Malicious PDF — malware analysis report

Static analysis result for SHA-256 5462b8a5b3802955…

MALICIOUS

PDF

43.1 KB Created: 2020-04-12 12:55:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 73568773f6493c492ec03cb4381615a5 SHA-1: 36fb9f359f1801c3b729cd7de035f67915a9e747 SHA-256: 5462b8a5b3802955e83ee3d4ad9d1a6e4077a6dd53185d518e76963b1f2d0035
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links to other PDF files hosted on various domains, indicative of a link farm or SEO spam campaign. The primary heuristic identified a mass of external PDF links, with the dominant host being moonlightradiance.com. The document body contains a title that appears to be a lure for search engines. No scripts were extracted, and the maliciousness appears to stem from the redirection to external, potentially malicious, content.

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://7thdaughterdesignsus.com/uploads/1/3/0/4/130488294/130488294.html#etica+ambiental+filosofia+pdf
    • http://moonlightradiance.com/uploads/1/3/0/6/130605240/mulikafinepi-pigus-wavevowa-nafule.pdf
    • http://rockofagesbaptistchurch.org/uploads/1/3/0/6/130639729/boxanibute.pdf
    • http://terrenmueller.com/uploads/1/3/0/6/130605072/midebewax-rilasixi.pdf
    • http://noragraceboutique.com/uploads/1/3/1/4/131413718/sinanidatik.pdf
    • http://mandbmulti.com/uploads/1/3/0/6/130639901/luviraginuzedefit.pdf
    • http://afieldsresearch.com/uploads/1/3/1/4/131412426/1981795.pdf
    • http://passport2myheart.com/uploads/1/3/0/6/130621509/2199064.pdf
    • http://uglyhousesforcash.com/uploads/1/3/0/5/130540540/netegosob.pdf
    • http://sync-cars.com/uploads/1/3/1/6/131636562/280eb57a.pdf
    • http://justincohanlaw.com/uploads/1/3/0/6/130639291/6339431.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a56.bin
314068db679986ff259500998e2150a0c7c63ca939822113c88c7c9917bb1e88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A56 8688 bytes
font_01_sfnt_off000089e9.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89E9 16036 bytes

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