Malicious PDF — malware analysis report

Static analysis result for SHA-256 41dd2b6f32d9d86f…

MALICIOUS

PDF

49.6 KB Created: 2020-08-02 18:05:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6df9e9b44b3994d905c92dfc4944d83d SHA-1: f2aed0cf61b21775f082814464dde5617d4a04f2 SHA-256: 41dd2b6f32d9d86fbff0ff8cafe273b8bc2390816a14ac7257496de9a77c3077
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link 'https://ttraff.ru/pify?keyword=demonomicon+4e+pdf' points to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests the document is designed to host a large number of external links, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

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=demonomicon+4e+pdf In PDF document text
    • http://files.24diva.com/uploads/1/3/1/8/131872055/f77465c72ab6c.pdfIn PDF document text
    • http://files.phoenix-aura.com/uploads/1/3/1/4/131406036/cbae59127fec250.pdfIn PDF document text
    • http://files.meowmeowpowpowlit.com/uploads/1/3/2/7/132740845/761880.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/1/0437/8555/2030/files/dazubulijedibopidedazaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8958/3514/files/11634820743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5567/6568/files/fazinabexoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1399/5672/files/nemibemokewizejikib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7258/5881/files/84764602131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9877/6487/files/78799726553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4839/4142/files/89508414890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8725/0087/files/65082487408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/13648844188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5850/3584/files/54905505943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/pakaw.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_off0000860e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860E 4872 bytes
SHA-256: 254529e4d41dabf8a578327c9f00e6a629646bccebc6d22cd501768be392a007
font_01_sfnt_off000096a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96A5 10328 bytes
SHA-256: 206d5c01fd23d5cb0c00eaa2cd912eb36aeb593ff6a54132f490b5841f54fc64

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