Malicious PDF — malware analysis report

Static analysis result for SHA-256 de725a8306b45484…

MALICIOUS

PDF

35.8 KB Created: 2020-08-08 07:55:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b06a80b2969fec79e9a37ad9e5da20ee SHA-1: 5f9697755d3a58ca7a08244b3b1b948b98735e02 SHA-256: de725a8306b45484b9549d793fbed93d956469ede98b9923133136a71702d1a0
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=sant+butterfly+valve+price+list+2020+pdf'. This URL is embedded within the document body, disguised as a price list. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly supports the malicious nature of this PDF. The primary intent appears to be redirecting the user to malicious infrastructure, likely for phishing or malware delivery.

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.ru/pify?keyword=sant+butterfly+valve+price+list+2020+pdf
    • http://files.jablacrosse.com/uploads/1/3/1/4/131437380/tirajisejaxakiraliza.pdf
    • http://files.thecovenantschristandyou.com/uploads/1/3/1/3/131379434/94345039.pdf
    • http://files.vanessakeel.com/uploads/1/3/0/8/130874284/8626503.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/63101113290.pdf
    • https://cdn.shopify.com/s/files/1/0429/6369/7817/files/tuvedisirupokotogamudapek.pdf
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/36903624488.pdf
    • https://cdn.shopify.com/s/files/1/0433/5815/9006/files/xovepojofuno.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5671/files/shrink_mac.pdf
    • https://cdn.shopify.com/s/files/1/0428/5405/6095/files/tears_of_a_tiger_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/4686/9915/files/xodos.pdf
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/vefajisoxazinilajirex.pdf
    • https://cdn.shopify.com/s/files/1/0429/4184/1571/files/zexatagawejuvofokidesoni.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_off00004ae0.bin
1cabd14a1bd68d7a06fd206804e676d05042c82a67cbe07c80ec0c05f4c6f108		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AE0 5828 bytes
font_01_sfnt_off00005ecf.bin
fd9155b71884cdf05a9b18907d0c1a282c1ce35460b48b0c3f404f3ba21c67ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECF 10400 bytes

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