Malicious PDF — malware analysis report

Static analysis result for SHA-256 3375ff6d763a012b…

MALICIOUS

PDF

33.8 KB Created: 2020-08-04 22:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5852fdaf25a552edff91195fbded74c SHA-1: 388bdc0425db88bbb78e9283743435f44f88d5b8 SHA-256: 3375ff6d763a012b9c643f81007395ebbf5c71749b1c5af5e95791e2b87f5a10
150 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as a free PDF to Word converter, which redirects to a known malicious infrastructure. The document body and embedded link text reinforce this lure. The presence of numerous embedded links, many pointing to Shopify domains, suggests a link farm or SEO manipulation tactic to increase visibility. The ML classifier strongly indicates 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=cambiar+de+pdf+a+word+gratis
    • http://files.carolinepakel.com/uploads/1/3/1/3/131398094/8583998.pdf
    • http://fewitaxu.unimark.hu/uploads/1/3/1/4/131406592/fotepaw-kegevobudojalab.pdf
    • http://files.concretebendoregon.net/uploads/1/3/1/3/131384573/e9c002504.pdf
    • http://files.cindyconnerscoaching.com/uploads/1/3/1/4/131407010/8856841.pdf
    • https://cdn.shopify.com/s/files/1/0431/5598/0439/files/vuzoloman.pdf
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/69307802376.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/11797635866.pdf
    • https://cdn.shopify.com/s/files/1/0433/6972/6110/files/87880277968.pdf
    • https://cdn.shopify.com/s/files/1/0434/4876/2529/files/acca_f3_revision_kit_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0431/2819/3184/files/guzazolavazujap.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/daisy_powerline_426.pdf
    • https://cdn.shopify.com/s/files/1/0439/1341/2760/files/borisasowibavuba.pdf
    • https://cdn.shopify.com/s/files/1/0429/0723/8567/files/talewibazidadanav.pdf
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/54453835733.pdf
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/ferigozijulubegup.pdf
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/fobujiliwufosobekutojupa.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_off000047ec.bin
47edf197f1c99d564951abaa836418ac76007774d428fed5d666cfa7dc072129		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47EC 5464 bytes
font_01_sfnt_off00005a72.bin
e0fabdf1d9f2403e69b8b5898134e195eae14db5640bcbbd696b5618b2fc08d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A72 9372 bytes

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