Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f43ea6bc6f5ce12…

MALICIOUS

PDF

42.2 KB Created: 2020-08-25 06:17:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15533ae89c8ff05e598dd342059e8087 SHA-1: ceacee21580bd0c7b2b0c6c3136e09138130a0dc SHA-256: 6f43ea6bc6f5ce126c87f91a856f932aaa77e91371477e6dca906a5d811aac24
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector to malicious infrastructure, disguised with a lure related to financial report analysis. The ML classifier strongly indicates maliciousness. The embedded URLs suggest a phishing or scam attempt, likely using a spearphishing attachment as the initial access vector.

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=financial+report+analysis+definition In PDF document text
    • http://wezoberoz.pureexistencedance.com/uploads/1/3/0/7/130739892/4077893.pdfIn PDF document text
    • http://wojugeti.cluminouseyecare.com/uploads/1/3/0/7/130738721/2222304.pdfIn PDF document text
    • http://files.chriscuzoh.com/uploads/1/3/2/7/132712483/zadaf-fepejufuw-jadepis.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/81579197248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0740/8290/files/kaxig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0835/8561/files/child_handwriting_fonts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/entertainment_rigging_harry_donovan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/53428726168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/kudanumuzas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3074/0135/files/28447321692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7016/6942/files/67951499364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8003/2160/files/depuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/pebovavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5719/8742/files/hamlet_monologue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7333/1609/files/64835214822.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 6

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_off00006763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6763 5204 bytes
SHA-256: 53c582f58fad9c22a4e298648e3c5cba119de12ff3248503b8af67fc5da9af41
font_01_sfnt_off00007922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7922 10192 bytes
SHA-256: ee9b6f48407e59ce69a7cb051b146b3de4af4553e5354c0ec0eb1ade71f06deb

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