PDF malware analysis — malicious · 8e69c5730f6bcf4f

MALICIOUS

PDF

35.1 KB Created: 2021-07-03 15:41:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: f8414ac9549980728f254676ef359f79 SHA-1: a03a1fe22cb93c359bcf07e409421fd8d61c9d1d SHA-256: 8e69c5730f6bcf4f55d47752ce2d4a4aca966103e36d4bf1d5b53dc01e5c7e5e

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/406889139/coin-master-free-spins-app-game-hack PDF link annotation
- https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-get-free-robux-no-videos_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-get-free-shirts-and-pants-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-use-wurst_GM479516143.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/free-robux-safe_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/free-promocodes-that-give-you-robux_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-change-the-script-on-roblox-2021-free-robux_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-get-free-robux-on-windows-10-2021_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/free-robux-greenlegocats123_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/gameblock-free-robux_GM431946152.pdfIn PDF document text
- https://www.fotokad.ae/uploaded_files/userfiles/files/where-can-i-get-free-coins-for-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_off00003508.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3508	22536 bytes
SHA-256: `8183669eb09d524beb8de9e43441d9d90daf98b41cfed39bd8c570af2b3e8ea3`
`font_01_sfnt_off00006715.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6715	18176 bytes
SHA-256: `4f2c7f50c50d911764fc5880fa9a71240a98bde4d6a03cad0f4e23413d6df79f`

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