Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdbfc4d11911edb…

MALICIOUS

PDF

41.7 KB Created: 2020-09-18 08:06:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ab0b6f91593556d71bed7a7d716b608 SHA-1: cee97c7d6928d7cf6fa360c9b5aa8bbc59a74708 SHA-256: dbdbfc4d11911edbd3b701039ab52183ed392dad3744da159883bbd9b1d74d59
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.link/wix?keyword=cow%252Fsheep+eye+dissection+worksheet'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including 'http://midopexaw.cayliemashphotography.com/uploads/1/3/2/6/132682076/8cffd.pdf'. The document body, though heavily obfuscated, contains the URL, suggesting a lure to external malicious content.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/wix?keyword=cow%252Fsheep+eye+dissection+worksheet In PDF document text
    • http://midopexaw.cayliemashphotography.com/uploads/1/3/2/6/132682076/8cffd.pdfIn PDF document text
    • http://files.southdevonplayers.com/uploads/1/3/1/8/131871648/3602d20161be9.pdfIn PDF document text
    • http://files.adandcrews.com/uploads/1/3/1/8/131860125/03e883499baf.pdfIn PDF document text
    • http://miweliwe.foodallergiesrochestermn.org/uploads/1/3/2/6/132681268/kumesilu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8544dcae-2487-4e4b-8d02-cd96a078d17f.filesusr.com/ugd/c618e9_d8a397c13dd341129a0b0673283e825a.pdf?index=trueIn PDF document text
    • https://ff585309-dda9-4b07-8e1b-72735408aca6.filesusr.com/ugd/ff68bb_08873319cbc74109a7bd5fd01b2d03b4.pdf?index=trueIn PDF document text
    • https://5e1f0ed5-9fab-4342-a207-a6cfaf2cbf1a.filesusr.com/ugd/b90ba1_e98115fb821c44b49d06be562f77de56.pdf?index=trueIn PDF document text
    • https://5dc15c4e-1a4f-4dab-b8fa-dd193f6845aa.filesusr.com/ugd/bcb9fd_7d8198e920f0442cb1b45d3b79209441.pdf?index=trueIn PDF document text
    • https://c015748d-801e-492a-be65-5d4c1965b9f9.filesusr.com/ugd/01f9b9_1dea244ba8d8454785c2a98c1cd47a70.pdf?index=trueIn PDF document text
    • https://f079e3f3-300f-476c-a957-152683adbf66.filesusr.com/ugd/50c35f_14b86b4d48a546c78a0b2bd9b277bfbe.pdf?index=trueIn PDF document text
    • https://70fe03ef-9063-4e89-9824-381fb034ff89.filesusr.com/ugd/2f7489_14fd3394d5614e04937ab7a5eeaee114.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8407/9523/files/rebolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6547/3189/files/automobile_engineering_subjects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6434/4219/files/kefesogoxim.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_off0000657b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657B 5116 bytes
SHA-256: d5a8faaf60e7efd3ceb010e0ea0c9841dc91b9416df3654d0bf2fe1a48331e0a
font_01_sfnt_off000076ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76FF 10156 bytes
SHA-256: 1cd4e0e642b2e525ab1aa3b95c67956243b70726cbd4035792a7e20b05fd8b50

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