PDF malware analysis — malicious · 21509ab9812bb1a4

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 06:28:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 2243679f37c7ae25a5c554d7c451f497 SHA-1: 8f5624febb227da6eb370b44d8cbe7def7d9a998 SHA-256: 21509ab9812bb1a4c5413b6687c0802f7ef85d2ddbeb15321013936b5a45a2e4

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are structured as SEO-optimized PDF gateways for game cheats and free items. The ML classifier strongly indicated maliciousness, and the presence of a call-to-action phrase further supports a phishing or scam attempt. The document likely serves as a lure to drive users to malicious content or downloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/play-roblox-free-online-game-hack
- http://kita-sunshine.de/images/coin-master-free-link-today_GM406889139.pdf
- http://kita-sunshine.de/images/coin-master-free-spins-no-verification_GM406889139.pdf
- http://kita-sunshine.de/images/coin-master-free-spins-link-fb_GM406889139.pdf
- http://kita-sunshine.de/images/coin-master-free-spins-and-coins-for-today_GM406889139.pdf
- http://kita-sunshine.de/images/coin-master-free-spins-and-chips_GM406889139.pdf
- http://kita-sunshine.de/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdf
- http://kita-sunshine.de/images/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdf
- http://kita-sunshine.de/images/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdf
- http://kita-sunshine.de/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
- http://kita-sunshine.de/images/cpbildco-robux_GM431946152.pdf
- http://kita-sunshine.de/images/hack-coin-master-apk-download_GM406889139.pdf
- http://kita-sunshine.de/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdf
- http://kita-sunshine.de/images/robux-hack-no-verification_GM431946152.pdf
- http://kita-sunshine.de/images/coin-master-free-spins-link-app-download_GM406889139.pdf
- http://kita-sunshine.de/images/free-robux-no-apps_GM431946152.pdf
- http://kita-sunshine.de/images/offers-to-get-free-spins-in-coin-master_GM406889139.pdf
- http://kita-sunshine.de/images/easy-coin-master-hack-without-verification_GM406889139.pdf
- http://kita-sunshine.de/images/how-to-hack-to-get-robux_GM431946152.pdf
- http://kita-sunshine.de/images/free-robux-generator-2021_GM431946152.pdf
- http://kita-sunshine.de/images/free-coin-master-spins-2021_GM406889139.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_off0000496d.bin` `ea48264c23b122b099e9e5868a580146b286b90b154b80b8ca45232561d5f46a`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x496D	25032 bytes
`font_01_sfnt_off00008343.bin` `0face4c994977258c5b75d4e8d8705768a4ec09c316ae5d82e3d2938a44d0e6e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8343	18628 bytes

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