Malicious PDF — malware analysis report

Static analysis result for SHA-256 4766d852b3e71f79…

MALICIOUS

PDF

72.6 KB Created: 2020-08-01 11:01:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c6889d214928e3c9ba3d67316724485 SHA-1: 74e1f6ea8153ded574b26671f186069e8cdbeb11 SHA-256: 4766d852b3e71f79b5bc2e3ffdef7f45398997be15403fd127411624ecc55919
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector, ttraff.com, which is likely used to deliver a second-stage payload. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, suggesting an attempt to manipulate search engine results or distribute malicious content broadly. The presence of invoice-like language further supports a phishing or scam-related attack pattern.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=memorandum+for+record+army+example+wlc In PDF document text
    • http://files.goodworthclatford.com/uploads/1/3/1/8/131856293/6254736.pdfIn PDF document text
    • http://files.maupintown.com/uploads/1/3/1/3/131384492/528b155d2a5229.pdfIn PDF document text
    • http://files.thecabinetart.com/uploads/1/3/0/7/130775027/lurodalujug.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/1/0433/0687/7080/files/31056735454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2823/3887/files/bibemiroviwivurojowewoveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1728/0408/files/36623695948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/vikivafivazeluwiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/9986784296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0003/5485/files/zarulesijadabokafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/polof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/kosezimipulono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8717/5588/files/36534736604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xodowowesibaxen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4981/files/7737232333.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c09f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC09F 5388 bytes
SHA-256: 6c34f46c1eae187b5ef8bba854a7b40227c22239939beb3235fd3a4cfabc0efc
font_01_sfnt_off0000d308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD308 14416 bytes
SHA-256: c6df31731d17da765508dd7ab4c4a2f45deb822e4f71a6dc2dcca08217a92f58
font_02_sfnt_off00010099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10099 16060 bytes
SHA-256: 5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330

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