Malicious PDF — malware analysis report

Static analysis result for SHA-256 f920f84a18e20194…

MALICIOUS

PDF

48.7 KB Created: 2020-10-14 20:39:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f3f7df933beb72d7b41f389d2ac2038f SHA-1: 312bf537e68af3bdb43e7e1e72d4f4d2b3fd2020 SHA-256: f920f84a18e20194224cc6664fec8a3359178cf0862d1693b445287aff09764c
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://ggtraff.ru/123?keyword=woody+woodpecker+episode+guide In PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/1d44b872.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/jixidused.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/fe19c4.pdfIn PDF document text
    • https://site-1043053.mozfiles.com/files/1043053/suluguwumemanepukidi.pdfIn PDF document text
    • https://site-1037152.mozfiles.com/files/1037152/dizititova.pdfIn PDF document text
    • https://site-1044155.mozfiles.com/files/1044155/saguzapixisadi.pdfIn PDF document text
    • https://site-1039351.mozfiles.com/files/1039351/mekiju.pdfIn PDF document text
    • https://site-1036635.mozfiles.com/files/1036635/tiroxenakikozupik.pdfIn PDF document text
    • https://site-1042205.mozfiles.com/files/1042205/4755541016.pdfIn PDF document text
    • https://site-1039153.mozfiles.com/files/1039153/demaxipiderubavako.pdfIn PDF document text
    • https://site-1040297.mozfiles.com/files/1040297/38046779602.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/506d2a14-726b-4836-897a-0f913f8e5314/moxazasizunavig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6169b43-89a9-4840-9c46-769af21cd7dc/lovexokolug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f741e37f-b799-4950-b553-0511a7caf2f5/divefikafi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f375ece7-918a-4d60-8ba3-8e00e96ad8e0/58975376902.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adc61502-f5c3-4f2b-bc75-4f59430ae8cf/dirikakozawuje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f85ac30c-c662-444d-89cb-10ee3371ae63/81125862138.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/195f0f4c-e766-4697-a926-a3ad62005701/pemik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7888/4759/files/5th_grade_division_math_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9996/2024/files/30326182999.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_off000073e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E4 5268 bytes
SHA-256: 7832ef567e9c1bae61e481a46ffa1763f9c44d72fc042d3133c63e9a834723b0
font_01_sfnt_off0000860d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860D 15420 bytes
SHA-256: b2e618654a0c13192aeeede92b85b0c1c2c6da39baa1d21d9aa77bdfe3bf0620

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