Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e691ef01750c1fc…

MALICIOUS

PDF

35.4 KB Created: 2020-09-17 22:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a850076a2953631d43c7a4ab7ec8f552 SHA-1: 08cbd1837ce8d3614c1c71ee1b1ca5d8df5e58dc SHA-256: 7e691ef01750c1fcf995d11f61a0583978487f94364a3f6efed1789407444983
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and SEO link farms, indicating a phishing or scam attempt. The primary lure, 'Dau acq 202 test answers', directs users to a malicious redirector URL. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to lead the user to malicious content, likely for credential harvesting or malware distribution.

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.me/wix?keyword=dau+acq+202+test+answers In PDF document text
    • http://files.legendsgolfclub.org/uploads/1/3/1/3/131383665/6087186.pdfIn PDF document text
    • http://files.blythetierneydevermakeup.com/uploads/1/3/1/4/131406181/xagixur.pdfIn PDF document text
    • http://zixapo.industryumc.org/uploads/1/3/1/4/131454207/5709541.pdfIn PDF document text
    • http://files.laanimal.com/uploads/1/3/1/4/131407742/zuromuj_kozitiv.pdfIn PDF document text
    • http://vinajomaf.wilsonhypnotherapy.com/uploads/1/3/1/4/131437308/rabiba-vejififawe.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/1/0432/8564/3420/files/sizukajefekezolopiwetuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/51685009673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/13870250408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7503/5541/files/nojuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8137/5648/files/35892080962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6300/8664/files/kijeta.pdfIn PDF document text
    • https://bb925647-fd47-436c-a2c8-fbead4b283bb.filesusr.com/ugd/6f58fb_a25faa338a504f26a79d0df0acc486b2.pdf?index=trueIn PDF document text
    • https://d56e4447-a3eb-42dc-b6a4-ef6dda2d412c.filesusr.com/ugd/c722c2_d3ff32b265ef4ef489e68b257ca630b3.pdf?index=trueIn 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_off0000439a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x439A 5252 bytes
SHA-256: 5cb67046362ae67119b5426e80b41f1a61d73a440841038e57be9df386a7ed27
font_01_sfnt_off000055a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A3 14120 bytes
SHA-256: 490bbf744cd0473b2f20b0a3e83e333f63ba8b725cbd7f874d5dccff9074de52

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