Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ce1af8a00bc0b29…

MALICIOUS

PDF

35.7 KB Created: 2020-10-02 05:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 149098088a2bff88cfe36695a21782fe SHA-1: 6dbcc5f3935a53d2de0718e2fd82c7bc9289f061 SHA-256: 1ce1af8a00bc0b29ee0c3c11e387abd4eeb4fd09fb155fdb5749f19e056aa7bd
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://gettraff.ru/pify?keyword=the+pebble+and+the+penguin+drake+gif In PDF document text
    • https://site-1037178.mozfiles.com/files/1037178/68370807156.pdfIn PDF document text
    • https://site-1037890.mozfiles.com/files/1037890/tederorolavanadumapewupuf.pdfIn PDF document text
    • https://site-1037854.mozfiles.com/files/1037854/sivoloxajoxotunuzodimusar.pdfIn PDF document text
    • https://site-1036956.mozfiles.com/files/1036956/jubomiwubativepagatiwa.pdfIn PDF document text
    • https://site-1036993.mozfiles.com/files/1036993/6306360651.pdfIn PDF document text
    • http://files.kidscreativestudio.com/uploads/1/3/0/9/130969381/902f1e.pdfIn PDF document text
    • http://todisax.pinkeypuzzles.com/uploads/1/3/1/3/131381078/2dc3a52.pdfIn PDF document text
    • http://files.lifenuts.org/uploads/1/3/2/6/132683154/korulugi.pdfIn PDF document text
    • http://files.vizadvantage.com/uploads/1/3/1/6/131637656/fegutom.pdfIn PDF document text
    • http://files.bosticklawoffice.com/uploads/1/3/1/4/131453967/36b381.pdfIn PDF document text
    • http://files.friedbergrealestateschool.org/uploads/1/3/0/7/130776299/wadabixeba_xadanosoxe_nekigewumafidot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2dc1f993-1650-492b-99df-35b51a2e4b02/vikotinojopevufa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd937ccd-625a-4fbf-8506-3ee3bea5afdc/32966492078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31aa2d00-c247-4eb2-83fd-a193e7e825ec/73140229544.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5459df95-1149-4b65-93b0-c9a8016f06fd/vibigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0510c398-2245-4555-af23-a651ec81dda1/26519740102.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_off00004c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2B 5280 bytes
SHA-256: af3ada90cb822c0862190005aee50b1fafeb16e332590a701e3d8ea8f2b9fc78
font_01_sfnt_off00005e16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E16 10608 bytes
SHA-256: fc0fcc076e0da318341b7c87b7a1fbebb588147d622e75097d68bd0f556f09a9

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