Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeea0bf3284bdb89…

MALICIOUS

PDF

40.7 KB Created: 2020-08-22 00:29:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9dbaec8a3d93b997485b5428cb91f8a2 SHA-1: 78c42e5fc799f8c4f486109ee86f969c957fd357 SHA-256: aeea0bf3284bdb8901985eadeba95ca0e11cca0adf7fdd3249ea75bdb493cacf
150 Risk Score

Malware Insights

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

The PDF contains a deceptive document body masquerading as a pathology report, which includes a link to a known malicious redirector. The PDF also hosts a large number of links to other PDFs, likely for SEO poisoning or to distribute further malicious content. The primary malicious URL is https://ttraff.cc/pify?keyword=actinic+keratosis+pathology+report, which is designed to redirect users to potentially harmful 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.cc/pify?keyword=actinic+keratosis+pathology+report
    • http://fened.zeldaknapp.com/uploads/1/3/2/3/132303168/vubamaz_pufisonam.pdf
    • http://files.honeycutthausshepherds.com/uploads/1/3/2/7/132740413/mulidavasosewa-julagabizefapel-lapufaz-sifusu.pdf
    • http://vajorid.iccspa2020.com/uploads/1/3/1/6/131637814/besedokebezuv_wetuwajunotarov.pdf
    • https://cdn.shopify.com/s/files/1/0429/5871/7087/files/appendicular_skeletal_system.pdf
    • https://cdn.shopify.com/s/files/1/0432/9940/5979/files/31812159568.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/25340184420.pdf
    • https://cdn.shopify.com/s/files/1/0434/4925/4048/files/sweet_shop_designs.pdf
    • https://cdn.shopify.com/s/files/1/0433/2204/8667/files/brand_positioning_definition.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1713/files/kefinewijo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/76924495626.pdf
    • https://cdn.shopify.com/s/files/1/0437/6605/5063/files/97283576216.pdf
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/51908062409.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_off000060e4.bin
f451c1f6af9f96162ce49c980b3b5b631174fd70cfebacaa951f83c422dc65f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60E4 5352 bytes
font_01_sfnt_off0000730f.bin
9f5ee3a734efef8baf54b67779c0835cb546d7820f4197c2f82491f0e5443893		 pdf-font-stream PDF embedded font (sfnt) at offset 0x730F 10532 bytes

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