Malicious PDF — malware analysis report

Static analysis result for SHA-256 40203a3a6b6ac9ef…

MALICIOUS

PDF

33.5 KB Created: 2020-06-11 21:14:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9960f81690ba7fd65364dd4520c4cb6f SHA-1: 21795cdf728176a3bd1ed6b860528eb94cac351c SHA-256: 40203a3a6b6ac9eff434d73f61c680496ae36ea95baaca116924f48a11a5bd5e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body contains text related to 'E46 m3 owners manual pdf' and mentions 'wkhtmltopdf', suggesting a lure for users searching for technical manuals. The primary intent appears to be directing users to a network of linked PDF files hosted on various domains, likely for SEO spam or to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://provowomensday.org/uploads/1/3/0/7/130739017/130739017.html#e46+m3+owners+manual+pdf
    • http://kpsmusik.com/uploads/1/3/1/3/131383934/vosefolew-wimekoj-lobupe.pdf
    • http://abztesttag.com/uploads/1/3/0/4/130488332/futabegesi-xeraxirimesolu.pdf
    • http://1customerwon.com/uploads/1/3/1/0/131071298/9647944.pdf
    • http://fernleighcottages.com.au/uploads/1/3/0/9/130969921/filabalokabofi.pdf
    • http://cashforhomeservices.com/uploads/1/3/0/5/130590666/5837081.pdf
    • http://mail.serenityhobbies.com/uploads/1/3/1/4/131438077/zadenufawujiza-zareg-majoxune.pdf
    • http://sftbco.com/uploads/1/3/1/6/131636819/9086967.pdf
    • https://polosewus.files.wordpress.com/2020/06/jupenijapitemulemaka.pdf
    • https://daritawaba.files.wordpress.com/2020/06/povokofikupezixu.pdf
    • https://pagapot.files.wordpress.com/2020/06/1260911773.pdf
    • https://gakirebeb.files.wordpress.com/2020/06/xewikelipujipebijel.pdf
    • https://xezifemubet.files.wordpress.com/2020/06/venorugizima.pdf
    • https://relexuvoreve.files.wordpress.com/2020/06/48548596648.pdf
    • https://pijetodewi.files.wordpress.com/2020/06/bimezizunidowobojika.pdf
    • https://wavomudefix.files.wordpress.com/2020/06/58112887689.pdf
    • https://menanesude.files.wordpress.com/2020/06/26370929629.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_off0000573c.bin
102bece7be1036a148966d457bfbb5097c9dd6f6a7c1eb6e8b5e88e64693096e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x573C 10364 bytes

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