Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6d5df84c2ab40b…

MALICIOUS

PDF

41.4 KB Created: 2020-08-01 17:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c7605332ccd476797315b29cc100de9 SHA-1: c80e4955de91ae67797c895f2f16af2dbe8d3e35 SHA-256: 0e6d5df84c2ab40b325f594a77359d23f328d7e6f9f57477e3f8f12e707bdedb
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or to host malicious content. The primary malicious link, https://ttraff.com/pify?keyword=murray+lawn+mower+parts+diagrams, is identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains references to the same malicious URL and benign-looking PDF links, reinforcing the lure. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=murray+lawn+mower+parts+diagrams
    • http://files.bhgs.org.uk/uploads/1/3/0/8/130814229/3331135.pdf
    • http://files.serviceworship.org/uploads/1/3/1/3/131383398/e825cfeb03f7933.pdf
    • http://files.eshelartphotography.com/uploads/1/3/1/4/131453036/2571583.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87745409623.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6488/files/vikopa.pdf
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/59738458917.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/fitijo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6843/1265/files/dikasuxajasewajole.pdf
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/rawupuborilef.pdf
    • https://cdn.shopify.com/s/files/1/0430/8982/1847/files/zomemofe.pdf
    • https://cdn.shopify.com/s/files/1/0437/4714/7928/files/63066634263.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/95347257366.pdf
    • https://cdn.shopify.com/s/files/1/0433/1801/8216/files/kirarogurififekevakol.pdf
    • https://cdn.shopify.com/s/files/1/0434/4817/2710/files/lelugoxalexufikoji.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/53545136033.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2982/files/43774769338.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006357.bin
db4eec6415f34503efb094bf81648bbecb70cfe78ee62f982e0b924574178ee7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6357 5480 bytes
font_01_sfnt_off00007606.bin
74cc2c34a6fefb51cb86fd0ebe83555f0f44ec92c8f9b7a38cf72ae91c9e4598		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7606 10192 bytes

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