Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdf18872bcf31d03…

MALICIOUS

PDF

47.6 KB Created: 2020-08-17 07:27:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa2fa89167cc421fc53778ebea946d42 SHA-1: c55c17f25e5ba8c6c95785fee7fd9ddd023b62cf SHA-256: fdf18872bcf31d03df64b1249bd700700039add526cfd012bff8de31511b1bc9
150 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a critical heuristic due to its inclusion of a link to known malicious redirector infrastructure. Additionally, it contains a link farm pointing to multiple PDFs hosted on Shopify, with the primary redirector URL being 'https://ttraff.com/pify?keyword=weather+report+black+market+rar'. This suggests a phishing or malware distribution attempt leveraging 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.com/pify?keyword=weather+report+black+market+rar
    • http://vorekum.ironmanjohn.com/uploads/1/3/0/7/130775045/gusebokezetu.pdf
    • http://files.knzcreativedesigns.com/uploads/1/3/2/7/132740343/gixemixatosukivux.pdf
    • http://jisuveriv.durhamcontractorstx.com/uploads/1/3/2/7/132740541/dobubofaroke.pdf
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/pitupeluvekiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/2461/2508/files/dawiwubajata.pdf
    • https://cdn.shopify.com/s/files/1/0430/6521/3089/files/79183199320.pdf
    • https://cdn.shopify.com/s/files/1/0448/0552/1559/files/boolean_search_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/kudigirasezazesagusiwig.pdf
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/gesikifinakejesow.pdf
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/kubikisoluvuvuxigukukosa.pdf
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/pokaruwuru.pdf
    • https://cdn.shopify.com/s/files/1/0436/5818/2809/files/experience_certificate_sample_for_electrical_engineer_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/5611/1520/files/maporesubide.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/juwesoxujat.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_off00007055.bin
476f16235cebcce081dbdfdbf516fbf252c88d9c53c7c37cebcc1f1a880e54e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7055 5212 bytes
font_01_sfnt_off000081f4.bin
3e5776fd2e16ad1d4cfb678a5ca2db1089dd95e3eb78cde51f594be14f07fe8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81F4 15448 bytes

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