Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcf07e00267759f7…

MALICIOUS

PDF

41.8 KB Created: 2020-06-23 01:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 624f8d7d980ea66d63255b76db5da686 SHA-1: 69b5f1e799a73f8d5f5c7b35c190920685083200 SHA-256: bcf07e00267759f7b57b5d835fbdc7f26640d47ddc596ae217cf1ff5d29839fe
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially obfuscated, also contains several of these URLs. This suggests a link farm or redirection scheme designed to lead users to malicious content or further downloads. No scripts were extracted from this sample.

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://1ml.undesirable.us/uploads/1/3/0/5/130540477/130540477.html#solo+leveling+guide+ffxi
    • http://george.everythingconnects.org/uploads/1/3/1/3/131398138/kumim-jixiwigopisab.pdf
    • http://thevintagefarmhousewj.com/uploads/1/3/0/5/130589227/4493463.pdf
    • http://neurobehavioralalliance.org/uploads/1/3/1/3/131398532/c20434577.pdf
    • http://xn--hlsounderskningar-qqb56a.se/uploads/1/3/1/4/131452860/2918756.pdf
    • http://truenewfoundlanddoglovers.com.au/uploads/1/3/1/4/131437822/zomorisupuzi-pavimo-fiwus.pdf
    • http://landscapelegends.com/uploads/1/3/0/6/130639706/dfd435.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_off0000662a.bin
fec797c2c82deef0cbebcb4b14bd1ed5ded62fea7adc9610ed004ad35069a9ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x662A 4624 bytes
font_01_sfnt_off000075fe.bin
bac8ca7a22d4824696f660598483f0a245acfd7d48af83125acfb0ce3c43995e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75FE 10936 bytes

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