Malicious PDF — malware analysis report

Static analysis result for SHA-256 00be0815c0bd9d4d…

MALICIOUS

PDF

45.6 KB Created: 2020-07-31 21:02:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce3e714ff9ff47813f8e4b7df98078af SHA-1: 592744399715ba6ce80e87e52ba550197514943d SHA-256: 00be0815c0bd9d4d813c7bf054079948154f18617fed7b7b26d4831724775f8b
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as a "link farm" for SEO purposes, with many pointing to benign Shopify URLs. However, a critical heuristic identified a malicious redirector URL, https://ttraff.cc/wb?keyword=waec%20chief%20examiners%20report%202017%20pdf, which is also present in the document body. This redirector is likely used to deliver a malicious payload or phish for credentials.

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=waec%20chief%20examiners%20report%202017%20pdf In PDF document text
    • http://files.vikisimpson.com/uploads/1/3/2/7/132740586/6752333.pdfIn PDF document text
    • http://files.jamesawatsonjr.net/uploads/1/3/1/4/131453588/7a7f79bdb59.pdfIn PDF document text
    • http://files.sarahmulderpsychology.com/uploads/1/3/1/1/131164431/d31963e647e9f1.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/1/0432/4248/7963/files/zadalorikinimupotategu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3535/0424/files/44255335300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2176/9627/files/24364423179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/tevigonuwuxifox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/27389209876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7510/7990/files/vibebivejiwogajopogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3640/0037/files/bazojup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9583/5295/files/pipukufikadakeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0933/files/watatizilunexokowemerabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7764/0093/files/xiramuwetelenupata.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 4

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_off0000745d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745D 5852 bytes
SHA-256: c222820c45bca63b0a02ebe53d49e71405c0a29db04e1f8a1c4dbbf2cc150a6e
font_01_sfnt_off00008841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8841 9660 bytes
SHA-256: 3e995868a73f9f396973dc7f59cbe1594f13f06c535d476dec39fda06d05b164

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