Malicious PDF — malware analysis report

Static analysis result for SHA-256 11179e92bce5edce…

MALICIOUS

PDF

42.8 KB Created: 2020-08-24 03:24:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 822a8d25adbeeea638e6210b52ca3a01 SHA-1: 7e9441fd878d9f579417d19b940111708890f977 SHA-256: 11179e92bce5edceb0cbb1eda3cbe8728898907178ce8ac62bfd59b31f01d868
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links that redirect to a malicious URL, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure for educational materials. The ML classifier and critical heuristics strongly indicate malicious intent, likely to lead the user to a compromised site or download further malware.

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=commutative+property+addition+worksheets+3rd+grade In PDF document text
    • http://files.tampa-works.com/uploads/1/3/0/7/130738919/nopuza.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/1/0431/3432/0794/files/97698159419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6182/1083/files/86940388524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/46143793457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7652/5988/files/accounting_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9769/4109/files/40245194007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/zaxezobodemuwim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0429/6348/files/jurekolukopewejuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5289/1297/files/3571224697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2857609843.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_off00005406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5406 5728 bytes
SHA-256: 51d6b0ec2d0cefbec15c6cbcaab01394c18311c62c3a4eb1e2fa74f211494039
font_01_sfnt_off0000677f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677F 9788 bytes
SHA-256: 57c7a7e19b734cdff207a042f6f03df77eb1aecc29b5b1ce627d2c8dbb4b0f9f
font_02_sfnt_off00008940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8940 16116 bytes
SHA-256: edc33fe94617b35fa5734827a91efdc9665031ac3a5a8b8018a6396f4204b3d2

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