Malicious PDF — malware analysis report

Static analysis result for SHA-256 0efd86807ddd6868…

MALICIOUS

PDF

43.5 KB Created: 2020-08-24 04:20:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 677504dbbabee7ecde827f8480785c2d SHA-1: 783958bcd4967a2798d27d8825c6adf707b59b12 SHA-256: 0efd86807ddd6868904ff128a57acbc9194860c1f5ac9f3246aa0b0d83042a85
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or to download further malware.

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=android+espresso+wait+for+view+to+disappear In PDF document text
    • http://files.mytornradiofud2modelproject.com/uploads/1/3/1/3/131380337/jaxexiditapid-tusux.pdfIn PDF document text
    • http://files.counselingservicesknoxville.com/uploads/1/3/0/8/130813769/polozixod-sozenavisovux-tufajobudozo-voluju.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/1/0437/5461/9041/files/tonolisenis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/77886554917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8948/4189/files/zevab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0246/7228/files/emerald_tablets_of_hermes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8357/0078/files/chippewa_flowage_fishing_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/3164772618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7368/1061/files/53651050401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/eq_paladin_spells.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4486/4149/files/learn_french_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4809/2327/files/13735178374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/13730418420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8257/9110/files/zugafitade.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 2

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_off00006af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF0 5144 bytes
SHA-256: 15fa21d4dfb75fd4975431f850191ab5fb7e34acc330d1c1c87d780ca3168a99
font_01_sfnt_off00007c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C94 10676 bytes
SHA-256: 1e92e27ecccaf24dc8acfaf08faea44c26bfc1c18f7df16796f5a45d049fe520

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