Malicious PDF — malware analysis report

Static analysis result for SHA-256 12375ddfe2192cdf…

MALICIOUS

PDF

60.9 KB Created: 2020-10-03 09:14:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d55d3b7bf5b5aba36cdb2e5fb022ba07 SHA-1: 90ed04c7ceff6602bbd2899a036366ebc51d10af SHA-256: 12375ddfe2192cdf29ce871df5db1bf2fc53b50af366aca45f7ba019f49d07c8
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://gettraff.ru/strik?keyword=rimworld+best+guns In PDF document text
    • http://files.royaleventshuntervalley.com/uploads/1/3/0/9/130969461/boporiw.pdfIn PDF document text
    • http://files.mycityadd.com/uploads/1/3/1/1/131163879/b7d68c63bac3a.pdfIn PDF document text
    • http://nukov.uwwatersheddynamics.com/uploads/1/3/1/1/131164250/af9e36beab293.pdfIn PDF document text
    • https://site-1039002.mozfiles.com/files/1039002/92685103609.pdfIn PDF document text
    • https://site-1037827.mozfiles.com/files/1037827/kujapemebeluruvukib.pdfIn PDF document text
    • https://site-1038844.mozfiles.com/files/1038844/21938691241.pdfIn PDF document text
    • https://site-1037169.mozfiles.com/files/1037169/73802408288.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/7c64bd51-6f25-44cf-8f3f-dcd84225c604/4799430525.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf66c876-62d3-4b1a-9126-1248c0d886f3/risadazi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/096fa02c-15e0-4957-9fc3-82040a93fdcd/gogapagatabokepuboveti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30fd896f-96f2-4039-b2f5-b7ce091e91df/fixizezubopazivaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f04cb724-adc1-4a63-add4-1184f9f7bd62/nodakarepaporexurokokazat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd5c5cf0-1efb-4485-ac1b-6e444acd4d91/bopalapagu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79e68c0a-6f32-4f39-bb70-b09fdc09b9bf/97774591700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb19bd96-58b7-40f1-8681-c0db8fa1f645/55106895355.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_off0000b09a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB09A 5176 bytes
SHA-256: 465f362ce1ca02d3ab6feb3092cd0ef5fcc1c9c0680f2521439ebee7359dbe20
font_01_sfnt_off0000c22e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC22E 11108 bytes
SHA-256: 324a108326951bd61ef4ebf5625ca2707349d2b09ab65d101e3910091c3fde08

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