Malicious PDF — malware analysis report

Static analysis result for SHA-256 4891eb47db76fd05…

MALICIOUS

PDF

34.9 KB Created: 2020-05-24 08:06:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e839ce3f424bfa3bbe1d1afe965fc1c SHA-1: aa26f9c09175e8c8af3d440e58835d3e2d329c37 SHA-256: 4891eb47db76fd05ab3f73efbbc43d30601cffe48a8d1f23950bdc332c790fde
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a PDF SEO link farm. These links point to various PDF files hosted on different domains, suggesting a tactic to manipulate search engine results or distribute malicious content. The document body itself is heavily obfuscated and contains some of the same URLs, reinforcing the link-distribution attack pattern. 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://07i9xx.salon225.com/uploads/1/3/1/4/131437776/131437776.html#diet+right+for+your+personality+type
    • http://galerieo.fr/uploads/1/3/1/0/131070382/kitalo.pdf
    • http://crossfitgroundworx.com/uploads/1/3/0/4/130477146/zekiwomim.pdf
    • http://worldheartbeatradio.com/uploads/1/3/0/5/130590229/5584102.pdf
    • http://anahadsharma.com/uploads/1/3/0/2/130289782/b95876822c0.pdf
    • http://makinscentscandlesandcrafts.com/uploads/1/3/0/4/130478819/nikajowor.pdf
    • http://eliteacousticinteriorsllc.com/uploads/1/3/0/9/130969725/sejubepezimifimesi.pdf
    • http://careplusconnect.com/uploads/1/3/1/8/131855992/dfba2.pdf
    • http://iamnonprofit.org/uploads/1/3/0/6/130621506/5496959.pdf
    • http://doyleplumbers.com/uploads/1/3/0/3/130323603/puzufekune-perefurijaze-wiwobofago-zomeletibudira.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_off00005f07.bin
ba962abcd61dac6d0980ef810bf7314e6101abae084e57f655f15412f3907f5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F07 9804 bytes

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