Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e5f03e7e7dc5a8…

MALICIOUS

PDF

42.0 KB Created: 2020-08-19 01:11:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 574b6c6c38818e732391936f50975dae SHA-1: 80603e4f8da5ca95092299691c2f9ad743687af3 SHA-256: e0e5f03e7e7dc5a8886cbaecf61ebc0293129be66588bf0e1dda8eb564a217d9
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'allowances worksheet definition' and a URL that matches the redirector. The PDF_SEO_LINK_FARM heuristic also indicates a large number of external links, many hosted on Shopify, likely to obscure the malicious intent. The primary malicious IOC is the redirector URL.

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=allowances+worksheet+definition In PDF document text
    • http://nuwixunun.nmctkd.com/uploads/1/3/1/4/131438137/5394653.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/1/0431/2665/3077/files/is_pivot_animator_safe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/jurobeferilemedubejer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1282/4993/files/xojesanidamovilam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/62291383704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/86514955492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/a1294_transistor_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5674/3079/files/23537698112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8361/2831/files/puxikesowuxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3358/2998/files/86641545710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/moxufavoxemebinopegojivum.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 1

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_off00006654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6654 5256 bytes
SHA-256: 5f0b21161cc1c550483fb426673664f12eaf17c47d63966d53cd54bf9be9271f
font_01_sfnt_off00007833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7833 10412 bytes
SHA-256: 8ca5ea0d8bfa61f8fb7883ab866629c272a63bf297afe874b66f02ab1b9463d1

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