Malicious PDF — malware analysis report

Static analysis result for SHA-256 d10da3031145f1cc…

MALICIOUS

PDF

41.0 KB Created: 2020-04-06 09:17:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 61d74099ae6c8c7f902b2e5b72c1c5eb SHA-1: 7a1d44948d2831a2504e50cb1055ad925094e7f8 SHA-256: d10da3031145f1cc690acbc9a169ec1425f2252c03488bf4be31e47c93f2696f
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are hosted on unrelated domains and appear to be part of a link farm. The document body, though malformed, contains text related to medical procedures, likely intended as a lure. The primary heuristic indicates a 'PDF_SEO_LINK_FARM', suggesting the document's purpose is to redirect traffic to numerous external sites. No scripts were extracted from this sample.

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://deborahsnider.com/uploads/1/3/0/6/130639506/130639506.html#como+hacer+un+electrocardiograma+enfermera
    • http://edwardfanphotos.com/uploads/1/3/1/0/131070078/c558df7f0b95e.pdf
    • http://nationalsolargroup.net/uploads/1/3/1/0/131071117/sogepi.pdf
    • http://hellolovedoula.com/uploads/1/3/0/5/130544243/8220825.pdf
    • http://junctionhall.com/uploads/1/3/0/7/130775850/4640142.pdf
    • http://hrmhack.org/uploads/1/3/1/4/131453648/e1092092cf14a5.pdf
    • http://cas9i.com/uploads/1/3/0/5/130541351/zopim.pdf
    • http://greeneaglellc.com/uploads/1/3/0/3/130323592/nikoxegetesikaji.pdf
    • http://woodlandtitleut.com/uploads/1/3/0/9/130969166/308540.pdf
    • http://therapiness.com/uploads/1/3/0/2/130291545/699940.pdf
    • http://pawview.com/uploads/1/3/0/8/130873794/ziwevuxopaga-nonuxugutozomu.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007627.bin
c7d573f9ce7dff8920c3f3a0ea5605d7a33d670586dbc1105f7d81fe50a30212		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7627 8536 bytes

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