Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f744e89e8df0834…

MALICIOUS

PDF

50.1 KB Created: 2020-07-29 22:53:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 645b01d0b8dc3fc0f4794e61572ac758 SHA-1: 372db87fc7f7e557c3f097679e28b6ab52434600 SHA-256: 6f744e89e8df0834c3fce935f61196183091f9bc2d4802e597512d2ad4937427
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL designed for SEO-based phishing lures. The document body, though heavily obfuscated, suggests a lure related to educational or application materials. The presence of multiple links to external PDFs, some of which are hosted on potentially compromised Shopify stores, indicates a campaign to distribute further malicious content.

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.com/pify?keyword=abituriyent+jurnali+pdf+2020 In PDF document text
    • http://files.youuoyrecords.org/uploads/1/3/1/3/131383510/tixijig.pdfIn PDF document text
    • http://files.bakingbeast.com/uploads/1/3/0/7/130775145/jarijilaxokerizo.pdfIn PDF document text
    • http://files.princetonequestrianleague.com/uploads/1/3/1/8/131856318/zokazenete.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/36283751979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0982/5176/files/2271823595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2368/6056/files/10154986294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/mazetolukigusarugipogeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/fosomigewexagalanudeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/78647185830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/kazafekose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9456/4252/files/799707588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/79523463421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/xugesuwutikufinijiseluz.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 6

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_off0000859b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859B 5208 bytes
SHA-256: 59ab181bbd92ce206f3069d541585c8001ce869cd7c973ccb4756287a70ff988
font_01_sfnt_off00009762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9762 11288 bytes
SHA-256: c0e43f3bbbb728e2a7666dc08fa2a732005cb1eba8372f26cd4badd5208d9ffd

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