Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1ac3a0f5169241e…

MALICIOUS

PDF

37.9 KB Created: 2020-04-02 18:25:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 666b1223c76675d43b66338fe2c7df4d SHA-1: c2c6f525ef1309e792985ffa3ab3346ed96cec9a SHA-256: c1ac3a0f5169241e93560f8eb81f2126857ef0ac7275f633e61ce688c90f8146
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. One specific link, http://trsthompsonrailservices.com/uploads/1/3/0/3/130379246/130379246.html#connectify+license+key, is also present in the document body, suggesting a potential lure for users. The presence of numerous links hosted on various domains indicates a likely attempt to manipulate search engine results or distribute malicious content through a link farm strategy.

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://trsthompsonrailservices.com/uploads/1/3/0/3/130379246/130379246.html#connectify+license+key
    • http://alamedahometeam.org/uploads/1/3/0/4/130489097/2522404.pdf
    • http://hemingwayconstruction.net/uploads/1/3/0/6/130621495/bunewojedu.pdf
    • http://swordsmantattoo.com/uploads/1/3/0/4/130476270/801190.pdf
    • http://fronhoferlab.net/uploads/1/3/0/4/130483603/xudulabutaxatibupu.pdf
    • http://katoandkin.com/uploads/1/3/0/7/130740412/d40e7b1c.pdf
    • http://mmafanvote.com/uploads/1/3/0/4/130476798/lisix-mipotimof-fikas-zoxup.pdf
    • http://cleardirectionmb.com/uploads/1/3/0/7/130739072/d06ba6c7434e.pdf
    • http://uconnpremedicalsocietynewsletter.com/uploads/1/3/0/5/130589174/velemudi-lapimaz.pdf
    • http://directional-ambition.com/uploads/1/3/0/5/130539798/5638293.pdf
    • http://tjwhitford.com/uploads/1/3/0/5/130546574/5887684.pdf
    • http://losangelesmuralproject.com/uploads/1/3/0/8/130814178/zebonulew-nonisomabupon-gejupubapimis-kisigenu.pdf
    • http://mosaico.ch/uploads/1/3/1/3/131379194/fademixi.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_off00006bb9.bin
9f792f355bbd3c572a85ae5d6b976b68541daa1a98da45800b865af6df4f3886		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB9 8104 bytes

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