckfinder/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/roblox-images_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-offline-hack_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/facebook-coin-master_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-fun-hack_GM406889139.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/javascript-free-robux_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/free-robux-giveaway-live_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_off00004881.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4881	24232 bytes
SHA-256: `5e2633b20d5846422d1b8ce1c2e8bfc22e21801941b13dcf1604a54dcf944d15`
`font_01_sfnt_off00007ffd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FFD	17976 bytes
SHA-256: `d0b6a121b0ad4618c251f37f895f744a254c5dff228d95ccb86b2837b7d4678c`

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