Malicious PDF — malware analysis report

Static analysis result for SHA-256 4317be999bc0030c…

MALICIOUS

PDF

37.5 KB Created: 2020-08-28 00:00:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 481064619a2bf7f07a5e3d8df4336890 SHA-1: 4a08ec3f8c1d59561bcf00908944281b2a1a4c35 SHA-256: 4317be999bc0030c61b4fac523522bc245ddb4c1ae22d335f6580d87133983a2
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the embedded URLs, https://ttraff.ru/pify?keyword=mother%2527s+day+worksheets+for+kindergarten, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF files, suggesting a lure to download further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.ru/pify?keyword=mother%2527s+day+worksheets+for+kindergarten In PDF document text
    • http://dupabik.shelleyartwork.com/uploads/1/3/0/8/130814328/667de24.pdfIn PDF document text
    • http://files.hhupholstery.com/uploads/1/3/0/8/130813427/gufuxep-lokopojeku-nosomosome.pdfIn PDF document text
    • http://files.pickertfamilyfarm.com/uploads/1/3/1/3/131398187/gipukidulevezet.pdfIn PDF document text
    • http://xabob.antoniacundy.com/uploads/1/3/2/6/132695219/zemimonofeba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6820/9814/files/africa_geographical_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6152/4118/files/39399252342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9995/8939/files/vb._net_string_encoding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1189/9545/files/4191583428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0362/4856/files/82991628091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2033/6802/files/50494955453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/sezigudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6195/files/15556064722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/pozuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0374/8260/files/puzafufapoxegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/99514147282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/53877189249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/kingdom_come_find_father_simon.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4973 5220 bytes
SHA-256: 93352b03aefecd03c7bcff11d5df4315ea592cf0fbaec4550d6a11523e36ec9b
font_01_sfnt_off00005b56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B56 9220 bytes
SHA-256: 13d6b52bfc8a8609a7b3e04283f36cd2583b9826c57ad2a125e4a51c001baaf9
font_02_sfnt_off00007ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176