Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fe397845a90c901…

MALICIOUS

PDF

46.7 KB Created: 2020-07-27 15:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06710cc9705e73d97e0205c3cb123f40 SHA-1: 4d81c4d6c82c2f53f0bf2d678b59036012de7d80 SHA-256: 7fe397845a90c90121ef78b236b57f489f9294d4c33b6debddd934dac6124df7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, including one pointing to a known malicious redirector, disguised as a CV template. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, likely for SEO manipulation or to host further malicious content. The ML classifier strongly suggests malicious intent, and the presence of embedded URLs confirms the document's purpose is to direct users to external, potentially harmful, resources.

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=cv+template+for+teachers+job In PDF document text
    • http://files.kristintippingillustration.com/uploads/1/3/1/4/131483184/sonipo_sivukixetuduti_nilunujexi_nusanap.pdfIn PDF document text
    • http://files.krwoodworkings.com/uploads/1/3/1/8/131871894/1591208.pdfIn PDF document text
    • http://files.stephenskitchenandcatering.com/uploads/1/3/1/6/131606280/ba43ca8360.pdfIn PDF document text
    • http://files.talsegevphotos.com/uploads/1/3/1/1/131164046/4664459.pdfIn PDF document text
    • http://files.jenniferseasonsbooks.com/uploads/1/3/1/8/131858540/3396266.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/1/0433/3076/4968/files/44029051316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5352/1823/files/57634362236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9449/8709/files/59195949257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7140/5222/files/56440973571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5710/files/34582426685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/vikaduxojuwebuvixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/vazidotuwigawanefewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/gikivigejozagivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2262/8502/files/numobirenemipubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7899/1518/files/makinisozikisofezup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/giwekokexipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3256/8220/files/wubezafukimuvu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7928 5188 bytes
SHA-256: b548866a672ede28bc70d772c3859a410c89ecce09f22da99785faf282a6628d
font_01_sfnt_off00008ade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ADE 10292 bytes
SHA-256: 46fc605a2a3014bd207d434b8570f5d3161c02404ccbf002232772d346add9ea