Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba5dc37b4bd3878…

MALICIOUS

PDF

55.1 KB Created: 2020-08-10 15:32:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89eed339869b4e33880fc01237fedc7e SHA-1: 5cd93b0fb965aea85abdfeb7cdecd6c150813142 SHA-256: 1ba5dc37b4bd3878314b3bcf41c55355eea4c03bb9d5f2a35e529f0329d7c8ff
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic legitimate academic content, with the primary malicious URL being https://ttraff.cc/pify?keyword=doping+in+conducting+polymers+pdf. This URL is flagged as a known malicious redirector. The document's structure and embedded links suggest a phishing or redirection attack aimed at users searching for technical documents.

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=doping+in+conducting+polymers+pdf In PDF document text
    • http://files.joelallisonbassbaritone.com/uploads/1/3/1/3/131398113/lejezorupabotev_jikure.pdfIn PDF document text
    • http://files.finsolinc.com/uploads/1/3/0/7/130739444/gexosevixagit.pdfIn PDF document text
    • http://sizerav.scottish-eire-farms.com/uploads/1/3/0/7/130776485/voripekuzol.pdfIn PDF document text
    • http://files.businessformedicareforall.org/uploads/1/3/1/4/131411596/6063172.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/1/0430/4686/3005/files/98171190874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6708/8791/files/estadistica_para_administracion_y_economia_anderson_11_edicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1678/0956/files/bloat_in_cattle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0560/7062/files/zaxiravibemugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0223/8875/files/pmay_offline_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/sagufurezirufekolenimatat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/ninimuxubelaxusejasubar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0189/4296/files/bethesda_handbook_of_clinical_hematology_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6961/files/powerflex_70_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8918/9272/files/juzewawojatuwapotix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8576/5533/files/letter_for_employment_as_a_teacher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0806/1604/files/invertebrate_zoology_brusca.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_off000099c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99C8 5368 bytes
SHA-256: a1bfdc23d4d2748bc839d9726a27fb5083105010ac9affb4014b2912068cdefd
font_01_sfnt_off0000abfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABFE 10292 bytes
SHA-256: 8423ec3b97fb3ca695dbbba109fa9f4ef3493aa29d98d4c98220065ef23b28be

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