PDF malware analysis — malicious · 5421448d8b2a1a79

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 05:51:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 00270bf8d07d808de638cc534a3a7aef SHA-1: 917073ad0bbf53c186218e8bd986e2fe650f1b89 SHA-256: 5421448d8b2a1a79576135576506f5d251f4e5b867f8e5daf70b9418f71dc587

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for downloading a game, with a prominent link to a suspicious URL. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a link farm or SEO spamming technique. The ML_NYX_PDF_MALICIOUS classifier strongly suggests malicious intent.

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/479516143/minecraft-1.14-4-download-free-game-hack
- https://www.stadtbesichtigungen.de/images/coin-master-free-spins-daily-1-ga_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/how-to-get-free-outfits-on-roblox_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/need-free-spins-for-coin-master_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-email-rewards-link_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/free-old-roblox-accounts_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-hack-without-root_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-free-spins-link-app-download_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/how-to-earn-free-spins-coin-master_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/how-to-get-robux-for-free-2021_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/free-coins_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/roblox-robux-codes-2021_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/free-coin-master-spins-for-today_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-hack-app-2021-download_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-hack-2021_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/bloxpink-free-robux_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/500-free-spins-coin-master_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/minecraft-mod-menu_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/microsoft-robux_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/free-spins-coin-master-2021_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-free-spin-and-coin_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_off00004932.bin` `36326736aec1ad84bffd8a311e7e98b4376fcfdda0ff7e43433d1bbb4286c929`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4932	25508 bytes
`font_01_sfnt_off0000834f.bin` `401e73119c8810f8f819670611c256b8d42bff04f696ede40330d20cb64494a8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x834F	18524 bytes

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