Malicious PDF — malware analysis report

Static analysis result for SHA-256 97e51e422d62dc32…

MALICIOUS

PDF

34.9 KB Created: 2020-10-06 10:17:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 9dbdd033e201615ae4118a0f860af3b1 SHA-1: d44ede205359fb4455a314db979d8a19b2978d68 SHA-256: 97e51e422d62dc32b73c6033cf2d4ba3e635ff99d5ca19ea936ae6bd9b83a2ce
184 Risk Score

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://ggtraff.ru/strik?keyword=the+manor+at+carriage+farm In PDF document text
    • http://files.otwayyoga.com.au/uploads/1/3/0/8/130873996/e289c5b.pdfIn PDF document text
    • http://files.nalinikrishnankutty.com/uploads/1/3/0/9/130969469/ridorigu-tidajuvini.pdfIn PDF document text
    • http://files.eurocasta.org/uploads/1/3/1/8/131871674/dezale.pdfIn PDF document text
    • http://wezusa.fordsauto.net/uploads/1/3/1/6/131637352/7082163.pdfIn PDF document text
    • http://files.silvermineguild.org/uploads/1/3/0/7/130775590/3839634.pdfIn PDF document text
    • https://site-1037149.mozfiles.com/files/1037149/muduvasoxijubetevujoze.pdfIn PDF document text
    • https://site-1042539.mozfiles.com/files/1042539/minakobalasukivusazev.pdfIn PDF document text
    • https://site-1037268.mozfiles.com/files/1037268/sorovun.pdfIn PDF document text
    • https://site-1039162.mozfiles.com/files/1039162/54679548436.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/1/0440/7522/1142/files/tazumupobom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/2906/5628/files/xizigadamitasimasadax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4244/7261/files/alton_baker_park_kayak_rental.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1250/5243/files/software_testing_a_craftsmans_approach_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/af_full_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7483/files/minecraft_more_ores_mod_1.8.9.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CAD 5032 bytes
SHA-256: c13ee709658f638940b997ad9332757141ea6209c8c7ddd1cd6d29900afb33fb
font_01_sfnt_off00005da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA0 9808 bytes
SHA-256: d6054b522292d22edd638f650aeac5bff3decc5afaa7cac1a257319ade8dd91d

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