Malicious PDF — malware analysis report

Static analysis result for SHA-256 492e56505ac607c9…

MALICIOUS

PDF

62.8 KB Created: 2020-09-16 15:30:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3801a03195363f3fd82f8904c15d035 SHA-1: be6dcdb1f5b616f34c6e317af73c374fa79feb66 SHA-256: 492e56505ac607c9b5a4b5b3c1b9ff6caf0d66ac83f8a66ef5b485154eedd6af
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to known malicious redirectors or are part of an SEO link farm designed to obscure the true destination. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure, related to vehicle repair information.

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=2000+chevy+s10+4.3+manual+transmission In PDF document text
    • http://files.sachagrosselart.com/uploads/1/3/0/9/130969209/belizifimekedaxuwuzu.pdfIn PDF document text
    • http://files.cuicsocal.org/uploads/1/3/1/3/131379706/fafavagexopidoxokuke.pdfIn PDF document text
    • http://zegar.conwaycountycarecenter.com/uploads/1/3/0/8/130814017/f4347ad738b.pdfIn PDF document text
    • http://fofevim.georgipetroff.com/uploads/1/3/0/7/130775387/kalik-zojobuf-xasenibunerig.pdfIn PDF document text
    • http://files.stambroseparchment.com/uploads/1/3/1/4/131482886/38f4029d2379b9f.pdfIn PDF document text
    • http://files.platetrotter.com/uploads/1/3/0/9/130969065/675670.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8eec9695-659d-4c47-ba07-a291a326bdd0.filesusr.com/ugd/e1c37d_44924cb4f5284ea5996cf9d2fd7d1230.pdf?index=trueIn PDF document text
    • https://adeff610-8751-4cd4-ba90-c94e8c48daec.filesusr.com/ugd/cc3ca9_bc190c8a76af479ba3de140b21f707df.pdf?index=trueIn PDF document text
    • https://7a221697-c01e-4491-bd24-5d5c89f1c459.filesusr.com/ugd/6f9b04_abedc7b1175343179952340a1f01c739.pdf?index=trueIn PDF document text
    • https://a123474e-cdb3-47fd-889b-ab62db2f5274.filesusr.com/ugd/5f226b_a7a5ad0494a543049e8fdd892878ff2c.pdf?index=trueIn PDF document text
    • https://25b0d0ae-071f-47cd-9bda-c09342683576.filesusr.com/ugd/89064d_6d336c291d2d4778b814a2e6e45387cb.pdf?index=trueIn PDF document text
    • https://ae3b7f8c-a1ee-4c40-8e56-ec428a905717.filesusr.com/ugd/f2ef67_3337cd2107a34f0da8cbddf222385530.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000092c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C8 5716 bytes
SHA-256: b27dc2318619e571698facdc9b55947134bb9f9c07dc3836013fa8e3b3b4a553
font_01_sfnt_off0000a62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA62C 16544 bytes
SHA-256: fb253ac53d6417e858132a9de76bb9a8b57b651b23cd6ccf678c437eb689778f
font_02_sfnt_off0000d92a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92A 16060 bytes
SHA-256: 84d5bd19c210eb3b73ecc14096ab1e56fdfb5b80ce7ba4f0052c67c0c2b02727

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