Malicious PDF — malware analysis report

Static analysis result for SHA-256 51f5313112432b1d…

MALICIOUS

PDF

43.1 KB Created: 2020-04-08 08:42:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 93b5493575ba336c42778d3e8a71a489 SHA-1: 99b4f8c5562eb47456929b8a378b93b940be3445 SHA-256: 51f5313112432b1d86f70d7071dc75a0e75d676a70c42b7be1c77b088fe2610b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 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 reference to 'Tiro parabolico oblicuo ejemplos resueltos' and includes URLs pointing to various domains. These URLs likely serve as a link farm or a distribution mechanism for further malicious content, aiming to manipulate search engine results or redirect users to harmful sites. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://treasures4yourheart.com/uploads/1/3/0/6/130621677/130621677.html#tiro+parabolico+oblicuo+ejemplos+resueltos
    • http://theluckycoconutandmango.net/uploads/1/3/0/9/130969607/7fa652135c968.pdf
    • http://mountainfestival.org/uploads/1/3/1/3/131398440/notimugizurip.pdf
    • http://xspace360.com/uploads/1/3/0/2/130288333/kikitejezijedos-taxatigiv-begurapomuvider.pdf
    • http://3dwear.ph/uploads/1/3/0/5/130538922/c2ff382.pdf
    • http://ppmrktg.com/uploads/1/3/1/4/131438486/ec2513.pdf
    • http://moroneyconservation.com/uploads/1/3/0/5/130543543/nuwat.pdf
    • http://efarsystem.org/uploads/1/3/0/4/130475881/5643820.pdf
    • http://takingflight.club/uploads/1/3/0/6/130604215/c50f6f6f.pdf
    • http://rolemodelcrossfit.com/uploads/1/3/0/6/130639859/belodababuku-zipadoluzedupan-pamixokuwadavi-gobog.pdf
    • http://trishmorrislifecoach.com/uploads/1/3/0/7/130776245/b84a78.pdf
    • http://magnoliawrenltd.com/uploads/1/3/0/6/130639077/c280b.pdf
    • http://indigoxtreme.com/uploads/1/3/0/5/130550920/2c5406a4ff63ccb.pdf
    • http://dktransportllc.com/uploads/1/3/0/2/130288301/c082be297.pdf
    • http://fpgreaterclayton.com/uploads/1/3/0/4/130476172/a23dee2.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_off00007153.bin
76ebe2dc9328d4baf74fb4d70fa0339f23cceb0804a4ec0917959a7782678c72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7153 9356 bytes
font_01_sfnt_off000092dd.bin
4d9ec2aec8f1ca6bebe1b56492fd55a77bba3a6e98efb76508c1b835d4eb9912		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92DD 2860 bytes

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