Malicious PDF — malware analysis report

Static analysis result for SHA-256 674b8943fee4e5c9…

MALICIOUS

PDF

46.2 KB Created: 2020-08-06 11:09:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92f6199c61b1ab2645bf4b54f9a44943 SHA-1: 8dcf247df40b87fc56637b639bb3f94436ba75c1 SHA-256: 674b8943fee4e5c95e0b7071cd075d1437d2f6205fed07cef932e94305e573e1
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious sites.

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=69+things+i+wish+i+knew+before+getting+married+pdf In PDF document text
    • http://files.wppsfete.com.au/uploads/1/3/2/6/132695428/nixumununonok.pdfIn PDF document text
    • http://files.tunisian-tile-stone.com/uploads/1/3/1/6/131637014/nanarobiwi.pdfIn PDF document text
    • http://files.roadclawtyres.com/uploads/1/3/1/3/131384718/23de45e4e653cba.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/1/0432/2574/3515/files/139946979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8752/8103/files/bikadatuxujije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/26144928610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3246/8890/files/6317194129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/tafebazuteparemudax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7420/7387/files/niwidurut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8752/7078/files/50552203333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/surge_arrester_calculation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/maury_lie_detector_meme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4896/8090/files/digudiruxabepedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0617/3081/files/terminal_commands_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/36000636984.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 3

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_off000073d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D2 5932 bytes
SHA-256: 38ed8defb3b01dcf933ae229f7fe89c8dcec1e987d497e6e0e78686b6dd9033f
font_01_sfnt_off000087e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E5 10532 bytes
SHA-256: d9b08ff9ab9bd277753ee5438ef13f550f6407684ad8916ff86a1443c7ce305a

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