Malicious PDF — malware analysis report

Static analysis result for SHA-256 c153ee0ee0e470ee…

MALICIOUS

PDF

39.2 KB Created: 2020-10-07 13:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 29b36f683e561c1848076375040a4921 SHA-1: e1caf446ed401f98170195a922d84ebf0d04e10c SHA-256: c153ee0ee0e470ee5eca77c9cd4eef97afcf50446c25defd704b187ee78d5c0f
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=what+does+to+steer+me+in+the+right+direction In PDF document text
    • http://jijej.dinahsdreams.com/uploads/1/3/0/9/130969027/sapebasabexixopomub.pdfIn PDF document text
    • http://mekaru.peacemedie.com/uploads/1/3/2/7/132712116/taxete_rutogejozizixir_tufufoko_wovapoxo.pdfIn PDF document text
    • http://files.living-simply-nourished.com/uploads/1/3/2/6/132681066/xazijixulowinam.pdfIn PDF document text
    • http://files.oldbootinnstanforddingley.co.uk/uploads/1/3/1/4/131438353/bumaguxaxu.pdfIn PDF document text
    • http://xanujarud.michaelmackail.com/uploads/1/3/0/8/130814229/pizexa.pdfIn PDF document text
    • https://site-1036861.mozfiles.com/files/1036861/3165781020.pdfIn PDF document text
    • https://site-1037189.mozfiles.com/files/1037189/gagugodulofefamotufisem.pdfIn PDF document text
    • https://site-1038332.mozfiles.com/files/1038332/tifupabavedufufuku.pdfIn PDF document text
    • https://site-1036686.mozfiles.com/files/1036686/48805238601.pdfIn PDF document text
    • https://site-1038729.mozfiles.com/files/1038729/vowizejasutuluropuwawos.pdfIn PDF document text
    • https://site-1039143.mozfiles.com/files/1039143/pafudefirasokiwamamek.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/1/0434/1402/8450/files/beautyrest_silver_luxury_quilted_memory_foam_mattress_pad.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_off00005e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E78 5336 bytes
SHA-256: dc08d25272a52908956d0eedea8ebf20d50278f2c3166e91428d65c96654f7e7
font_01_sfnt_off0000707e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707E 9304 bytes
SHA-256: 5ef56409d16489e92a666d4d3de828313381ce2970105430e59277a09ce52ee0