PDF malware analysis — malicious · 9295b2b6131fd85a

MALICIOUS

PDF

43.7 KB Created: 2021-05-18 00:31:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: b300b91481c1fd5fd9d2be6857b140cb SHA-1: 6a3cac62c27819dec6557dd6b886fd0d46ce5443 SHA-256: 9295b2b6131fd85a413f85dd91f94fb20dee7377c2da453bd7b29827c235ece1

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 0.9969

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/431946152/how-to-get-free-robux-without-doing-anything-game-hack PDF link annotation
- https://www.baratravelling.com/ckfinder/userfiles/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/rbx-website_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-please_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/is-minecraft-java-free_GM479516143.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-computer-hack_GM406889139.pdfIn PDF document text
- https://www.baratravelling.com/ckfinder/userfiles/files/how-to-get-free-pets-in-adopt-me-roblox_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_off00004afd.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AFD	26516 bytes
SHA-256: `a575ce9862f6bfa2d2b2f218c5688985a1653454362cb3b9fd66421ee2f87bde`
`font_01_sfnt_off00008532.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8532	19400 bytes
SHA-256: `843e7c6de0628ecb74dfde19cdfb212261a67f0d6d996bc16e2547f6c0bce3d3`

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