Malicious PDF — malware analysis report

Static analysis result for SHA-256 175e87cb997cec85…

MALICIOUS

PDF

56.9 KB Created: 2020-08-14 09:10:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8d130ef6d5aae0e1c89c3ba0025b48e SHA-1: c24a24378303932a085119382b5c9c7628334e3c SHA-256: 175e87cb997cec85a55d6ba7746c4bd6750b66f75578b9d2f3300df3aaa1d3a4
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links to external resources, masquerading as a free download for 'Parental care in animals pdf'. The primary link, https://ttraff.ru/pify?keyword=parental+care+in+animals+pdf, points to a known malicious redirector. The document's structure and the high number of outbound links suggest it is part of an SEO link farm or a phishing campaign designed to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=parental+care+in+animals+pdf In PDF document text
    • http://files.dccsac.org/uploads/1/3/2/7/132712129/pidosedewujoxalob.pdfIn PDF document text
    • http://duleve.foodfightdenver.com/uploads/1/3/1/6/131637419/gasofakotuxisulas.pdfIn PDF document text
    • http://wijuti.ottawaprayercenter.org/uploads/1/3/2/8/132814930/vufedalo.pdfIn PDF document text
    • http://files.pembrokeactivelivingcentre.com/uploads/1/3/0/8/130814056/gofuz-widedimiviru-numiputazid-dutobaguvugi.pdfIn PDF document text
    • http://vutikise.soifersmith.com/uploads/1/3/0/7/130738524/391057c1df12.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/1/0433/0687/7080/files/sitadekekogog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6588/2277/files/animator_s_survival_kit_by_richard_williams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4832/1702/files/fojirofenogibadepavavol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/94161033740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/lefizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/sexizaperiximagozevaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4950/0315/files/61961206798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3463/0549/files/wivamegukakixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/bixadewaligumidezowagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/sivob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9659/files/21824932529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1311/9905/files/zowadorogulisigedokoleka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2964/2911/files/nuxigixewujovugokibowerig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/rebawet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6477/1238/files/basic_accounting_entries_examples_pdf.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_off0000a091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA091 5300 bytes
SHA-256: cdb4965cc074e7f691dfa005ecb84d1a067743eda0a97ffaeb80317c4e58a8da
font_01_sfnt_off0000b277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB277 10476 bytes
SHA-256: d634615499a06f2d569794af7d37898698df6ecd0f1bb5a48bd1b55b5912dc76