Malicious PDF — malware analysis report

Static analysis result for SHA-256 4652438f04719449…

MALICIOUS

PDF

34.7 KB Created: 2020-10-26 01:24:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 47b7c597a1386653960284fcfaf31075 SHA-1: bd14defa95e59c6c66c061d0c754179b95984612 SHA-256: 4652438f047194496b5d620ccada8870299979386b254625753e5d63f1a7d43f
182 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to disposable hosting services and redirector infrastructure. The primary purpose appears to be SEO manipulation and directing users to potentially malicious sites, as indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristics. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ggtraff.ru/aws?keyword=economist+april+2018+pdf In PDF document text
    • https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/78216a32a26cfb.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/3471586ae14859.pdfIn PDF document text
    • https://ritixalasan.weebly.com/uploads/1/3/4/2/134265532/doworo_miwuwuk.pdfIn PDF document text
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/vuxomotijuwur-getegimineza-gamirad.pdfIn PDF document text
    • https://valetapos.weebly.com/uploads/1/3/4/2/134265584/kipuxupunigibaw_tupotidugofeze_tabivolob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f870baa0aac0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369932/normal_5f8d38222a2b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371791/normal_5f8f5e593d23d.pdfIn PDF document text
    • https://veraweno.weebly.com/uploads/1/3/0/7/130739577/miniban.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/eb845a2b.pdfIn PDF document text
    • https://tenikekiso.weebly.com/uploads/1/3/0/7/130775729/gilamurolopek.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/mevaxapun-pinugese.pdfIn PDF document text
    • https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/domijedaxixak.pdfIn PDF document text
    • https://juporolo.weebly.com/uploads/1/3/1/3/131380745/bizav.pdfIn PDF document text
    • https://mujetuzavos.weebly.com/uploads/1/3/4/2/134266282/aa0c3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e82bd50-271b-49ef-866f-9a76de360495/gexotesiliwibodibakatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9757/8435/files/ziradelozezuguwidebugila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0655/7859/files/12407670834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1362/2936/files/kediborapukufovorifijigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7000/5663/files/22667625118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5920/3234/files/74054941522.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7762 5776 bytes
SHA-256: 145201457261bbaffea4d7f30039f7851967d7556a0cd9b5b0fc3bd25d0c77b1

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