PDF malware analysis — malicious · fbdaa11d3490c169

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 11:43:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 4b4e450b7f46b627254a74d24ab8330c SHA-1: d9241fe8b62928dea1db2d3d533763dd74139d6a SHA-256: fbdaa11d3490c1699617c8701f2adda924bb44edc17b51f74d4b6e9d39796d30

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-online-game-hack PDF link annotation
- https://sponajaib.com/ckfinder/userfiles/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/olais-only-robux-hack_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/free-robux-generator-no-verificationor-survey_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/hack-para-ayudar-a-la-gente-roblox_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/roblox-com-free-for-mobile_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/roblox-robux-hack-game_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/robux-free-com_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/hack-coin-master-1_GM406889139.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/roblox-money-hack-jailbreak-download_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
- https://sponajaib.com/ckfinder/userfiles/files/free-minecraft-maps_GM479516143.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_off000030ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30AB	22488 bytes
SHA-256: `67f7e64bc5baf37d719e41eed2e6f8240188431e2e355967d64e6f2faeb2fe84`
`font_01_sfnt_off00006285.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6285	17908 bytes
SHA-256: `af885c1e563a73b21aeaf221e479e615e354be997988ec2a0c0a0c1074b1e5d5`

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