PDF malware analysis — malicious · 024201dd7e607a6b

MALICIOUS

PDF

35.8 KB Created: 2021-07-10 00:07:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: cd22f2c2d964fc6f87684f80ae404270 SHA-1: 9f84a1730a77813036d02e7372d34a11551cfe27 SHA-256: 024201dd7e607a6bddca2fbd6e5d24f098378bcba460926a6bbfbbeaa1e63f03

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-daily-free-spins-link-facebook-game-hack PDF link annotation
- https://bookswithapast.com/ckfinder/userfiles/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/r5oblox-how-to-get-robux-useing-cheat-engine_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/wurst-client-18-9_GM479516143.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/how-do-i-delete-roblox-baseplate-with-cheat-engine_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/robloxbux-us-generator_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/roblox-jailbreak-hack-free_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
- https://bookswithapast.com/ckfinder/userfiles/files/coin-master-free-coins-link_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
`stream_002_off000033c2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x33C2	23044 bytes
SHA-256: `07cbd6c8f65a19f4ff738a548c925ec61e3e7476d148985695f3da4279baad13`
`font_01_sfnt_off0000677e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x677E	18924 bytes
SHA-256: `a0d047bda18a8ecd9b1086251fa4bbdb0dcda0080a7233d126ecb60a43623744`

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