PDF malware analysis — malicious · cae68c2c6c2cdd05

MALICIOUS

PDF

34.5 KB Created: 2021-07-02 08:29:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 03b53abb7b23bf0d00747f661dfeea12 SHA-1: 103029ec2f1bf36e9b90e6de107d5508c6db7762 SHA-256: cae68c2c6c2cdd0529e48fc690e0992a62e6e006060b4d154a2c20fed499d5e2

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

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 0.9980

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 http://netcdn.co/app/431946152/free-robux-no-human-verification-or-scams-game-hack PDF link annotation
- https://www.cow-style.com.tw/upload/files/anti-speed-hack-script-undetected-roblox_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/roblox-slx-free_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/non-blocked-cheat-engine-roblox_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/free-robux-pro_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/roblox-weapon-simolator-hack_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/how-do-you-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/coin-master-hack-download_GM406889139.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/server-with-no-anti-cheat-roblox_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/free-robux-just-click_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/roblox-free-outfit-ideas_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.cow-style.com.tw/upload/files/how-to-hack-into-someones-roblox-account_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
`font_00_sfnt_off00002fab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FAB	22100 bytes
SHA-256: `77c65618014d6a6f4209797dec0c6e0a223da1431f83d51c374a622088c8ae1d`
`font_01_sfnt_off000060d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60D3	19336 bytes
SHA-256: `e83ed0375efda7315602f0baf96ea1b8275a01c3f46d15954de2253156da7a8e`

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