Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ef35bf228e18040…

MALICIOUS

PDF

37.8 KB Created: 2020-03-23 03:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3fb97954473945db9546734ef547bf05 SHA-1: 0f9183249dec61e7c7194603a70f6800c05e28f3 SHA-256: 2ef35bf228e180403eb5cf5be7650a00a2b9f7d89702c951dc9683fb6fa50ef0
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, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The primary lure appears to be a 'Nest thermostat manual 3rd generation', which redirects to a collection of PDF files, suggesting a phishing or malware distribution attempt.

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://atelierjademyr.ca/uploads/1/3/0/6/130620720/130620720.html#nest+thermostat+manual+3rd+generation
    • http://mail.miniaturesbygarcia.com/uploads/1/3/0/7/130775461/wifaput_kifosubused.pdf
    • http://mx.stpaulofdamascus.com/uploads/1/3/0/7/130776405/futudarur.pdf
    • http://shopeat4funkids.com/uploads/1/3/0/6/130620698/fafetewesuxapalo.pdf
    • http://mercurybullet.com/uploads/1/3/0/6/130621187/rexamologonakeji.pdf
    • http://wirelessertx.com/uploads/1/3/0/7/130739886/347438faf550.pdf
    • http://cojoworldwide.com/uploads/1/3/0/2/130271159/56694676.pdf
    • http://dukebsa.org/uploads/1/3/0/6/130621083/witipawemuvereduvuka.pdf
    • http://foundedontruth.com/uploads/1/3/0/2/130272648/tufajanot_waramiwifawitu_mafidiminuderet.pdf
    • http://chrysalisstore.com/uploads/1/3/0/5/130590043/sutipilap-poperod.pdf
    • http://fastpitchgearpro.com/uploads/1/3/0/2/130271226/lubosexesabopem.pdf
    • http://carpenterbangalore.com/uploads/1/3/0/5/130545011/117189.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_off000069f2.bin
00b4fd0f223d78d8e701daee4175c76e021398e9b5ba08fac00296e22d466318		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69F2 8392 bytes

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