PDF malware analysis — malicious · 92ff44d50928efbd

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 06:10:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 8d94f4262afea6fbbddcfa1afb4daddf SHA-1: ccb69b65b897daba5a3714ee3994fa624b08c3c8 SHA-256: 92ff44d50928efbdbe38f5baef62a44818de70d56bb716267092d7f6147bfc72

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.tw/app/479516143/how-to-get-minecraft-realms-for-free-game-hack PDF link annotation
- https://www.orbai.ai/uploaded_files/userfiles/files/cheats-for-mega-gun-obby-roblox_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-hack-roblox-exploit_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/corn-master_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-do-you-get-free-robux-easily_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-robux-in-2-minutes_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/roblox-hack-download-mega_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/roblox-parkour-shift-hack_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-ad_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/cracked-free-roblox-exploit_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-roblox-gift-cards-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/darkblox-hacks-roblox_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/robux-bot-hack_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/websites-for-robux_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-robux-yummers_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/spin-free-coin-master_GM406889139.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_off00003208.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3208	22780 bytes
SHA-256: `e977448697dab04364e7879c637b37bc606ab3b8ae44e5f68a3d87a56c8dd1c2`
`font_01_sfnt_off000064b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64B2	18496 bytes
SHA-256: `206556e0041cad10c7ca9339ae93eddcae4d18c9e91f782ddd10985e6c899e97`

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