Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0961f457eae47a7…

MALICIOUS

PDF

39.6 KB Created: 2020-08-04 12:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a499faea364fc1089f2894ff60aff866 SHA-1: 6994f22df858fade3cec92baacb2335c61b0b35c SHA-256: d0961f457eae47a7ef8a212433c588268502be69eefac68a56583f6b8ac092d3
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as educational material. This indicates a phishing or social engineering attempt to lead the user to malicious content. The presence of numerous other links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to increase visibility and lure unsuspecting users. No scripts were extracted, limiting the analysis of further payload delivery mechanisms.

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=personification+worksheets+grade+3+pdf
    • http://files.suzanneensmann.com/uploads/1/3/2/6/132696598/3483715.pdf
    • http://files.mekomtorah.org/uploads/1/3/1/4/131406841/9205710.pdf
    • http://files.thebeautyexpertgroup.com/uploads/1/3/1/1/131164520/2f26630dc.pdf
    • http://files.marrajewellery.com/uploads/1/3/0/8/130814118/2238277.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0558/files/mawekapidales.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5291/files/82249935328.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80835258875.pdf
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/nuvakeranolozil.pdf
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/32299835320.pdf
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/pixitefofevaze.pdf
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/84224139677.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/bavur.pdf
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/dosilizavosipi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/16915513897.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/tasexigaje.pdf
    • https://cdn.shopify.com/s/files/1/0433/4570/7166/files/gelakawufikegizev.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_off00005b84.bin
2ab00a3e6207dcfa1ece05258a3294bd56071cf4ee3055bc4b0c5467eb7965ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B84 5708 bytes
font_01_sfnt_off00006f09.bin
e6131cf3da4cd2ed10c5446082249744830e083e5065128a4dd8011517596b87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F09 10132 bytes

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