Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bd54b622864c649…

MALICIOUS

PDF

47.4 KB Created: 2020-09-18 20:24:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a8a1dedbc7f78261cd8bf7b9d572205 SHA-1: d05c75bb78c9b45b84453881b64ad48b277d8f04 SHA-256: 8bd54b622864c64951b62a1d753995d98a1bfca4387df2803da96db8d4daeac0
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically `https://ttraff.link/wix?keyword=superfighters+full+screen`. This indicates the document's primary purpose is to redirect the user to a malicious site. Additionally, the PDF was flagged for containing a mass external PDF link farm, suggesting a broader SEO poisoning or spamming campaign. The document body contains the suspicious URL, reinforcing the lure.

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=superfighters+full+screen In PDF document text
    • http://files.thestrongfamiliescommission.com/uploads/1/3/0/7/130739651/senix-xofevep.pdfIn PDF document text
    • http://files.mrsdonahue.org/uploads/1/3/1/3/131383777/wifazamoxikijir.pdfIn PDF document text
    • http://files.pedallingware.com/uploads/1/3/1/3/131397946/bodabafizamigefukot.pdfIn PDF document text
    • http://ketaka.best-window-tinting-in-miami.com/uploads/1/3/0/7/130738870/wokagakuvog.pdfIn PDF document text
    • http://files.create-diy-online.com/uploads/1/3/1/6/131606059/87ebb04f94e17.pdfIn PDF document text
    • http://files.davidstaniforth.co.uk/uploads/1/3/2/6/132683267/127812.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/1/0427/4615/1078/files/zareg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2273/5765/files/aia_medical_insurance_claim_form.pdfIn PDF document text
    • https://1322cc03-542c-4847-ae35-a0983b3ffb03.filesusr.com/ugd/97aff7_ca2bc0b3e12942fcba8f7a0f6dd97558.pdf?index=trueIn PDF document text
    • https://ba824262-d590-43c1-8b79-1990d3d1e177.filesusr.com/ugd/ee9d3f_78a610de07cb4df2a214b223b916c857.pdf?index=trueIn PDF document text
    • https://96ac6618-e0eb-407d-937c-8c7860dc79c2.filesusr.com/ugd/99afdc_e9e1ed05b8ad4c61a99dfadf32713b26.pdf?index=trueIn 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 8

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_off00007c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2B 5172 bytes
SHA-256: dd3cde20e2ce30d7515d0b23d2ed3387cc6cd28d24b356bed7b8b35541746b4d
font_01_sfnt_off00008dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC7 10304 bytes
SHA-256: 0a9322bb03f52298818c124d643e1d2ca9501ac81bd3221fd7df6d7936d32af6

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