Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee24443cf4687c24…

MALICIOUS

PDF

40.7 KB Created: 2020-08-05 17:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7aa1f86baf4b2390000797d1ba972ab SHA-1: 304687a96a8fc7f5a099b08e30e38b65346ad34f SHA-256: ee24443cf4687c240ea6ffd59678b8b75fc87f46f63d2aff03e2d5bed428b5f6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to a URL that appears to be a lure for 'abbyy pdf transformer'. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The ML classifier strongly indicates maliciousness. The primary attack vector is likely social engineering through deceptive document content and malicious links.

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.cc/pify?keyword=abbyy+pdf+transformer+3.+0+full+t%25C3%25BCrk%25C3%25A7e In PDF document text
    • http://files.castpartynyc.com/uploads/1/3/1/4/131438111/xabejexakinugugoboz.pdfIn PDF document text
    • http://files.rocktherun4mda.org/uploads/1/3/1/4/131453276/kulitifugivelapivozi.pdfIn PDF document text
    • http://files.beexploration.com/uploads/1/3/1/6/131606954/gijimurukuguwer_wesaro.pdfIn PDF document text
    • http://files.lmchurch.ca/uploads/1/3/0/8/130874284/lebakuxaguzopud_pigemebewav_litupir_tumupon.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/1/0435/4883/6004/files/70819152271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6846/5053/files/nudanasomewuburut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/14661950544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/pedodorisedarefexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7287/0807/files/fumubob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6754/7552/files/airtel_dth_plan_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1812/5465/files/central_alpherafs_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/laworemixox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/63605197529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2223/8374/files/dr_cindy_trimm_healing_prayer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4525/files/58674136580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/ordering_fractions_from_least_to_greatest_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6055/files/jufuvagenona.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 5

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_off000056d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56D0 6124 bytes
SHA-256: 93d718cf4ce21d3e50282d13fa1a5fa312bf7e2c987f042bbff2055a650f0138
font_01_sfnt_off00006b63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B63 12836 bytes
SHA-256: 9cec2dc97e216d32a19018bf3efea1080489ecceb84fce4516a0e98dbdb3b2de

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