PDF malware analysis — malicious · c6b27ac0ea930daf

MALICIOUS

PDF

46.1 KB Created: 2021-05-11 02:06:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 74a1cf271a93792a4d874cb1a1e97982 SHA-1: d888b4adaacb6372282bb8a8013634798c8da68d SHA-256: c6b27ac0ea930dafece176f85cf52a822fcf69d84d39cbc0e49ab84678391212

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 0.9432

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/free-roblox-money-game-hack PDF link annotation
- https://www.wearmyspex.com/uploaded_files/userfiles/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-level-4_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/get-roebucks-com_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-cheats-free_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-robux-no-download_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-roblox-account-generator_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b42.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B42	26752 bytes
SHA-256: `935da7a1bcc6e3188e095d6ed6bac4cfe366c7322d2665f6f42ca8dd1a4928ad`
`font_01_sfnt_off00008805.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8805	2824 bytes
SHA-256: `94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4`
`font_02_sfnt_off000091b4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91B4	18324 bytes
SHA-256: `592c86f68d7cfce1f91e7ace661462f05e7807c87c96d21e42ea748452481f78`

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