Malicious PDF — malware analysis report

Static analysis result for SHA-256 239993fb801b4195…

MALICIOUS

PDF

50.7 KB Created: 2020-08-09 21:54:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9cf09e22c2e6fd56b6cbee576a0d6849 SHA-1: fad9504abc6cc3c605b449cf99fb4bc312b58005 SHA-256: 239993fb801b4195d04162b74ce4e31be506ab7080699d3c2fa55b9c07d57d85
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link to `https://ttraff.cc/pify?keyword=sap+blueprint+document+pdf` is identified as a malicious redirector. This suggests the document is designed to trick users into clicking the malicious link, likely leading to a phishing page or malware download. The ML classifier strongly supports the malicious verdict.

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=sap+blueprint+document+pdf
    • http://rikatonu.isc-shippingconsultancy.com/uploads/1/3/1/1/131163667/7017529.pdf
    • http://files.jesmicjewelry.com/uploads/1/3/1/8/131871699/5031685.pdf
    • http://pojel.dryanbuford.com/uploads/1/3/1/4/131407535/wezor.pdf
    • http://files.aps7.com/uploads/1/3/2/7/132740586/zasonudilinix-tirufizita.pdf
    • https://cdn.shopify.com/s/files/1/0437/6192/6293/files/genetic_algorithms_in_machine_learning.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2119/files/sociocultural_theory.pdf
    • https://cdn.shopify.com/s/files/1/0430/0632/8995/files/33909938692.pdf
    • https://cdn.shopify.com/s/files/1/0431/9802/1793/files/55391982676.pdf
    • https://cdn.shopify.com/s/files/1/0434/5433/3093/files/15394488473.pdf
    • https://cdn.shopify.com/s/files/1/0436/3524/5214/files/82058228820.pdf
    • https://cdn.shopify.com/s/files/1/0437/4927/7845/files/cadmium_chloride_toxicity.pdf
    • https://cdn.shopify.com/s/files/1/0433/4315/1272/files/totetelupaxijolaxerusok.pdf
    • https://cdn.shopify.com/s/files/1/0437/5930/4858/files/d_d_5e_artificer.pdf
    • https://cdn.shopify.com/s/files/1/0449/8771/1656/files/3d_reader_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a2d.bin
7ab7f36ca08f387f992a995c3a3dd0c8c70c7eed815c8ff81950726a0f280e4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2D 5248 bytes
font_01_sfnt_off00008bdc.bin
cf0ca1ea7ebedb3ca6cc3bfd2c8e44f0fe64bfee1e5631f69f2a5caa08dbc4f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BDC 10536 bytes
font_02_sfnt_off0000afe4.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFE4 4324 bytes

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