Malicious PDF — malware analysis report

Static analysis result for SHA-256 40e7cd490b9ed6b4…

MALICIOUS

PDF

34.9 KB Created: 2020-06-07 16:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c155069c79426fdc661b2b087c38cd2 SHA-1: 958c824a822b36fcc73c0de5473eaab03f6d5cb2 SHA-256: 40e7cd490b9ed6b4f520253d33e54e1fa46b1d2460a772ce80dbea1cc0fcf445
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, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains URLs that point to external domains. These links are likely intended to redirect the user to malicious websites for phishing or to download further malware. The presence of numerous links suggests a link farm or SEO poisoning tactic to distribute malicious content.

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://beckyjonescookiesandcakes.com/uploads/1/3/0/4/130476784/130476784.html#meb+%25C5%259Fark%25C4%25B1+indir
    • http://chowny.com/uploads/1/3/1/4/131438157/gifulu-pudepukuliw-rajogisarafoxik-wuzavubuvefaben.pdf
    • http://uprootdprep.com/uploads/1/3/0/8/130874253/4301547.pdf
    • http://sepryca.com/uploads/1/3/0/8/130814292/furor.pdf
    • http://rachunkowoscgniezno.pl/uploads/1/3/0/7/130775868/3759937.pdf
    • http://protechmydevice.com/uploads/1/3/1/8/131856207/566989.pdf
    • https://liporog.files.wordpress.com/2020/06/moruwidafo.pdf
    • https://kumitewefa.files.wordpress.com/2020/06/7351128765.pdf
    • https://derexomej.files.wordpress.com/2020/06/99692127362.pdf
    • https://bedifixovid334311393.files.wordpress.com/2020/06/woxakajofupolixaporupofon.pdf
    • https://kozaxijewob.files.wordpress.com/2020/06/35699398174.pdf
    • https://segaxitom.files.wordpress.com/2020/06/1634785192.pdf
    • https://futuxew.files.wordpress.com/2020/06/jobofekaxalokudobixorago.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_off00005984.bin
935aec13af91b19bdf46263bfdd33246925644c48136ccdb84438b88a34d6067		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5984 12224 bytes

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