Malicious PDF — malware analysis report

Static analysis result for SHA-256 310510d3871f546f…

MALICIOUS

PDF

53.6 KB Created: 2020-03-20 09:54:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 742efa780fd4faf2d6f053b8df3604c3 SHA-1: 68e629f90932ffc21c6c7e7e06130939e9cc6fd2 SHA-256: 310510d3871f546feae306ccdabeb171586926b2499c1648e2f63e650bc02205
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text and a reference to 'Lg tromm washer ue error', which appears to be a lure. The primary purpose seems to be directing users to external resources, potentially for malicious distribution or SEO spam.

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://bulldogtruckinsurance.net/uploads/1/3/0/6/130604505/130604505.html#lg+tromm+washer+ue+error
    • http://nwm12.club/uploads/1/3/0/7/130776779/dajoladapul.pdf
    • http://zhenrenyouxijulebu.br3h.com/uploads/1/3/0/9/130969647/9354446.pdf
    • http://potterypaintingsurrey.co.uk/uploads/1/3/0/8/130874318/e3bd395317ee.pdf
    • http://packer-products.com/uploads/1/3/0/5/130551986/7383539.pdf
    • http://moneymonologues.com/uploads/1/3/0/5/130588740/jiluxobini-farezamav.pdf
    • http://locallylongisland.com/uploads/1/3/0/5/130542922/kikiravagapuj-jodazibudokuxa.pdf
    • http://obomartin.com/uploads/1/3/0/6/130620773/841211.pdf
    • http://www.fitbitenutrition.com/uploads/1/3/0/3/130323236/zukaligu_sopuzu_borato.pdf
    • http://mail.theoda.org/uploads/1/3/0/2/130272072/niwekolitugopin.pdf
    • http://newyorkamericanclothing.com/uploads/1/3/0/5/130551756/bodorumipizezav.pdf
    • http://lynettehewett.com/uploads/1/3/0/6/130621422/zatomowedid.pdf
    • http://pvcs2019.org/uploads/1/3/0/2/130288926/9d0c66203.pdf
    • http://realtimecases.net/uploads/1/3/0/2/130270776/3392390.pdf
    • http://bonvivantsdc.com/uploads/1/3/0/3/130323672/tamubupe-lesafajal-rawuvodopo-vigilera.pdf
    • http://lykesfloridaolives.com/uploads/1/3/0/6/130620861/mujasunejiw.pdf
    • http://3coconut.com/uploads/1/3/0/8/130874001/4412549.pdf
    • http://www.northcontractror.com/uploads/1/3/0/7/130775197/cf2b02f93caf9.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_off0000a995.bin
d7fe109c8c7ee158cccb4cdb43ee4cffeefe1d4aac25c1442881b86ec3ed700a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA995 8112 bytes

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