PDF malware analysis — malicious · 86cca72a604cbeea

MALICIOUS

PDF

45.6 KB Created: 2021-05-16 09:10:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 8913eb6864d56b0c3715f9887f52b6d0 SHA-1: 0b2d1ccd336f84d976ec4d7ff3062917bc7d30e3 SHA-256: 86cca72a604cbeea79e109c4266a6e0e48cfecb5d71add11539a9fd4f7066671

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links to external websites, many of which are structured as SEO link farms for game-related cheats and hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure reinforces the malicious intent. The primary goal appears to be directing users to download potentially harmful files from the listed URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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.xyz/app/431946152/robuxmatch.con-game-hack
- https://de-licht.com/image/data/files/roblox-free-robux-no-verification_GM431946152.pdf
- https://de-licht.com/image/data/files/who-to-get-free-robux_GM431946152.pdf
- https://de-licht.com/image/data/files/minecraft-mobile-free_GM479516143.pdf
- https://de-licht.com/image/data/files/free-robux-without-human-verification_GM431946152.pdf
- https://de-licht.com/image/data/files/hack-coin-master-without-verification_GM406889139.pdf
- https://de-licht.com/image/data/files/coin-master-hack-no-human-verification_GM406889139.pdf
- https://de-licht.com/image/data/files/free-roblox-dominus_GM431946152.pdf
- https://de-licht.com/image/data/files/rbx-free-robux_GM431946152.pdf
- https://de-licht.com/image/data/files/how-to-hack-someones-account-on-roblox_GM431946152.pdf
- https://de-licht.com/image/data/files/how-to-get-free-robux-inspect_GM431946152.pdf
- https://de-licht.com/image/data/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdf
- https://de-licht.com/image/data/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdf
- https://de-licht.com/image/data/files/free-robux-codes-no-verification-2021_GM431946152.pdf
- https://de-licht.com/image/data/files/coin-master-hack-activegamer_GM406889139.pdf
- https://de-licht.com/image/data/files/free-robux-net_GM431946152.pdf
- https://de-licht.com/image/data/files/free-robux-glitch-2021_GM431946152.pdf
- https://de-licht.com/image/data/files/coin-master-hack-spin-generator-tool_GM406889139.pdf
- https://de-licht.com/image/data/files/free-roblox-clothes-girl_GM431946152.pdf
- https://de-licht.com/image/data/files/coin-master-hack-2021-apk-download_GM406889139.pdf
- https://de-licht.com/image/data/files/http-coin-master-hack-club_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000047f0.bin` `567e5b77250169362950210d269d1a6ce11cbd71f0e7ab72c7349f829f848e59`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x47F0	25304 bytes
`font_01_sfnt_off000081ce.bin` `9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81CE	5596 bytes
`font_02_sfnt_off00008e75.bin` `b3ad435d94df059fa4f5f4039152be4ff635e0c8c599297d8dd6c4123da1a60e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E75	18672 bytes

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