Malicious PDF — malware analysis report

Static analysis result for SHA-256 6589a21da3ed6160…

MALICIOUS

PDF

43.9 KB Created: 2020-08-07 13:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57eed6d362f6c38feff1ba1dc3e7bf2f SHA-1: 18e2f1a15743f76f6aa2728cab36d9d0ea9c8aef SHA-256: 6589a21da3ed616029434a269474c65bd1233fbd40325031a6ed1c4d9b3182e7
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm designed to deceive users. The embedded URLs, particularly the one leading to 'ttraff.ru', are flagged as malicious redirectors. The document body, though obfuscated, contains references to the malicious URL and benign-looking PDF links, suggesting a phishing or scam attempt 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=asthma+action+plan+pdf+pediatric In PDF document text
    • http://files.izenbergs.net/uploads/1/3/1/0/131070212/b588cce2.pdfIn PDF document text
    • http://files.infantswimoviedo.com/uploads/1/3/0/7/130739684/6ea116b0c10.pdfIn PDF document text
    • http://pusiniwij.lewisgreatdanes.com/uploads/1/3/1/0/131070450/8711824.pdfIn PDF document text
    • http://files.sdrm.shop/uploads/1/3/0/7/130739809/7638706.pdfIn PDF document text
    • http://nitetenus.truemedicine.ca/uploads/1/3/1/4/131453850/df67cb3936e.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/1/0436/3390/1726/files/joneginodiketotuzusasem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4591/1709/files/53584727524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4141/5580/files/77642850616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66691602327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/75786903586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/wusatexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/sedix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zofes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5116/2517/files/33805121855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2666/9987/files/65829950567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/mubovanawisiwujotipipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17810153535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5424/1694/files/dakazilexufarabef.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_off00006dfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFA 5384 bytes
SHA-256: 689cece42f44486286bc45932e4c233834d5f83e359ab720a221aede8cc3b95f
font_01_sfnt_off0000801e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801E 10144 bytes
SHA-256: 4a36db937b06b454034aa27d73b3badc8aeb3101447b1e6cda5d624208f49f0a