Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a6bf150848dddc…

MALICIOUS

PDF

42.5 KB Created: 2020-08-15 02:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68849e7283d3a86b16fd99520c3775c2 SHA-1: ccfbd6593745d244f2a66325814b4986f3c411cf SHA-256: 17a6bf150848dddc69cb31325c4f486cf33db2396a01e12fa93e99bfd2b4a0ed
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. This redirector leads to a URL that appears to be part of an SEO link farm, likely designed to disguise malicious activity. The document body, though partially corrupted, contains text related to a 'user guide' and the malicious URL, suggesting a phishing or scam lure.

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=vype+epen+3+user+guide In PDF document text
    • http://files.fiddleheadmarina.com/uploads/1/3/1/4/131454012/didobamugexaxelojule.pdfIn PDF document text
    • http://divegewu.craigengstrom.ninja/uploads/1/3/2/6/132696021/69eded.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/1/0428/4078/5062/files/non_probability_sampling_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/surrealismo_literario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/72048517963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/vawozozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4235/4853/files/71001339029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/12993023281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9657/5904/files/rotuwavoxudulakididifib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3604/7522/files/manual_de_taller_chevrolet_captiva_2009.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 4

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_off000068a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A3 5116 bytes
SHA-256: 64d8e67fc17976fd81002c5c482df8924fb9541b01efaf1008e89d6a67c2faa6
font_01_sfnt_off00007a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A24 10352 bytes
SHA-256: 43f348626b750eb1b4fb6f22a20ed472189056fc995b967f8cbe390be1aef825

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