Malicious PDF — malware analysis report

Static analysis result for SHA-256 b096d003ed9d205f…

MALICIOUS

PDF

37.6 KB Created: 2020-08-23 21:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a6ef4947baa870d9ec121a66a95aca78 SHA-1: 68b81ce94edc1898a94441c4cae241f9a27e455e SHA-256: b096d003ed9d205faca2c83cc53f814f511012c3de222b9313494c8dd9b9778a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.cc/pify?keyword=deck+the+halls+music+sheet', is designed to lead users to harmful content. The document body, though heavily obfuscated, contains references to this redirector and a list of other URLs, many hosted on Shopify, likely to appear legitimate. The ML classifier strongly indicated maliciousness.

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=deck+the+halls+music+sheet
    • http://files.daynasdogsitting.com/uploads/1/3/0/9/130969837/fuzisamalebemiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2913/5521/files/anexo_20_sat_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/6289/4495/files/saxakavakasu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/d_d_bag_of_beans.pdf
    • https://cdn.shopify.com/s/files/1/0431/0056/9766/files/64524814152.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/nazasadujiduzunekuwega.pdf
    • https://cdn.shopify.com/s/files/1/0430/1350/5185/files/built_to_last_james_c_collins.pdf
    • https://cdn.shopify.com/s/files/1/0435/1862/3896/files/xotavukotiraxadusikezudu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3881/0010/files/95792597219.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/83429573449.pdf
    • https://cdn.shopify.com/s/files/1/0434/3139/5493/files/jimixumo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/42747134151.pdf
    • https://cdn.shopify.com/s/files/1/0431/2596/4949/files/85259776406.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdf
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/potinib.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/fakiruwunezozo.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_off00005783.bin
d3e2d201083878c7f5a44ebab482fa312f8de3f5d918599b6fefbcbfb2689417		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5783 5004 bytes
font_01_sfnt_off0000686a.bin
cd2ca972f056161f4ae26ca1909f938606955807006b7ba95d73d3b9cb97c99d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x686A 9832 bytes

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