Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddc07f591d213ca3…

MALICIOUS

PDF

40.9 KB Created: 2020-08-03 21:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b696c5685dfff53713ddc6e6232f9872 SHA-1: 2f1a5864d1709d66c555958ab4bf289a3bbb9e59 SHA-256: ddc07f591d213ca3f1f909287fc9b09335c9684473a91d28b7bb0f83e19b35d8
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a machine learning classifier and contains numerous external links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the embedded URLs, 'https://ttraff.com/pify?keyword=borislav+pekic+zlatno+runo+pdf', is identified as a known malicious redirector. The document body contains garbled text and embedded URLs, further supporting the malicious intent.

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.com/pify?keyword=borislav+pekic+zlatno+runo+pdf In PDF document text
    • http://files.oharaconsulting.ca/uploads/1/3/2/7/132741339/zefumowetatujog.pdfIn PDF document text
    • http://files.newspark901.org/uploads/1/3/2/8/132814958/2737278.pdfIn PDF document text
    • http://files.krakatoamenu.com/uploads/1/3/1/4/131409200/gexesa.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/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/woreperufexojidebadawem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7520/6294/files/root_external_2_internal_sd_card.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/fosiladifabidalese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6859/5112/files/28066121757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20785775646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7573/8527/files/nawulijad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/21137069113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/gejimuvoboluwiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/bumegujarenap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/vodedonazatinixomodozidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8145/7061/files/18057434891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5916/5849/files/list_of_adjectives.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/13065706744.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 3

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_off00006179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6179 5372 bytes
SHA-256: 895f10ed67ac54a8307a02c47b3bfbc1b7b84efa98428343a863e19122067b06
font_01_sfnt_off000073e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E3 10204 bytes
SHA-256: 78f63aa5dde850ac03b19bdc7b7d4ad7e0a9c329ba6fab6a60955f5c012a0d6d

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