Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2630ed144fd530…

MALICIOUS

PDF

45.3 KB Created: 2020-08-03 11:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9260f37bc31d7221608398a97034617 SHA-1: 0ecc4ce917aaede653c8ba7faf9add1dae6c5da5 SHA-256: 5c2630ed144fd530d1f23fef2619c72e1615fa60ce539b12748b9e0c645bbdc6
194 Risk Score

Malware Insights

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

This PDF document contains embedded links that redirect to malicious infrastructure, specifically identified by the 'ttraff.cc' domain. The document body, though heavily obfuscated, contains the same lure text and URLs, indicating a deliberate attempt to trick users into clicking on the malicious link. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for phishing or malware distribution.

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.cc/pify?keyword=python+interview+questions+tutorialspoint+pdf In PDF document text
    • http://files.sandcastletreasures.com/uploads/1/3/0/7/130739918/952efea14f99d.pdfIn PDF document text
    • http://files.theoptimalageingprogramme.net/uploads/1/3/2/6/132681479/2608561.pdfIn PDF document text
    • http://files.hlcaurora.org/uploads/1/3/0/8/130874411/23c8f045.pdfIn PDF document text
    • http://files.faithathome.com/uploads/1/3/1/4/131406082/mipiwu.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/1/0433/2758/6457/files/95070632469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3470/6069/files/dalarobukupewarisani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/13725223277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/48883852455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9850/4354/files/mamorin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/fodanenelupunolopuzif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/598627557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/xurekusudupedimuxutaseki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/6195404033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/zepadivaluwososonafenenad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3287/files/76025395941.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 8

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_off000070d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D5 5512 bytes
SHA-256: cb061397f4f1fd4197e2020aea1c64a1e0bca5b02cd0d8ba7aa36b0ccf87ffd0
font_01_sfnt_off000083a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A9 10888 bytes
SHA-256: 78243bf212e030e26747af99dc8514302523c2d16709ef293afe52514c29ef02

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