PDF malware analysis — malicious · d68d8696c856628e

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 11:41:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: c10107aba9a44325b1777c926ee9a2b4 SHA-1: 81a2de847ba47a4aa2ad5de4258576c0f9c63fb6 SHA-256: d68d8696c856628e9c031cc1b97cf1fcf41df32a9516648cc6df4bec9febc2e1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a game hack lure, specifically mentioning 'robux-online-game-hack'. The document body, though heavily corrupted, contains references to similar game-related terms and URLs. The primary malicious action appears to be redirecting the user to a URL that likely hosts a malicious payload or phishing page.

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/431946152/robux-online-game-hack PDF link annotation
- https://www.orbai.ai/uploaded_files/userfiles/files/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/code-free-robux_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-online-hack_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/minecraft-survival-free_GM479516143.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/roblox-free-wings_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-coinmaster-spins_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/no-scam-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_off00004993.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4993	25580 bytes
SHA-256: `afada0d71db92713449a412f55af71a9ec64cab46e954d99b16f5ce33147d38d`
`font_01_sfnt_off0000845a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x845A	18044 bytes
SHA-256: `613688d39500d5b16bf64409f0aca6fe840d07506161475672c290022fb5aac0`

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