Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1dd95ebf847fb0…

MALICIOUS

PDF

44.9 KB Created: 2020-07-29 06:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aee5ab021da7f1b68ee9b64effda8052 SHA-1: b0153938006071fb48a787123d0a24911b06da9f SHA-256: 7b1dd95ebf847fb0962e1f09402609a7df302428db3e8b1f677be153d015d233
150 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to external resources, forming a link farm. One of these links, 'https://ttraff.ru/pify?keyword=notary+block+texas+template', is identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'notary block texas template', indicating a social engineering attempt to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.ru/pify?keyword=notary+block+texas+template
    • http://files.worlandshootingcomplex.com/uploads/1/3/1/3/131383838/ludir-goxeni-bawudodas-zulusuvevebi.pdf
    • http://files.pittsburghrunner.com/uploads/1/3/0/8/130814714/mijuxifafok.pdf
    • http://files.breezybrigade.com/uploads/1/3/0/8/130874671/3231728.pdf
    • https://cdn.shopify.com/s/files/1/0433/8538/9221/files/vedizodapotewarogaxusosim.pdf
    • https://cdn.shopify.com/s/files/1/0436/9799/5941/files/jasixaxanura.pdf
    • https://cdn.shopify.com/s/files/1/0435/5384/9499/files/89222006099.pdf
    • https://cdn.shopify.com/s/files/1/0428/4363/5879/files/21798577856.pdf
    • https://cdn.shopify.com/s/files/1/0434/2992/0930/files/73268267218.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/puxadaxunuxanusigevir.pdf
    • https://cdn.shopify.com/s/files/1/0434/8801/8594/files/8530073517.pdf
    • https://cdn.shopify.com/s/files/1/0430/9765/3397/files/sowexivetox.pdf
    • https://cdn.shopify.com/s/files/1/0428/1883/0492/files/jakefejawevogeno.pdf
    • https://cdn.shopify.com/s/files/1/0434/9234/3970/files/36696678912.pdf
    • https://cdn.shopify.com/s/files/1/0440/5769/0262/files/48051328168.pdf
    • https://cdn.shopify.com/s/files/1/0438/2064/6562/files/87518870790.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/bogutoxe.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/
    • https://cdn.shopify.com/s/files/1/0434/2992/0930/fi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007274.bin
924781c7c1f8ec0a52715f76f9ce2a93d1d3da57ca18985af788b8fc5e2b48f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7274 5056 bytes
font_01_sfnt_off000083b6.bin
08cab9e378c59ea8a5d93289f38bb65c63c7dee74f3e514e4e2c46dab63608e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83B6 10260 bytes

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