Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a1c35fb7bade37…

MALICIOUS

PDF

61.2 KB Created: 2020-08-05 03:18:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47ca7764d5de29a167bc08df6e8f3c5f SHA-1: 3a4f84a9106b65950d2e1084393211ef27383e2d SHA-256: 18a1c35fb7bade37eb0a600ea790795d47c73193a1ed10ca28fdb287d86cdb85
154 Risk Score

Malware Insights

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

The PDF file was identified as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.ru'. Another heuristic flags it as a PDF link farm, with many links pointing to Shopify-hosted PDFs. The document body contains the URL 'https://ttraff.ru/pify?keyword=the+ascended+masters+light+the+way+pdf', suggesting a potential SEO poisoning or traffic redirection scheme.

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.ru/pify?keyword=the+ascended+masters+light+the+way+pdf
    • http://files.fioga.org/uploads/1/3/1/6/131606617/tegedubu_nasasanepomub.pdf
    • http://files.mosholudaycamp.com/uploads/1/3/0/9/130969312/bcfaed50065.pdf
    • http://files.brantfordtrackandfieldclub.com/uploads/1/3/1/4/131407152/4553063.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/48772536602.pdf
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/95923314969.pdf
    • https://cdn.shopify.com/s/files/1/0437/2529/1671/files/9397867250.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7917/files/bojedosejufozuwus.pdf
    • https://cdn.shopify.com/s/files/1/0429/9443/4202/files/sadabok.pdf
    • https://cdn.shopify.com/s/files/1/0430/1111/3123/files/hp_officejet_5740_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/5172/9574/files/rujozosijamoseti.pdf
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/lawawotugag.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/43707342929.pdf
    • https://cdn.shopify.com/s/files/1/0432/9455/6320/files/mebomunesewalaxu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9255/7462/files/80570155439.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/95169676592.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_off0000b119.bin
5a83c7592f92aa95e8b1983f87a1f9418dcc788b0bb26717471bf4513ca7e42c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB119 5712 bytes
font_01_sfnt_off0000c470.bin
87e3494acf7639ddac7cc2f2627d0d73d7d09f7b644bf1de485517cb433d0619		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC470 10272 bytes

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