PDF malware analysis — malicious · d5ae30b29f502564

MALICIOUS

PDF

43.9 KB Created: 2021-05-12 03:33:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 708a3ac1567c965311c26fb34f7928ca SHA-1: cbd793536845dc9c09425db3e947c479c387e54d SHA-256: d5ae30b29f50256492b32bc1575e6ece2b457b55d7e9c978c06bbe1ece754952

122 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. It uses a fake-CAPTCHA lure. 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 0.9969

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/how-do-i-get-robux-game-hack PDF link annotation
- http://www.africanearthgroup.com/uploads/files/files/coin-master-game-hack-kaise-kare_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/picture-roblox_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-facebook_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/javascript-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_off00004b09.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B09	26848 bytes
SHA-256: `92dd83f198ee0e2fc44d994f14268dc5b97b488c138ebc2957ac2ef7dac07a1b`
`font_01_sfnt_off00008941.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8941	18284 bytes
SHA-256: `76696481b4f85a4b134e50273d4f72d60bf885136cdb061a204ba21e520483fb`

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