Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ab5a500f1967e9…

MALICIOUS

PDF

37.8 KB Created: 2020-08-05 23:39:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92ded100baa1f4ef9f6e90e9f4b3e76f SHA-1: 0a3271dbb6ee8dd7487b3131617de68982c52b37 SHA-256: 04ab5a500f1967e9a6461d2b0ec2cad8d38350cb43e046a8f70b33ef15fca56c
194 Risk Score

Malware Insights

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

The PDF contains a link farm and redirects to a malicious URL, masquerading as a catalogue to deceive users. The ML classifier strongly indicates maliciousness. The embedded URLs suggest an attempt to distribute or redirect to malicious content, likely leveraging a link-based social engineering tactic.

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/pify?keyword=skf+ball+bearing+size+catalogue+pdf In PDF document text
    • http://files.rozanalee.com/uploads/1/3/1/3/131380729/2604032.pdfIn PDF document text
    • http://files.chocolateexpressonline.com/uploads/1/3/1/1/131164009/1534059.pdfIn PDF document text
    • http://files.willowcourtstables.com/uploads/1/3/0/7/130739419/peworo_sosikidak_zofopupuk.pdfIn PDF document text
    • http://files.airbrushinggourds.com/uploads/1/3/2/7/132712306/4199266.pdfIn PDF document text
    • http://files.yogawithieva.com/uploads/1/3/1/4/131438071/batedul.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/1/0440/1355/1781/files/79784289311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mikawewetekiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8987/0491/files/kagotutiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3431/8760/files/kufegelunifinamujimur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7977/files/zegoribazaweraganonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/14399328137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0003/5485/files/fazemawoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2616/9503/files/how_to_declare_an_arraylist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/81579640873.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56F4 5680 bytes
SHA-256: 13e47ad7be0f44a5a6c0b4d42288a07af957d6fae1456161b2dce679f80e7f12
font_01_sfnt_off00006a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A64 9428 bytes
SHA-256: 63de808aaf1a49e523e5e9be5eaa21a8b87c5178e285d92ee2a0d5425a5e2291

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