Malicious PDF — malware analysis report

Static analysis result for SHA-256 172073b60cd8aa16…

MALICIOUS

PDF

41.0 KB Created: 2020-08-29 22:50:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b821b226058fc3815a79e4791d066e8 SHA-1: 5bada1f625baf3791ee89ee13fa73e32e6ae69d8 SHA-256: 172073b60cd8aa1678ec2a6540ba24b1d56f7c2849981e2129da71eb10575055
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.cc/wix?keyword=art+of+seduction', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a tactic to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=art+of+seduction
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/9775/9652/files/bopirutejiritakot.pdf
    • https://cdn.shopify.com/s/files/1/0432/2980/6759/files/28441138304.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/exercices_corriges_d_atomistique.pdf
    • https://cdn.shopify.com/s/files/1/0435/6040/3103/files/tinotewazuvadan.pdf
    • https://cdn.shopify.com/s/files/1/0439/4100/3432/files/11594710187.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/91490674013.pdf
    • https://cdn.shopify.com/s/files/1/0429/2434/3462/files/18928844932.pdf
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/affairs_cloud_march_2020_current_affairs.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/72152798287.pdf
    • https://cdn.shopify.com/s/files/1/0429/0006/2367/files/13693740523.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ab2000b8d6042e19db345e48f2bcbda.pdf
    • https://static.usrfiles.com/ugd/b8c837_37ebca5215094a1cb1e566d6df96baff.pdf
    • https://static.usrfiles.com/ugd/b8c837_70c277f22ac2468082653bf955e79bc0.pdf
    • https://static.usrfiles.com/ugd/b8c837_680e05bdc0c94673a999faa07cd065ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_f8472c99018f48b3b8afc86dcfd9bbd3.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064f5.bin
40b3bad3ea8868402e67105ef249bfb39aa032c3fef71a4d85d7c69406d7daaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F5 4760 bytes
font_01_sfnt_off00007530.bin
1819409d2c5e413535ba4b4f12d55dc18b64169845ddc72dbf2601fee0c49542		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7530 10064 bytes

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