Malicious PDF — malware analysis report

Static analysis result for SHA-256 85a67998afc81619…

MALICIOUS

PDF

42.9 KB Created: 2020-04-27 21:14:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6b69c82ecef4acd8f0699321a79c2dc3 SHA-1: 113785ba123b639c461725f3c141ba0c7d2096af SHA-256: 85a67998afc8161930c5bdfb5bc235d9e94ce7ef12ef95f5db9592ff27702d55
62 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though heavily obfuscated, contains a URL that appears to be a lure for an 'escalation matrix document template'. The heuristics indicate a link farm and embedded URLs, suggesting the primary purpose is to drive traffic to external resources. 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://auxilium-ctc.com/uploads/1/3/0/4/130490776/130490776.html#escalation+matrix+document+template
    • http://ameliaschatt.com/uploads/1/3/0/9/130969893/dapomuwatate.pdf
    • http://fitzsdresses.com/uploads/1/3/0/5/130552097/jawepe.pdf
    • http://madeleinesdaughterbridalsalon.com/uploads/1/3/0/5/130539446/6022251.pdf
    • http://connakt3.com/uploads/1/3/0/7/130738861/1337139.pdf
    • http://panwallet.com/uploads/1/3/0/6/130604309/jilebeduxapafis_josobevoj.pdf
    • http://denizciyoga.com/uploads/1/3/1/3/131379928/tuvapaliv.pdf
    • http://ecosanexcleaning.com/uploads/1/3/0/3/130313196/9398371.pdf
    • http://waterfrontexecutiverentals.com/uploads/1/3/0/5/130589400/6b3429da33e91.pdf
    • http://combinedgreatness.com/uploads/1/3/0/6/130639116/3a2aac0be7514a.pdf
    • http://kennypestcontrol.com/uploads/1/3/1/1/131163601/lekosozosuvuto.pdf
    • http://in-house.studio/uploads/1/3/1/4/131407310/5007753.pdf
    • http://easycookingschool.com/uploads/1/3/0/8/130813362/1711900.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_off00008165.bin
1fbb5a3b46adfc9fa65ca14358d7dd6f70326f100ec110de813503363c9b9786		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8165 7708 bytes

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