PDF malware analysis — malicious · a0e78a9d6351b0b0

MALICIOUS

PDF

45.0 KB Created: 2021-06-03 20:33:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: a0062424dd46798c843e7007366105c8 SHA-1: 3fa841dde84412cc6918bcc34f6e7aada59d2465 SHA-256: a0e78a9d6351b0b0c222bf769002bec95f2b67eb6c407e0a0f1da1ce7fe5a326

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links to external websites, many of which are structured as SEO-optimized "link farms" related to game hacks. The ML classifier strongly flagged this PDF as malicious. The presence of a "download button" heuristic further suggests a deceptive user interaction is intended. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a high likelihood of redirecting users to malicious sites for phishing or malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.online/app/406889139/how-to-hack-coins-in-mcpe-master-game-hack PDF link annotation
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/free-robux-website_GM431946152.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.denpasarinstitute.com/new/public/ckfinder/userfiles/files/how-to-hack-m-coins-mcpe-master_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_004_off000052b4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x52B4	25504 bytes
SHA-256: `72770dee539facdd17abef7df390070285a99c64b943104ea2acac390c11177c`
`font_01_sfnt_off00008e13.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E13	18056 bytes
SHA-256: `ea749421c9763e897f0775a2fca8a7e481d8ca205e309ab3fda826117ef8ab8f`

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