PDF malware analysis — malicious · e2e0d027ed28ada4

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 16:46:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 7f3fbc64ed5464ce0d6581978d2e057d SHA-1: 364e7c2419b6ea16c1b61f2d5b18f3267d7cf80c SHA-256: e2e0d027ed28ada4564ba387599272bce8d569dd056d367d3a349b6a07814cda

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document exhibits characteristics of a malicious lure, as indicated by the ML classifier and the presence of a large number of external links, many of which are SEO-optimized and point to game-related hacks and cheats. The document body contains a primary URL, http://netcdn.co/app/406889139/coin-master-free-link-blogspot-game-hack, which likely serves as a gateway to further malicious content or downloads. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests a deliberate attempt to create a link farm for deceptive purposes.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/406889139/coin-master-free-link-blogspot-game-hack PDF link annotation
- https://www.hearcolors.com.mx/img/blog/files/free-pink-hair-in-roblox_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-veil-exploit-free-download_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-coin-master-gold-cards_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/minecraft-client_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-coinmaster-spins_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-link-today_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
`font_00_sfnt_off00003008.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3008	22276 bytes
SHA-256: `ebd73aa184600658daca1577526dda180316e112f2cfee06d76e8dd28a5f0a75`
`font_01_sfnt_off00006187.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6187	18632 bytes
SHA-256: `d0d574b1662071f3403a16b1a6302b8c72ae4679adcfbefd57853cfc863fd1c5`

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