PDF malware analysis — malicious · 0cd233166f90a342

MALICIOUS

PDF

40.9 KB Created: 2021-04-22 21:28:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12

MD5: e1c38a7b0bc1573586887386c381e022 SHA-1: 73624112ecb0b643922760503888f96738139dbd SHA-256: 0cd233166f90a342b31a355844da4b5b05448a47e85ebcb2bec97d4671229626

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and a lure related to game hacks and cheat codes, specifically for Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and 'SE_BROWSER_INSTALL_LURE' indicate that the document is designed to trick users into downloading or installing something potentially malicious by promising game-related benefits. The embedded URLs point to external sites that likely host the malicious payload or further phishing content.

Machine Learning

Nyx PDF Classifier malicious score 0.9941

Heuristics 5

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE

Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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://netsecure.pro/app/431946152/roblox-advanced-warfare-tycoon-cheat-codes-game-hack PDF link annotation
- https://itv-grabungen.de/images/free-free-roblox.pdfIn PDF document text
- https://itv-grabungen.de/images/hack-apps-for-roblox-video.pdfIn PDF document text
- https://itv-grabungen.de/images/easy-robux-today-hack-no-human-verification.pdfIn PDF document text
- https://itv-grabungen.de/images/pastebin-roblox-account-hack.pdfIn PDF document text
- https://itv-grabungen.de/images/how-to-get-free-robux-on-a-phone-2021.pdfIn PDF document text
- https://itv-grabungen.de/images/roblox-free-d.pdfIn PDF document text
- https://itv-grabungen.de/images/how-to-get-free-gamepasses-on-roblox-2021-october.pdfIn PDF document text
- https://itv-grabungen.de/images/9-legit-ways-to-get-free-robux.pdfIn PDF document text
- https://itv-grabungen.de/images/critical-strike-hack-roblox.pdfIn PDF document text
- https://itv-grabungen.de/images/titan-simulator-roblox-hack.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_off0000416d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x416D	25692 bytes
SHA-256: `b685b0a4eb281b75bccf2a43b159b64359d5f84615dcfb4cc2f3520eddc8e759`
`font_01_sfnt_off00007bb3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BB3	18948 bytes
SHA-256: `c4358acaaadf2f2adc55a9aad2e73fe84b93e6b16720c0cabb507bc9092d74df`

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