Malicious PDF — malware analysis report

Static analysis result for SHA-256 e767451fc098e1ff…

MALICIOUS

PDF

45.1 KB Created: 2020-06-03 22:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a03d905ff56cd67268e936306238852 SHA-1: e9ace9e6629b62b9347bf0e397e3096a8c6faa14 SHA-256: e767451fc098e1fff9d8c6277f7b232d1e23f71f10b262ae4462153f268a840f
62 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a link farm, indicating it is designed to redirect users to numerous other PDF files hosted across various domains. The document body, though heavily obfuscated, contains URLs that are part of this link farm. This suggests a social engineering tactic to drive traffic to potentially malicious or spam-related 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://zailiyazaita.com/uploads/1/3/0/7/130775071/130775071.html#factores+endogenos+y+exogenos+criminologia
    • http://uninsus.org/uploads/1/3/0/7/130739775/8935740.pdf
    • http://zerohourga.org/uploads/1/3/0/5/130588168/7567032.pdf
    • http://paintsandillustrates.com/uploads/1/3/1/4/131438442/f060a96.pdf
    • http://myjesustalk.com/uploads/1/3/1/1/131164243/ca51e69.pdf
    • http://ameliavaughan.com/uploads/1/3/0/7/130775592/6038672.pdf
    • http://triniortho.com/uploads/1/3/0/7/130738902/nofolugo.pdf
    • http://lovelejewellery.com/uploads/1/3/0/5/130540063/c1bdb4da45df6.pdf
    • http://creative-english.ch/uploads/1/3/1/1/131164266/8c47cc2de959765.pdf
    • http://studiocitynorth.com/uploads/1/3/0/6/130621310/gisipotisobev_kurigukev_wumafuj.pdf
    • http://nishkarshcoaching.in/uploads/1/3/1/3/131383921/migodesunusil.pdf
    • http://mrmacbiblebook2.com/uploads/1/3/0/5/130544889/tokefimamam_nakesomof_pejatoralab_diwenufu.pdf
    • http://1221citycenteroakland.com/uploads/1/3/1/3/131384255/3673661.pdf
    • http://zailiyazaita.com/uploads/1/3/0/7/130775071/terms.html
    • http://zailiyazaita.com/uploads/1/3/0/7/130775071/dmca.html
    • http://zailiyazaita.com/uploads/1/3/0/7/130775071/policy.html
    • https://dixurozazix.files.wordpress.com/2020/06/minovoradujawevejalapigoz.pdf
    • https://suvodopa.files.wordpress.com/2020/06/21549650879.pdf
    • https://rogezomul.files.wordpress.com/2020/06/zapevefezovosek.pdf
    • https://zogewuvoxer.files.wordpress.com/2020/06/lewegamebupaw.pdf
    • https://kuramajibi.files.wordpress.com/2020/06/minefimexumifubagabatomul.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_off000076fe.bin
4ba965427ede4ce146ea3e6dd612ee8a4b2c838108a8f17429e63e1908931bbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76FE 1696 bytes
font_01_sfnt_off00007f68.bin
d2f316a8fee55796a2b69972ad8212b431e7e9b805bad8f7b6a4c6c7ea101770		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F68 12004 bytes

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