Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c7d03a78a85fb1b…

MALICIOUS

PDF

39.7 KB Created: 2020-08-01 21:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a072069eba4afc116fec9ef9b5cef93 SHA-1: 7aadb67356cf077a5f3b88df30cb04609ac9e6c2 SHA-256: 7c7d03a78a85fb1bbee0592013648c7681cf4a022ec70fb7409e51cefeb327e5
234 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector designed for SEO spam and phishing lures. The document body, though heavily obfuscated, contains a URL that matches the redirector pattern, suggesting a social engineering attempt to trick users into downloading potentially malicious files. The presence of numerous links to PDF files hosted on Shopify and other domains, combined with the redirector, indicates a link farm or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=gta+sa+trainers In PDF document text
    • http://files.pictonlittletheatre.com/uploads/1/3/1/4/131453402/nafasaxujofusaj.pdfIn PDF document text
    • http://files.bhi5.com/uploads/1/3/1/4/131408415/xotesurimix.pdfIn PDF document text
    • http://files.glenkeith.org/uploads/1/3/2/6/132681409/b7d2a94a1.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/1/0428/9835/8432/files/94448736580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2950/files/nigaburo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/74080285961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/ropimepazofatefaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3986/4485/files/24179602936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/15287602082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/17971560155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/23664266170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/ninologezixetajo.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_off00005f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F00 4676 bytes
SHA-256: 81f5b373b1b84a07d929c33bc13a174ae83217778067a946f5861591d37b84a3
font_01_sfnt_off00006ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF7 10420 bytes
SHA-256: 3e8f4bdecb9e0d8d22dd6f056218211cd02f4461d99f75c583d50299df8c681a

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