Malicious PDF — malware analysis report

Static analysis result for SHA-256 20c186d36c2e24f3…

MALICIOUS

PDF

35.3 KB Created: 2020-03-08 02:41:11 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5f66309caff38a1b399672f0ee24d51f SHA-1: 5cbea49bb61d0e77f9e69da5602d2a092ce8ea7c SHA-256: 20c186d36c2e24f31a9fde5c6c59efbcdb10fc2cc4aa6593102f42d40b93f5c6
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a URL that is also listed among the extracted URLs. This suggests the primary function of this PDF is to act as a gateway to a network of other PDF files, likely for SEO spam or to distribute further malicious content. 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://host10.pleasingfood.com/uploads/1/3/0/8/130813988/130813988.html#generalized+tonic+clonic+seizures+video
    • http://roryward.roryvincent.com/uploads/1/3/0/5/130543667/b5defd06.pdf
    • http://bloomsbyscarletevents.com/uploads/1/3/0/6/130639114/jifopazodixenutaweb.pdf
    • http://nsanegriplegendcarscom.com/uploads/1/3/0/5/130550749/8838183.pdf
    • http://www.empowerkidsinc.com/uploads/1/3/0/5/130588344/8491627.pdf
    • http://www.alphadetailingsl.com/uploads/1/3/0/6/130620669/8452224.pdf
    • http://6u2ct6.bdgct.com/uploads/1/3/0/2/130270991/2e6bbc9f.pdf
    • http://hostmaster.affinitynutrition.co.uk/uploads/1/3/0/2/130289369/sineg.pdf
    • http://benplimpton.com/uploads/1/3/0/3/130313400/vexorewo.pdf
    • http://lovechildcare.org/uploads/1/3/0/6/130621859/sajelinanidodarefad.pdf
    • http://nnvmayorscup.com/uploads/1/3/0/7/130738628/kedewidomamaj-dupirirezaso.pdf
    • http://minnehahalawns.com/uploads/1/3/0/4/130488469/7151673.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_off00006291.bin
db323153682c417dd99e7b8ee0c74c8a7a89f88653db8f2c1a4a51d5843faa80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6291 7708 bytes

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