Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9f3f049479e2588…

MALICIOUS

PDF

78.6 KB Created: 2020-06-06 08:26:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a70a66b201e16e699e619a868af7880b SHA-1: 0c1ece418c1bfb0f3c4614b627fddfadf9773bfd SHA-256: b9f3f049479e25885dc494f63dc5516d895468c66253ba2fe5da044d073a2898
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous external links, a common tactic for SEO poisoning or phishing campaigns. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a movie, suggesting a social engineering pretext. The PDF_SEO_LINK_FARM heuristic firing indicates a large number of outbound links, reinforcing the malicious intent.

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://ankodn.com/uploads/1/3/0/7/130775135/130775135.html#el+auto+increible+pelicula+completa
    • http://jeffreywachowicz.com/uploads/1/3/0/7/130738623/3068216.pdf
    • http://sdsservices.net/uploads/1/3/0/6/130621485/716c5.pdf
    • http://artxllcusa.com/uploads/1/3/0/8/130874258/najupunupivegiwerodi.pdf
    • http://rejuvatouch.com/uploads/1/3/0/9/130969572/tukesubiv.pdf
    • http://ankodn.com/uploads/1/3/0/7/130775135/terms.html
    • http://ankodn.com/uploads/1/3/0/7/130775135/dmca.html
    • http://ankodn.com/uploads/1/3/0/7/130775135/policy.html
    • https://jabodizepum.files.wordpress.com/2020/06/32263354624.pdf
    • https://wokediwiwoj.files.wordpress.com/2020/06/wofob.pdf
    • https://pegolupoduw.files.wordpress.com/2020/06/63620260157.pdf
    • https://fejenukobam.files.wordpress.com/2020/06/79946007359.pdf
    • https://gomubefibi.files.wordpress.com/2020/06/80019001015.pdf
    • https://wunugevakel.files.wordpress.com/2020/06/fakibafuxinaz.pdf
    • https://wevidiruv.files.wordpress.com/2020/06/xegizirilabefuvolafep.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_off00010162.bin
b177b88bf27fa8a084aa3a1454ec64f76e1ff94592e608c7aa822af8b051f2b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10162 13936 bytes

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