Malicious PDF — malware analysis report

Static analysis result for SHA-256 926458dea71dab7e…

MALICIOUS

PDF

39.4 KB Created: 2020-06-01 13:09:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06c9be2671847a5de407bbed87ee7d0f SHA-1: 416adf6bcc6ab7425eae99f28cccc1900ce9cf57 SHA-256: 926458dea71dab7ecdd792f396541b2e097313dbe48e35fbb814fe6ef5f477a0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with a high probability. The primary attack pattern involves directing users to external websites, likely for malicious purposes such as phishing or malware distribution. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://blacktreelofts.com/uploads/1/3/0/4/130483416/130483416.html#atkins+72+pdf
    • http://disepi.com/uploads/1/3/0/9/130969657/jabebir-joxatap-bunavulip-tumogapejukuz.pdf
    • http://thejointhoboken.com/uploads/1/3/1/6/131637302/xejidogazej_wapiledoj.pdf
    • http://common-sense-psychology.com/uploads/1/3/0/6/130604892/xizerofezogima.pdf
    • http://ns1.cloverdalecomputer.com/uploads/1/3/0/7/130775405/segepabubepix.pdf
    • https://teserofumuga.files.wordpress.com/2020/05/80111580301.pdf
    • https://panuvezipib.files.wordpress.com/2020/05/93631003594.pdf
    • https://feguwijagin.files.wordpress.com/2020/05/detikaxokotune.pdf
    • https://nomutodiri.files.wordpress.com/2020/05/71722882337.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_off00006ecc.bin
b4545ab74dbdf7854c3d4fdc23bbe89e18923365194b3bb34addcdff7fc6f4ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECC 10708 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.