Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c7372b4d2a31dcd…

MALICIOUS

PDF

43.0 KB Created: 2020-10-02 09:18:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 858e933a3e202b676dc67bf75bf4e518 SHA-1: 135512b2a3328f15f8da06f22a6934d524a066d7 SHA-256: 6c7372b4d2a31dcd519a1a0b500842fc5c104efbb2e779017681fb095054ccd2
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/strik?keyword=technical+analysis+for+the+trading+professional+pdf+free+download In PDF document text
    • https://site-1039156.mozfiles.com/files/1039156/33829169915.pdfIn PDF document text
    • https://site-1040312.mozfiles.com/files/1040312/koretaxebiraf.pdfIn PDF document text
    • https://site-1037055.mozfiles.com/files/1037055/dazogagebuleteresuwup.pdfIn PDF document text
    • https://site-1041785.mozfiles.com/files/1041785/73709183705.pdfIn PDF document text
    • https://site-1036815.mozfiles.com/files/1036815/75761304387.pdfIn PDF document text
    • https://site-1037156.mozfiles.com/files/1037156/vewuderorafawox.pdfIn PDF document text
    • https://site-1037019.mozfiles.com/files/1037019/rizexipibufamilowepo.pdfIn PDF document text
    • https://site-1038492.mozfiles.com/files/1038492/71570583579.pdfIn PDF document text
    • http://files.laverdasthoughtsandmemories.org/uploads/1/3/0/7/130739510/1438329.pdfIn PDF document text
    • http://files.carlosorta.com/uploads/1/3/2/6/132681356/3606118.pdfIn PDF document text
    • http://loxog.mrgtoolanddie.com/uploads/1/3/1/4/131453130/devela.pdfIn PDF document text
    • http://soviko.lindsayxiongdesign.com/uploads/1/3/0/7/130776795/paliruwukupiwu_midotelugez_xisebivas.pdfIn PDF document text
    • http://moporof.straleystudios.com/uploads/1/3/0/9/130969723/3749632.pdfIn PDF document text
    • https://site-1037860.mozfiles.com/files/1037860/kuripezaj.pdfIn PDF document text
    • https://site-1036823.mozfiles.com/files/1036823/nizezipejuz.pdfIn PDF document text
    • https://site-1036872.mozfiles.com/files/1036872/81206343180.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00006940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6940 5560 bytes
SHA-256: 1539a3935facdad2085c0309664097be6e097a390d156791f8f4a262cabc228d
font_01_sfnt_off00007c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3E 10072 bytes
SHA-256: 5c767fe7ffd028f6cb7c59ec7bf0de3766681bf12944da42851a113cbcce8229