Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1884e82038e83bf…

MALICIOUS

PDF

44.3 KB Created: 2020-08-12 22:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bea2dd785bad9e48a865d5d30673069 SHA-1: 311ce1b513fbf4068214f28d63882ab1040581b8 SHA-256: b1884e82038e83bf2894b739663075d72f384508b60554b6ce43813a5d7ea6b9
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised as a search result for ebook readers. The document also contains a large number of links to external PDFs hosted on Shopify, likely part of a link farm to improve search engine ranking for the malicious redirector. No scripts were extracted from this sample.

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=what+s+the+best+ebook+reader+that+supports+pdf+and+epub In PDF document text
    • http://files.darrennixon.com/uploads/1/3/1/4/131437576/xuxopawax-sudeja-vobovuragiboj.pdfIn PDF document text
    • http://files.createeducate.com/uploads/1/3/0/8/130814605/jenonezoxu.pdfIn PDF document text
    • http://puvug.greenworldwriting.com/uploads/1/3/1/4/131409090/7709274.pdfIn PDF document text
    • http://files.dunnclowns.com/uploads/1/3/2/8/132814050/6754353.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/1/0432/0506/6913/files/jekatalisenaxemurep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0933/4696/files/bikavexanuxele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1094/8254/files/bigekivofaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/1040647460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/vigirosim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/zuzabinevoduguwivirelasun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3740/8936/files/tazasabumevukuzijinunabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzawubemamomavokam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0891/5613/files/kexefavofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1761/7057/files/xiwanemefakusodebed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/soncino_talmud_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/87892905676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4141/5587/files/25977566799.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_off00006e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E08 5312 bytes
SHA-256: 9751ee0739be9d1536e40758cd2f27812348ac46510c2890ae2953dbd0e55298
font_01_sfnt_off00008015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8015 10500 bytes
SHA-256: 5e8e1538af33eb6224fe7435eaa1874695f68996bef4c0963506b3fefb57c200

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