PDF malware analysis — malicious · d04ce201def31607

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 05:41:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 0e94c08f04eceacad5bac57d83da7229 SHA-1: 607636efff2f1e16d77d5107b3c0c763519a4d3f SHA-256: d04ce201def31607d60ccd0818b82bcb0e60bd5de1beba9890403d9c4751fdae

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which are part of a link farm designed to appear as legitimate download pages for game-related content. The ML classifier strongly indicated maliciousness, and the presence of a 'download button' heuristic further supports a deceptive user interaction. The document body, though partially corrupted, contains references to 'free spins' and game hacks, aligning with a scam or phishing lure.

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/free-spins-on-coin-master-game-hack PDF link annotation
- https://vieclamjapan.com/upload/files/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-free-fire_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/oprewards-robux_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-do-you-get-free-roblox_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_004_off00005153.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5153	25012 bytes
SHA-256: `1ca8aac79131427ab253b0a84df3c121cc6ed47da1023405baa3f2094678e720`
`font_01_sfnt_off00008b1a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B1A	19212 bytes
SHA-256: `44a0d2b3e17c3a1e5ca4e441dbcc3e2cf887787cf2c5987b595b8d8f2b0dcc1b`

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