Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d29a212ccddecd0…

MALICIOUS

PDF

44.6 KB Created: 2020-04-06 03:02:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 953ff2c9c3095928c7d1f11c38ac1cc5 SHA-1: 8b00edd9e4099e14665e4e15d1e0b0c778bc3374 SHA-256: 1d29a212ccddecd00820201f40265a814fe150973bd9a6c74a60f2e7172b2595
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF file contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. No scripts were extracted, and the document body is largely unreadable, making it difficult to determine the exact user-facing lure. The primary attack pattern observed is the mass distribution of external links.

Heuristics 3

  • 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.
  • 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 http://michaelwellsart.com/uploads/1/3/0/5/130541662/130541662.html#concepto+de+agilidad+en+educacion+fisica+wikipedia
    • http://sumaiyakhalifa.net/uploads/1/3/0/7/130775252/jisapugi-roledubot.pdf
    • http://contentmentlife.com/uploads/1/3/0/9/130969238/523269.pdf
    • http://4peggy.com/uploads/1/3/0/7/130775865/0ef1b5bdd.pdf
    • http://thehealthynibbler.com/uploads/1/3/1/4/131409616/futopozejonu-tagiroxer-suriko-fujuz.pdf
    • http://kwanzaaklaus.net/uploads/1/3/0/7/130775197/4872191.pdf
    • http://robbiebaldwin.com/uploads/1/3/0/6/130604456/mokagetire_gukoz_zuwewowux.pdf
    • http://restaurantekarkata.es/uploads/1/3/0/8/130874164/b7f4705f82.pdf
    • http://kapasalonfabre.com/uploads/1/3/0/8/130814830/xurixa-korixinuf-fasijo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ef.bin
127cef394ff8da0db6ae7f664cc58c3bea2c0c28b01c2cd8c0213ca2475db115		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65EF 8392 bytes
font_01_sfnt_off000084c4.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84C4 2652 bytes
font_02_sfnt_off00008e2b.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E2B 16036 bytes

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