PDF malware analysis — malicious · cafc76c6aa679081

MALICIOUS

PDF

44.3 KB Created: 2021-05-12 23:52:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 99c0d395c9cf559b8b453800e9e11dd4 SHA-1: 9b49b6eb6eef16a01bbd06fcb847c09b6403b5ca SHA-256: cafc76c6aa6790817aaf7aa9468f492735ca0bd1b8d22d784b343d7a7ba44454

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free Robux, directing users to a malicious URL. The embedded link likely leads to a phishing or malware download site. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristics indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9648

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/how-to-get-free-robux-on-pc-game-hack PDF link annotation
- https://biospray-online.com/ckfinder/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/ios-coin-master-hack_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/free-robux-website_GM431946152.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/minecraft-client_GM479516143.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/rewardex-robux_GM431946152.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/buy-robux-free_GM431946152.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
- https://biospray-online.com/ckfinder/userfiles/files/get-robux-today_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_off000048b0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48B0	24984 bytes
SHA-256: `00bc9c24f307e63977ce5862f776990ba60e04adf685aecba66365844034436a`
`font_01_sfnt_off00008047.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8047	2888 bytes
SHA-256: `dcdd98ee8e25436a83587ccb4027347dd2c3fcec95f3413942edd4086125bcca`
`font_02_sfnt_off00008a1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A1B	18436 bytes
SHA-256: `3da4067756d8a9659bbf1d91e8f5987ff560a340f178cc4f41ff3c3676747205`

Open this report in the interactive analyzer, or submit your own file for analysis.