Malicious PDF — malware analysis report

Static analysis result for SHA-256 2de697e25e3ff501…

MALICIOUS

PDF

37.6 KB Created: 2020-08-17 14:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b05164a5324328438d71b75927362e0e SHA-1: 030561a89d66124fc4d593a274102f0dab67d033 SHA-256: 2de697e25e3ff50110b29db81ce92a036342acf172fc42fa1072ef8a29af06e0
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though partially obfuscated, includes the target URL, suggesting a lure to a malicious site. The ML classifier strongly indicated maliciousness, and the PDF structure itself is indicative of a link farm designed to distribute malware or phishing content.

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=clubbers+guide+ibiza+2008
    • http://files.midgt.com/uploads/1/3/0/8/130813409/newajodij-zebetevovuses-sexerod-vakumapibamafis.pdf
    • http://files.huttvalleysportsawards.co.nz/uploads/1/3/0/7/130739918/nimenomuner.pdf
    • http://files.davidholdsworthauthor.com/uploads/1/3/1/3/131380666/9739747.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5062/files/gederoramozadekimamo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0607/3759/files/zodojugumirobixebe.pdf
    • https://cdn.shopify.com/s/files/1/0435/2851/9832/files/adjectives_coloring_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/90726095627.pdf
    • https://cdn.shopify.com/s/files/1/0432/5956/0094/files/ruzepelipemiteloruk.pdf
    • https://cdn.shopify.com/s/files/1/0434/2710/2876/files/mathematics_maths_dictionary_a_to_z_with_meanings.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/vuvodokigefowarisezoxuw.pdf
    • https://cdn.shopify.com/s/files/1/0437/3823/5031/files/palepupogalerop.pdf
    • https://cdn.shopify.com/s/files/1/0448/1158/3645/files/gta_san_andreas_cheats_file_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/tukafasewawekazexuxu.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_off00005403.bin
cc7c10e82f703d2182eb7663c907ce9094f539f2300500b501012281416c589c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5403 5556 bytes
font_01_sfnt_off000066e7.bin
e6bf451a17130ce8113e53148495e27ee87e70e5b33a7025afab4cbb2cdfb390		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66E7 10412 bytes

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