PDF malware analysis — malicious · a82523307e127f1e

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 00:13:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 87b029d66b23c2b2d076d4cf983ab0e9 SHA-1: ec3a324539b6dddd5a02398a4f637fb6e0c839cf SHA-256: a82523307e127f1ef9f3304430fbb02f56ec1e747038da950ae91c45eeb9bfcc

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 0.9971

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/406889139/coin-master-bonus-game-hack PDF link annotation
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/mcpe-download_GM479516143.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-hack-355_GM406889139.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-game_GM406889139.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/roblox-its-free_GM431946152.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/roblox-hack-me_GM431946152.pdfIn PDF document text
- https://www.pendaftarantransvision.com/ckfinder/userfiles/files/roblox-free-robux-generator_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
`stream_003_off00004a52.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A52	25864 bytes
SHA-256: `f81aec02641b9cf432ffb00bb0565475e1a67779c61b92841b43173e11ffbad9`
`font_01_sfnt_off00008521.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8521	17900 bytes
SHA-256: `d4cb4f8b582e53d36decfc4acea5f7bd3ab490a7e6a584b333508c86d745803e`

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