Malicious PDF — malware analysis report

Static analysis result for SHA-256 6718c66d0532da59…

MALICIOUS

PDF

34.7 KB Created: 2020-08-01 02:42:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e791b3947bdfa7fba2967c6cc053617b SHA-1: 50f5d584f826cea2cd3cf10e6796a41aaf4330b6 SHA-256: 6718c66d0532da59d904591256091ad0e90edefa8c629db010fe45031da83265
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector designed for SEO spam and phishing. The document body, though heavily obfuscated, contains text related to 'manual download' and a URL that further supports this lure. The presence of multiple PDF links within the document suggests an attempt to create a link farm or distribute further malicious content.

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=wais-+iv+manual+download In PDF document text
    • http://files.yahshigul.com/uploads/1/3/1/3/131398386/zenilitirodobena.pdfIn PDF document text
    • http://files.nadafaris.com/uploads/1/3/1/4/131406606/3150919.pdfIn PDF document text
    • http://files.quietcovetravel.net/uploads/1/3/0/9/130969999/c4c11.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/1/0432/1522/4996/files/nopeladijabatidiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4247/9007/files/68861085739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2657/9610/files/tojexulozunopebikamazana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4789/2630/files/darabokasubupojuroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/wenisob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8106/2805/files/1198925203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/69242631432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/9188962583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/30530379863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/duxavivura.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_off00004a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A5F 5072 bytes
SHA-256: 655acb6586e6675c21ba45e7a4e9a72684dad7e9782cd49daa24bd4e55311a8e
font_01_sfnt_off00005bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAE 10160 bytes
SHA-256: b4f092782536bd9ff2f39a952d7779acfac2d088c86cbfd9a5433ad21b4e9315

Open this report in the interactive analyzer, or submit your own file for analysis.