Malicious PDF — malware analysis report

Static analysis result for SHA-256 118dad8004edb745…

MALICIOUS

PDF

44.9 KB Created: 2020-11-09 03:28:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 2e7cb636558efdcaf86a850e1767ff48 SHA-1: dc49a4d42d209a5178b2ef2894b0370ffdedcec0 SHA-256: 118dad8004edb7454c27b9bb5d1f477bb0b92e3a82b7add5978ab2039dffb991
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://traffking.ru/123?keyword=shawnee+ymca+swim In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388293/normal_5f94425619736.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5f8a0190ebf1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392668/normal_5f9b697978322.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365594/normal_5f87836148675.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/xiluvelu.pdfIn PDF document text
    • https://deximuxinudob.weebly.com/uploads/1/3/0/7/130739142/siloviwewibivuse.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://mepuzafasaw.files.wordpress.com/2020/11/megaman_fan_games.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/van_buren_elementary_school_yorba_linda_ca.pdfIn PDF document text
    • https://jojisilom.files.wordpress.com/2020/11/bhagavad_gita_in_kannada_download.pdfIn PDF document text
    • https://buvuwadozov.files.wordpress.com/2020/11/42969793533.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/89582053228.pdfIn PDF document text
    • https://tobaluli.files.wordpress.com/2020/11/injustice_hack_download.pdfIn PDF document text
    • https://xejozowezan.files.wordpress.com/2020/11/68301303527.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E15 5208 bytes
SHA-256: d7fdced5a381a3a4953204d2d766db6916d2336fcfee37131b2c1a43af3b38a2
font_01_sfnt_off00007fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBD 11740 bytes
SHA-256: 7c079b38a8d31707313829d57afe7e79a7dae2d0f6368c6167b34a7151482f56

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