Malicious PDF — malware analysis report

Static analysis result for SHA-256 63c6cd37e0875194…

MALICIOUS

PDF

44.4 KB Created: 2020-08-14 15:35:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e03abd563ba92b5b0943ae490700c1a SHA-1: b2580a81249ed616785f939b6da931bc2a696ad3 SHA-256: 63c6cd37e0875194a2faec1ce3c61901caecb8ce4471ce006e1f245966e71c44
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting it is a template, and the presence of multiple Shopify links indicates an attempt to create a link farm for SEO manipulation or phishing. No scripts were extracted, but the overall structure and link analysis point to a malicious redirection or phishing attempt.

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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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=1+inch+binder+spine+insert+template In PDF document text
    • http://files.carolrivers.com/uploads/1/3/0/7/130774990/1132181.pdfIn PDF document text
    • http://files.michaelmorrisnz.com/uploads/1/3/0/9/130969543/316761.pdfIn PDF document text
    • http://files.museumtrustee.org/uploads/1/3/0/8/130813757/fugole-dudanalenoxum-numotise-pawuxanobopivi.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/1/0429/6874/4099/files/accounting_basics_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1274/2555/files/jozidigebezosolaxelev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/42341316824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3866/2053/files/12259009416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6393/4105/files/jemonaxiguxero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6663/0037/files/sukikumizusugetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9371/1265/files/pezedeluwodiragugafon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9041/0658/files/zojomar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/63084184358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/dazipabofom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5585/7315/files/27140171859.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7044 5412 bytes
SHA-256: 95d0a89cfcf6a9ac0c5f676296e51219aa8502bd1e472f2d99c9e3bebe736094
font_01_sfnt_off00008268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8268 10060 bytes
SHA-256: 66c7255e2dbb20aef31c654ad39f20d0a51091e9fc4537e7bf2f4cbd31c0939f