Malicious PDF — malware analysis report

Static analysis result for SHA-256 8df5ba93e1bf8f82…

MALICIOUS

PDF

32.6 KB Created: 2020-05-15 11:39:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59aef568be6f84a4b800df318c5bdcfc SHA-1: d29c627d688936a878eb88319d2b128db2ce1098 SHA-256: 8df5ba93e1bf8f82751bef1b794e841c6b453577f9b4da91fea15540c43be334
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm, suggesting the primary goal is to drive traffic to these external resources.

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://nbjmoldassessment.com/uploads/1/3/1/4/131437576/131437576.html#australia+2008+movie++free
    • http://tamaramitchelldavis.com/uploads/1/3/0/2/130289809/manuzojawoderedasid.pdf
    • http://priscilajamison.com/uploads/1/3/0/5/130551630/2486618.pdf
    • http://foundationclosing.com/uploads/1/3/0/3/130313176/waxal_zeboresawezugi_kudevobup_nasuvisededil.pdf
    • http://iamcouturequeen.com/uploads/1/3/0/6/130604112/1858488.pdf
    • http://beldenbethelchapel.org/uploads/1/3/1/4/131454492/97014e40880db7e.pdf
    • http://togetherintothelight.com/uploads/1/3/0/8/130814763/9711316.pdf
    • http://goodidealschool.com/uploads/1/3/1/4/131482916/02a056.pdf
    • http://bossautotransport.com/uploads/1/3/0/6/130604220/tirumi_buditifuvu_fatum.pdf
    • http://merciasilver.com/uploads/1/3/0/7/130738765/kozivinobula_tejozud_bexupopaluf.pdf
    • http://joyskitchen.net/uploads/1/3/0/2/130288707/5b2332940b.pdf
    • http://rocklandcountydoula.net/uploads/1/3/0/7/130740420/tabuxogivebapama.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_off00005275.bin
9de0d583c48a3b2be26b3efd311096a2ca3bc811615a138e38f90af78867c583		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5275 10968 bytes

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