Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2213c7d623676da…

MALICIOUS

PDF

43.8 KB Created: 2020-08-09 21:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3a59b893d0da27a5b01ca52c0f56ee5 SHA-1: 7ee69f7a87c38fe1f9038585e0486a09b48a2290 SHA-256: d2213c7d623676dacfbf5a82578a652eeff0042e4c1c8285aaa3d647c42e8b30
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.cc/pify?keyword=gametogenesis+in+flowering+plants+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure via a deceptive link.

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=gametogenesis+in+flowering+plants+pdf
    • http://files.crossfitgroundworx.com/uploads/1/3/0/7/130775594/6790177.pdf
    • http://files.augustinoloprinzi.com/uploads/1/3/0/8/130813851/pobefujapezoraka.pdf
    • http://files.pkapresents.com/uploads/1/3/1/4/131437683/5723426.pdf
    • http://gojaz.bassittdesigns.com/uploads/1/3/1/4/131437736/a55df3.pdf
    • https://cdn.shopify.com/s/files/1/0432/1610/9736/files/bezijom.pdf
    • https://cdn.shopify.com/s/files/1/0430/8706/9348/files/53727250163.pdf
    • https://cdn.shopify.com/s/files/1/0447/3615/1706/files/bayesian_networks_bayesialab.pdf
    • https://cdn.shopify.com/s/files/1/0432/0205/2257/files/47932739118.pdf
    • https://cdn.shopify.com/s/files/1/0428/4206/3004/files/vaxaladutibubukuluwatiso.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/iris_dataset_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/4963/8295/files/56861696460.pdf
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/separation_process_principles_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/17563758442.pdf
    • https://cdn.shopify.com/s/files/1/0437/3463/0549/files/82381794479.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lekefokatonerosabiwifeva.pdf
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/jebikalufireritef.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0793/files/gepinaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6689/2181/files/2065624075.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_off00006b80.bin
009a3047b1ac1867f1864d936c0de38d29baf7d0a87dbdf236e1887fb5d3f1af
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B80 5484 bytes
font_01_sfnt_off00007e25.bin
2937a6058ac1eb5bcad4c296e2b34609d24cd31969fb140193f13eccdf8290fd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E25 10540 bytes