PDF malware analysis — malicious · 49bd08a2899e6534

MALICIOUS

PDF

42.7 KB Created: 2021-05-19 12:36:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 6c210d018256b78c42a821e168ba2e7e SHA-1: aa8e7eced04a76bd63d79ca013c8c48802284b09 SHA-256: 49bd08a2899e6534fc54df72066da8b148dd0ca0691e8ae9a70867488a6fe92b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a game hack redirector, specifically targeting 'Coin Master' cheats. The document body, though partially corrupted, contains references to game hacks and includes multiple URLs pointing to similar lures. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring users to click on these links, likely to download malware or visit a phishing site.

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/coin-master-cheats-free-spins-game-hack PDF link annotation
- https://www.gvandenakker.nl/images/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/robux_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/minecraft-free-download_GM479516143.pdfIn PDF document text
- https://www.gvandenakker.nl/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/roblox-sexually-abused_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/strucid-aimbot_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-reward-link_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/village-coin_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-coins_GM406889139.pdfIn PDF document text
- https://www.gvandenakker.nl/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.gvandenakker.nl/images/coin-master-game-free-spin-download_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_off00004b99.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B99	25304 bytes
SHA-256: `bc974833689842c93515e65ad431b0d7b3a25fcd66a7e030e5dc23b805b5d0ae`
`font_01_sfnt_off00008571.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8571	18052 bytes
SHA-256: `78e09613e9051ea2c05113a2cb3e2459165660dd7357248de65be6b789990433`

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