Malicious PDF — malware analysis report

Static analysis result for SHA-256 593d2147b29d817d…

MALICIOUS

PDF

77.3 KB Created: 2020-06-07 18:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 923b127d45475422f1e91a9a9bf6d45f SHA-1: a51c88c6bda6cedca6338ce947a5b14961c775ca SHA-256: 593d2147b29d817dd09ae2a0b711c9cc73bd5e94e00f838551bad57cc91b4ac2
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, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents hosted on different domains. The document body contains a reference to 'Vinotemp vt 182 manual' and embedded URLs, suggesting a lure to download a manual or related content. The primary attack pattern involves directing users to a link farm, likely for SEO poisoning or to host malicious content. No scripts were extracted, and the document body is heavily obfuscated.

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://317.undesirable.us/uploads/1/3/0/2/130274154/130274154.html#vinotemp+vt+182+manual
    • http://cinderellabanzon.com/uploads/1/3/0/7/130738629/b26fd0ff7e.pdf
    • http://mta-sts.mx.randolphroadrunners.org/uploads/1/3/0/2/130272325/wigimetimulorim.pdf
    • http://drlucyholmes.com/uploads/1/3/0/2/130288883/dab0be60e62.pdf
    • http://church3danimation.com/uploads/1/3/1/4/131437776/kudamalob-kuredonase-wufid.pdf
    • http://webmail.inmatelocatorservice.com/uploads/1/3/1/4/131437601/425814a087.pdf
    • http://ahpsolutions.net/uploads/1/3/0/4/130475989/pivovuwesop.pdf
    • http://4mq.undesirable.us/uploads/1/3/0/8/130874627/kazirivig.pdf
    • http://whiteboardsandwanderlust.com/uploads/1/3/0/7/130775509/sovoteta.pdf
    • http://webmail.teacherbattleplans.com/uploads/1/3/0/8/130814050/693601.pdf
    • http://maldonadoconstruction.org/uploads/1/3/0/2/130272281/lefuromupemadu.pdf
    • https://jefogusiku.files.wordpress.com/2020/06/givadudedino.pdf
    • https://fokolivemuxe.files.wordpress.com/2020/06/jizimibigafukasin.pdf
    • https://sikuvuxopar701666652.files.wordpress.com/2020/06/94060000070.pdf
    • https://bavorekivaso.files.wordpress.com/2020/06/4259045349.pdf
    • https://livasif.files.wordpress.com/2020/06/wizulowesopirimolipoloji.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000519a.bin
9f8e4b8076d78a8a1531ff01bf9cbe88f811336f4a828b8d3f6cc8e04b52bd1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x519A 59376 bytes
font_01_sfnt_off0001043d.bin
b41f1f69eb271bd610a004ba87be467b8ba24cfeb355847c7ffda588d949f948		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1043D 10504 bytes

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