Malicious PDF — malware analysis report

Static analysis result for SHA-256 93833567c521f66c…

MALICIOUS

PDF

42.1 KB Created: 2020-08-03 23:34:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01a981029b489e98fb393be6e24fb076 SHA-1: dbde7c2116b032a9b499389f1c315a9c012ec7dd SHA-256: 93833567c521f66cc4c887ab1c5aaf3a357640321825696057f2a9161a680608
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a common tactic for SEO poisoning or redirecting users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/wb?keyword=transitional%20words%20and%20phrases%20pdf%20answers, which is likely intended to lure the user into clicking it. The presence of many links hosted on cdn.shopify.com, while some are marked benign, suggests a link farm strategy.

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/wb?keyword=transitional%20words%20and%20phrases%20pdf%20answers In PDF document text
    • http://files.waltonsviewfarm.com/uploads/1/3/2/3/132303238/lodalep.pdfIn PDF document text
    • http://files.demirandaguitar.com/uploads/1/3/1/8/131871690/fokodibavuf_zogovisum.pdfIn PDF document text
    • http://files.willhumegames.co.uk/uploads/1/3/1/6/131607063/3329941.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/lekefokatonerosabiwifeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9966/0194/files/42912060595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/45169097307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/gawumegusiritox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sagomowaroperovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/livanele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/gelixesirebali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/44727650388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/tifogisozufesaxob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/jivakavokefises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/gunirazudenogaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0849/9618/files/xofunalotefumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/39076799153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4986/8712/files/dark_cloud_weapon_guide.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_off00006618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6618 5168 bytes
SHA-256: 59c6de7436364d6a69c019e61699d8fd8e763b1b5a4f422c48a73a2842c16db3
font_01_sfnt_off000077b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B8 10472 bytes
SHA-256: 43d774038ffc7a5d67e6a9d5db226dfb8f43926bc014008f07ad7016428cbc61

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