Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8fb079cbed0f22…

MALICIOUS

PDF

48.7 KB Created: 2020-08-24 02:08:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fb29f9a84a6501cab4fc7af026dc3a5 SHA-1: 1c80de7a7939a1d252c8a32135670cc8165dcef7 SHA-256: fc8fb079cbed0f228942f545a016c705d9f66e922ced96f9517d849d9ac8c882
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a high density of embedded links, many of which point to known redirector infrastructure or appear to be part of a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=old+afghan+songs+free. The document body contains garbled text and references to 'wkhtmltopdf', suggesting it was programmatically generated to host these 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.ru/pify?keyword=old+afghan+songs+free In PDF document text
    • http://mawuk.cantyschool.org/uploads/1/3/2/6/132681670/3781269.pdfIn PDF document text
    • http://files.cartravelsafety.com/uploads/1/3/2/6/132681954/b2ba24be79c.pdfIn PDF document text
    • http://files.tabdoughertyart.com/uploads/1/3/1/4/131455141/5852835.pdfIn PDF document text
    • http://dadugejo.kristankoutureboutique.com/uploads/1/3/0/7/130738946/direkakavuje_darebu_tijibisogexosi.pdfIn PDF document text
    • http://zijimev.gmtmt.com/uploads/1/3/2/8/132814930/xokukofu.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/1/0428/1804/4063/files/mimodiralososazowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/70781041790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/raxido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0582/8520/files/maxabelajajogekusiwivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1103/0690/files/jizoxiwame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12509012650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7580/3038/files/wutigupezupusatuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/tufewenurarenaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6013/2005/files/additive_manufacturing_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3450/7426/files/differentiated_lesson_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1378/3199/files/estadistica_para_administracion_y_economia_anderson_8_edicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0765/4563/files/52511522073.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_off0000711a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x711A 5196 bytes
SHA-256: 30813899a85d5a97eab0aa6c9d36bb803c0e5ea26888f0bab81c22d3eb8d0b8d
font_01_sfnt_off000082c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C1 15844 bytes
SHA-256: ae01e2e0c8601b934bc524c0cb3c9e00fdfbb741b55123abfff19da492ab1fe2

Open this report in the interactive analyzer, or submit your own file for analysis.