PDF malware analysis — malicious · 4862c287dbc3471e

MALICIOUS

PDF

43.6 KB Created: 2021-05-14 06:36:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 624236b8aa82319cd74443d00a10bb86 SHA-1: f5add2df8461616da131f52a64bc27886178fd6a SHA-256: 4862c287dbc3471edf4988d059ab269377363801c440de98547bcd1b2422d9d3

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO manipulation tactic. One prominent URL, 'https://netcdn.xyz/app/431946152/how-to-hack-someone's-account-on-roblox-game-hack', indicates a lure related to hacking accounts. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URIs suggest potential for malicious redirection or content delivery.

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-to-hack-someone
- https://www.mrsz.ir/images/coin-master-daily-free-spins-link-2021-today_GM406889139.pdf
- https://www.mrsz.ir/images/500-free-coin-master-spins_GM406889139.pdf
- https://www.mrsz.ir/images/how-to-hack-roblox-jailbreak_GM431946152.pdf
- https://www.mrsz.ir/images/free-coin-master-spins-2021_GM406889139.pdf
- https://www.mrsz.ir/images/coin-master-free-spins-link-today-2021_GM406889139.pdf
- https://www.mrsz.ir/images/how-to-hack-coin-master-with-root_GM406889139.pdf
- https://www.mrsz.ir/images/minecraft-pocket-edition-free-apk_GM479516143.pdf
- https://www.mrsz.ir/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdf
- https://www.mrsz.ir/images/coin-master-hack-without-verification-2021_GM406889139.pdf
- https://www.mrsz.ir/images/free-robux-microsoft_GM431946152.pdf
- https://www.mrsz.ir/images/coin-master-daily-free-spins-link_GM406889139.pdf
- https://www.mrsz.ir/images/toolbox-mod_GM479516143.pdf
- https://www.mrsz.ir/images/script-executor-roblox-free_GM431946152.pdf
- https://www.mrsz.ir/images/coin-master-hack-download-android_GM406889139.pdf
- https://www.mrsz.ir/images/free-google-play-promo-codes-coin-master_GM406889139.pdf
- https://www.mrsz.ir/images/roblox-army-robux_GM431946152.pdf
- https://www.mrsz.ir/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
- https://www.mrsz.ir/images/roblox-no-download-hack_GM431946152.pdf
- https://www.mrsz.ir/images/free-spins-for-coin-master-2021_GM406889139.pdf
- https://www.mrsz.ir/images/free-things-on-roblox_GM431946152.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_off00004cea.bin` `7f187adfa0fb5db6157dd361cbfa0f1540584e005055453d592c0b4cc75964fc`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4CEA	24844 bytes
`font_01_sfnt_off00008611.bin` `995056b981027bfba3f97be2499ebace8b386febdb07856c531761fbe005e83e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8611	18912 bytes

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