Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1de7dbe40a71fb…

MALICIOUS

PDF

36.9 KB Created: 2020-08-03 08:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20febe235fb9ffedba52b7509d0234d3 SHA-1: 342a32efb4aaa4b17312bca3479e2aad14b6a69c SHA-256: ee1de7dbe40a71fbcb33b3c5f7f21aad128c5716070b71dd84e3c419426beb11
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text and a URL that appears to be part of a link farm, suggesting a lure to external malicious content.

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.com/pify?keyword=weather+plymouth+meeting+pa In PDF document text
    • http://files.leahchanglearning.com/uploads/1/3/1/4/131438265/3999904.pdfIn PDF document text
    • http://files.leadwithlauren.co.uk/uploads/1/3/2/8/132814680/dufufunu_wiresaku_lasanuta.pdfIn PDF document text
    • http://files.laurabartell.com/uploads/1/3/1/4/131406701/gozikobodotu-zadanazaj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5403/0231/files/14997062611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/rudafetoteruzikasilibezuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/epson_perfection_v600_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/med_surg_made_easy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2273/5767/files/56818434410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/dekuwejofodezapujiwomid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12091312038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9060/8285/files/sekozuwubepokowemunalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/89582475927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4243/0362/files/64076548999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6220/6357/files/7089935261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45598155969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/luzobuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/88614353834.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5484 5172 bytes
SHA-256: 9e3ecb8533c69ca7818ba546fbada883cb5e524f5a90a8f5497f5826c15c0ba6
font_01_sfnt_off00006607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6607 9636 bytes
SHA-256: c7353f370fc8911783ed11dd57d89157dae1bfa49dc79136b7907a944a101818

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