Malicious PDF — malware analysis report

Static analysis result for SHA-256 23076923fc64739b…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 06:20:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 213b8bc7ca5910cd97c7b3d31ef913d1 SHA-1: b85758edd60ff3dedbdd35c774b24653b71071a1 SHA-256: 23076923fc64739b317b02ec307ae3cbedb7e0628d3da5bce35ea0bb3d1d32bc
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, many of which point to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains text referencing 'World cup match time table pdf' and the malicious URL, suggesting a social engineering lure. The ML classifier also strongly indicated maliciousness.

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=world+cup+match+time+table+pdf In PDF document text
    • http://files.migrainepro.com/uploads/1/3/0/8/130874012/e87fd6c07bd83.pdfIn PDF document text
    • http://files.newreach.com/uploads/1/3/2/7/132712080/7120797.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/1/0435/2396/5080/files/angular_6_tutorial_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0369/6536/files/java_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3087/8120/files/calibration_technician_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/brachiaria_brizantha_piata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8031/9130/files/addis_ababa_city_administration_housing_agency_condominium_winners_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/zumofobajotimuxidebir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2137/6410/files/96124477395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/algebra_equations_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4869/6993/files/countries_of_the_world_and_capitals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/52387478714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3798/5690/files/strategic_management_decision_making_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3971/7538/files/how_to_search_sheet_names_in_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8746/2551/files/gmat_full_form_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0532/1109/files/gikibiweworigidekegone.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 8

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_off00005bdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDF 5372 bytes
SHA-256: ac1970e2e0dbb9041035154314eba1faf67d31fd122067ad548450e876b9b2fc
font_01_sfnt_off00006e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E05 14232 bytes
SHA-256: a484b3814a0f52811629c586d4573fc91b66ad32e6ebb1398dacc30abf55412e

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