Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1cbd32f5cda5fa…

MALICIOUS

PDF

39.6 KB Created: 2020-08-10 18:48:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b623cb14cb000b534088bb169494e992 SHA-1: f5771ad689b7daa266e0508945011ec70f58d1a9 SHA-256: ee1cbd32f5cda5fa0e42bde4992abcd2b685531a823393513e88116b5cfd0412
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though obfuscated, contains text related to 'patent ductus arteriosus management pdf' and the redirector URL, suggesting a lure to trick users into clicking the malicious link. The ML classifier also 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=patent+ductus+arteriosus+management+pdf
    • http://vekin.joshuamilton.net/uploads/1/3/1/6/131606347/92437a2e6e22e7.pdf
    • http://tesid.lavernerosephotograpghy.com/uploads/1/3/0/7/130739430/9724470.pdf
    • http://files.humankindjournal.org/uploads/1/3/0/7/130775734/xedugadizamek.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7405/files/wakatijogetikuzoxeji.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/24259094943.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3453/files/los_numeros_primos_y_compuestos.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/23631881817.pdf
    • https://cdn.shopify.com/s/files/1/0434/8667/5109/files/64183106083.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0808/files/98137369393.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/51519214784.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/41361905806.pdf
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/vebujizujesijukuzewakojur.pdf
    • https://cdn.shopify.com/s/files/1/0435/7718/0328/files/invoice_file_sample.pdf
    • https://cdn.shopify.com/s/files/1/0435/7115/1007/files/correct_form_of_verb_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/kirobawojod.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_off00005cf3.bin
4a20eaaa7a8a34210b63989890f994e189247054a93dcb845ef711c85b99b8ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF3 5444 bytes
font_01_sfnt_off00006f5b.bin
f7f39d93ffbbfcb9484b1b780e6d4c306bcf131be9a7e40423f3e60fe724773f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5B 10192 bytes

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