Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c85597c7edd58fc…

MALICIOUS

PDF

36.9 KB Created: 2020-08-23 08:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acf85233771f1170b7a3ed6cf30590e1 SHA-1: b732800583c19af72a5b27ff3be651c0e07d9072 SHA-256: 7c85597c7edd58fcd6b1c9ae12e1210cf3f285885c96f4f8f282d25ec0604e23
150 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text, though partially corrupted, includes a URL that appears to be a lure for a movie, suggesting a social engineering tactic. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many hosted on Shopify, which is a common technique for distributing malicious PDFs. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file.

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.com/pify?keyword=platform+full+movie+video+film
    • http://sedusutap.parklanestablesponyclub.com/uploads/1/3/1/6/131637014/2e910e0c5.pdf
    • http://files.edgesafetyconsulting.com/uploads/1/3/1/3/131378950/xavojasaduv.pdf
    • http://files.liveatparkerhill.com/uploads/1/3/1/4/131438557/pevunakifigowe.pdf
    • http://wofip.northwood-ptsa.org/uploads/1/3/1/0/131070722/c364f27fe.pdf
    • http://wazonulo.lemonbayclaycenter.com/uploads/1/3/1/3/131383708/julaj-jefafewife-xidudogoxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2800/4507/files/jopuki.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/case_files_pediatrics_google_drive.pdf
    • https://cdn.shopify.com/s/files/1/0435/6446/6335/files/gatabefa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/flush_by_carl_hiaasen.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12339474235.pdf
    • https://cdn.shopify.com/s/files/1/0436/8665/8213/files/dobobefufa.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/leragarakamike.pdf
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/zidiwasoveroj.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_off000053a7.bin
8547a29cef3bbeec1cc1d22adfa6c6b3f4bcb6721f52e22fca9fc6cf32c71f68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53A7 4936 bytes
font_01_sfnt_off0000645a.bin
10f5a5476f477ec92d626327ea4956799745971d8f8b6439fc11ca9a06bd3421		 pdf-font-stream PDF embedded font (sfnt) at offset 0x645A 10076 bytes

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