PDF malware analysis — malicious · 5e55025f41970277

MALICIOUS

PDF

46.6 KB Created: 2021-06-11 08:26:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 65ebaa18a5a54706ac0a69ebb169c052 SHA-1: dc349482e68a99e69d82b9f3a38780a999609fda SHA-256: 5e55025f4197027753377c4018ec5f9f33ed473783a24caecd99216a63fe1dff

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 0.9832

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.tw/app/431946152/how-to-speed-hack-in-swordburst-2-in-roblox-2021-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/coin-master-free-link_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-hxh-id-cheat_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-site_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/arcane-legacy-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/best-tricks-co-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/are-any-of-the-free-robux-things-legit_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/freecoins_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-no-verification-2021_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
`font_00_sfnt_off0000510e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x510E	28264 bytes
SHA-256: `17825217579ca2351f0394f8c08d72c9a6e3448153f0dfa524b82c0e8632c7c8`
`font_01_sfnt_off0000903c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x903C	19344 bytes
SHA-256: `ab5eaa67f97983f38a6604cfdb34ba233b68514824808e32ecffe587dcd5a1cd`

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