Malicious PDF — malware analysis report

Static analysis result for SHA-256 928087d9ccd732b8…

MALICIOUS

PDF

46.3 KB Created: 2020-08-23 07:48:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a3f3dea9d5e6c2e40508cb5de0e93dd SHA-1: 851e13b2ba6b64ec8c7f87883d87390ac1cb56d6 SHA-256: 928087d9ccd732b8ab4673943c70fab08a24b40335d148ed6938ea2edee0265b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects to a malicious domain, ttraff.com, which is likely used for further redirection or to host malicious content. The document body, though heavily obfuscated, contains the same malicious URL. This indicates a social engineering attempt to direct users to harmful infrastructure.

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=chipmunks+christmas+songs+free In PDF document text
    • http://nuxuni.lambersfisher.com/uploads/1/3/0/8/130813453/pajurireduvobed.pdfIn PDF document text
    • http://fofiwo.mymodernsolutions.ca/uploads/1/3/1/4/131438500/1206732.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5892/1621/files/newifizutuxutotopozedesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/himnario_adventista_del_septimo_dia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4857/4886/files/angular_8_bootstrap_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/xaranamitoruxonoxove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/58544519167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0213/4681/files/hanuman_chalisa_bengali_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4360/2080/files/bibliography_format_for_elementary_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7413/9800/files/animation_app_free_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/bbc_compacta_class_9_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/editable_chinese_wedding_invitation_templates_free.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FC 5364 bytes
SHA-256: f45e70eedd9baf9ec1275f81b7dbd04f253ca1e569c54ed79fc00bc18d66480b
font_01_sfnt_off00007c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C13 10072 bytes
SHA-256: 6b69763feb2cf99e676e796cf791ffc3c33dc2f052ab515b05f95453f3e16f1f
font_02_sfnt_off00009e7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E7A 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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