Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7249ee77be87380…

MALICIOUS

PDF

35.9 KB Created: 2020-06-08 01:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cfd8c8ad0a7e08c16c72ff9a9f721c1 SHA-1: 83f17cf3c1a75cd12131339c218bc6d42641a9e1 SHA-256: d7249ee77be87380d8779dde8cbbf6ed592b102eb07691271f69c61346a50d33
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 text, though partially garbled, includes a URL that appears to be related to free music downloads, suggesting a lure. The primary attack pattern involves directing users to a vast collection of external PDF files hosted on various domains, likely for SEO spam or to distribute further 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://mail.sovtrc.org/uploads/1/3/0/5/130589322/130589322.html#bedava+m%25C3%25BCzik+indir+y%25C3%25BCkle+mp3
    • http://soccerskillschools.com/uploads/1/3/1/6/131637686/b591c86b7096.pdf
    • http://jblmitzvah.com/uploads/1/3/0/5/130589399/fovewolawa.pdf
    • http://apmcivilengineering.com/uploads/1/3/1/3/131381243/tazazukegol.pdf
    • http://irielovebuttah.com/uploads/1/3/0/7/130740112/26f5c6d6fc1a87.pdf
    • http://intriguehealthyhairsalon.com/uploads/1/3/0/5/130541384/dozejasosutu.pdf
    • http://tysonthetransformer.com/uploads/1/3/0/3/130379814/jipavimorigeje-bupofavifixune-tivewor.pdf
    • http://74-123-72-48.mgwnet.com/uploads/1/3/0/6/130604406/6187396.pdf
    • http://katiegbryant.com/uploads/1/3/1/4/131437806/pomuzavojisimi_fagavepigitevid.pdf
    • http://interieurschrijnwerken.com/uploads/1/3/1/1/131164375/75f61ce4c85.pdf
    • http://papaspropwarehouse.com/uploads/1/3/1/1/131164475/a028e5f811.pdf
    • http://clicktrayhelp.writeituseit.com/uploads/1/3/0/6/130604406/3201116.pdf
    • https://toxuluva830071386.files.wordpress.com/2020/06/japupofuwavu.pdf
    • https://lejobadoni.files.wordpress.com/2020/06/viwazo.pdf
    • https://wibuvevi.files.wordpress.com/2020/06/90603240084.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_off000060ef.bin
f9b4d274663cf21ec6d94d88cc1c35d53aba3cc0cde555635b8cf437679ce790		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60EF 11488 bytes

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