Malicious PDF — malware analysis report

Static analysis result for SHA-256 c11c7f715bb41134…

MALICIOUS

PDF

41.3 KB Created: 2020-08-03 09:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8941b0942d04a273d31d95e0d30009d1 SHA-1: 130545d2e99e3b24366cb48b75f4bb6e778aae8f SHA-256: c11c7f715bb41134ef3be7279b1292977bd1ac01fc54048f6053a48c8c542f7a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=worgen+druid+colors, which is flagged as malicious. This suggests the document's primary purpose is to redirect users to malicious 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=worgen+druid+colors In PDF document text
    • http://files.kindercaravan.net/uploads/1/3/1/4/131407247/65afd38.pdfIn PDF document text
    • http://files.stjohnsgladwin.org/uploads/1/3/2/6/132695746/galev.pdfIn PDF document text
    • http://files.littlestarzpreschool.com/uploads/1/3/0/7/130775400/df3d5e.pdfIn PDF document text
    • http://files.internationalcancercluster.org/uploads/1/3/0/8/130813100/a03c032.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/1/0429/3319/0823/files/57741196419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nojigepinipefonumupitos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/21940853615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/11784299483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/geometry_textbook_mcgraw_hill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/68933611754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9433/4869/files/95902465110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9745/6801/files/bifenojekoxuwixofejiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/49031049404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/zojekibatakitezug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/togosutugirorovutugetugud.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_off000056c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56C3 4712 bytes
SHA-256: 2cbce6d805424b59f3df441c709c1f9441b3e191bf295979f4a233b575067dd1
font_01_sfnt_off000066d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D3 10392 bytes
SHA-256: 79fb86a6b2faf8090566e9522f9d1391852173ca764230b9c033cf27afc01c46
font_02_sfnt_off00008a53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A53 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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