Malicious PDF — malware analysis report

Static analysis result for SHA-256 708161040572e0a2…

MALICIOUS

PDF

45.5 KB Created: 2020-08-30 14:23:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0af15c0feeb79517db46eca9cf2ccac1 SHA-1: 2e1cea881bacb7ac2549421ecbb76fc0ff4b362e SHA-256: 708161040572e0a283fda4f210e8089cf7533cd476316799f9e2dc3270ec7444
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically the URL https://ttraff.cc/wix?keyword=fasting+in+the+new+testament. It also exhibits characteristics of a PDF link farm, with numerous external links, many pointing to benign content but likely serving to obscure the malicious redirector. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful content.

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=fasting+in+the+new+testament
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_f9041e3a4ecf47f2bb1f5f26774a73c0.pdf
    • https://static.usrfiles.com/ugd/0bcf16_48cd20dfe04947abbe6b9ab48eb3991d.pdf
    • https://static.usrfiles.com/ugd/b8c837_23bbc3f41b1c4d88aa8a33f05ba5bcb1.pdf
    • https://static.usrfiles.com/ugd/b8c837_4877bc4b4c9941c49c24fecd89eff65e.pdf
    • https://static.usrfiles.com/ugd/b8c837_9cf5d56a661243fba9817a90c2b050e1.pdf
    • https://static.usrfiles.com/ugd/be19e1_860d067839434437a2822b53aa77d489.pdf
    • https://static.usrfiles.com/ugd/b8c837_b9842a2897bf4bdc9bb74fe7f8ce7dda.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/j_perm_algorithm.pdf
    • https://cdn.shopify.com/s/files/1/0431/6125/6091/files/number_line_negative.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/58713366370.pdf
    • https://cdn.shopify.com/s/files/1/0434/0337/8839/files/89068482342.pdf
    • https://cdn.shopify.com/s/files/1/0428/3462/4668/files/meverutar.pdf
    • https://cdn.shopify.com/s/files/1/0439/0957/8907/files/mesofawotovojifelevoguboz.pdf
    • https://cdn.shopify.com/s/files/1/0432/0110/1985/files/bogawivoma.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8550/files/bosch_oven_manual.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_off0000755c.bin
edea797a90cbb91f4313adc19bb14996470322f2ad96ed4c8f634e52d2bde53f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x755C 5020 bytes
font_01_sfnt_off00008662.bin
0dc12dbd1c3e3c5067cf75cd47bdfa56f4048288343fcdb6c15e6feeae013e93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8662 10108 bytes

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