PDF malware analysis — malicious · a1a6f24a1b6ac03a

MALICIOUS

PDF

44.0 KB Created: 2021-05-14 14:01:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: cf06beda402ddad91cfad1fcb5356900 SHA-1: d2f8f0943c0a12b3a40516551a0632cfa2ab820f SHA-256: a1a6f24a1b6ac03a8885b98b350cf5617f55d2dd11a85b7fe02debf26a23cefa

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a document body that explicitly mentions 'free Robux' and provides a link to a website. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a malicious intent to drive traffic to potentially harmful sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/how-do-you-get-free-robux-without-doing-anything-game-hack
- http://columbuscigar.com/images/real-free-robux-generator_GM431946152.pdf
- http://columbuscigar.com/images/free-robux-generator-no-verification-2021_GM431946152.pdf
- http://columbuscigar.com/images/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdf
- http://columbuscigar.com/images/free-coins-and-free-spins-coin-master-2021_GM406889139.pdf
- http://columbuscigar.com/images/archery-master-3d-coins-hack_GM406889139.pdf
- http://columbuscigar.com/images/coin-master-tricks_GM406889139.pdf
- http://columbuscigar.com/images/is-minecraft-free-on-xbox-one_GM479516143.pdf
- http://columbuscigar.com/images/free-robux-android_GM431946152.pdf
- http://columbuscigar.com/images/free-spins-link-in-coin-master-2021_GM406889139.pdf
- http://columbuscigar.com/images/free-roblox-accounts-with-robux_GM431946152.pdf
- http://columbuscigar.com/images/coin-master-free-coins-and-spins-2021_GM406889139.pdf
- http://columbuscigar.com/images/coin-master-free-cards-link_GM406889139.pdf
- http://columbuscigar.com/images/coin-master-hack-apk-latest-version-2021_GM406889139.pdf
- http://columbuscigar.com/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
- http://columbuscigar.com/images/free-robux-no-verification-or-survey-2021_GM431946152.pdf
- http://columbuscigar.com/images/roblox-rape_GM431946152.pdf
- http://columbuscigar.com/images/is-roblox-studio-free_GM431946152.pdf
- http://columbuscigar.com/images/coin-master-daily-free-spin-and-coin_GM406889139.pdf
- http://columbuscigar.com/images/free-robux-com-2021_GM431946152.pdf
- http://columbuscigar.com/images/free-minecraft-account-generator_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004a16.bin` `d500a2609843e3d7bed857f345569f2707d7a7549a7821356e6adfe104a50a19`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A16	26820 bytes
`font_01_sfnt_off00008608.bin` `f288fbb1ab92d6f8be6652009a81e99b9e02fb437604b8cefd24a0b2528ef73f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8608	19564 bytes

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