Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f27b1347c8f38d…

MALICIOUS

PDF

42.4 KB Created: 2020-04-06 04:50:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b09ec6a5f9bc2748bbc2563d359cc0db SHA-1: 94ccdae9adfff4545624c8466a0f385a34494e96 SHA-256: 47f27b1347c8f38dfca4a1bf806228ff773a7f7bbe212794bd6d1d1f28dee49c
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to similarly structured URLs on unrelated domains, indicating a link farm or SEO spam tactic. The document body, though partially corrupted, contains the phrase 'Tipos de niif en honduras' and references 'wkhtmltopdf', suggesting a lure to a website related to accounting standards in Honduras. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mgfundraiser.com/uploads/1/3/0/5/130588266/130588266.html#tipos+de+niif+en+honduras
    • http://seasidescribe.com/uploads/1/3/0/3/130379133/48bf6.pdf
    • http://thespapalmcove.com/uploads/1/3/0/6/130620781/5fda6f046.pdf
    • http://mandalaaccessorize.com/uploads/1/3/0/4/130476611/e27e605f.pdf
    • http://bariatricsinc.com/uploads/1/3/0/3/130379864/1457455.pdf
    • http://crockpotblvdllc.shop/uploads/1/3/1/1/131163690/13de033b7d45.pdf
    • http://zombiecloths.com/uploads/1/3/0/4/130488087/wetijorezevujiduvido.pdf
    • http://osiwv.com/uploads/1/3/0/7/130776420/554142.pdf
    • http://ohiobusinessadvocates.com/uploads/1/3/0/6/130620581/rifuvizumib_jipalolutukiv_nonakodebaduma.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_off00006370.bin
138d97bd7b6ea02e5e4b0fe30fd0b8b81f1d76a7e98029bd8397081b1c5dccb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6370 9584 bytes
font_01_sfnt_off000085c5.bin
0f23141ba94d37b49c53016ac63a9b008a6ac8e4c4656a8d80e6725f77750189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85C5 16140 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.