Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fc5d242a2bda70b…

MALICIOUS

PDF

44.1 KB Created: 2020-10-15 11:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 361ccdf4a34e392e4772562d7a4330a9 SHA-1: 38b69fbf68e0ec8381b16a429d592f2148e2fccf SHA-256: 1fc5d242a2bda70b3f1f155e446b78ec617639f400a884e1f3cc62361ead335b
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=vxrail+network+configuration+guide In PDF document text
    • https://site-1036651.mozfiles.com/files/1036651/12612553255.pdfIn PDF document text
    • https://site-1043447.mozfiles.com/files/1043447/68685005003.pdfIn PDF document text
    • https://site-1039895.mozfiles.com/files/1039895/wimezixivokirixo.pdfIn PDF document text
    • https://site-1042670.mozfiles.com/files/1042670/padilomovuk.pdfIn PDF document text
    • https://site-1038908.mozfiles.com/files/1038908/72834093508.pdfIn PDF document text
    • https://site-1037215.mozfiles.com/files/1037215/19200710633.pdfIn PDF document text
    • https://site-1038783.mozfiles.com/files/1038783/simafofiminekiwemi.pdfIn PDF document text
    • https://site-1037086.mozfiles.com/files/1037086/sujudodanuboka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367920/normal_5f87646024315.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f8755fb0be2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366063/normal_5f87330b4c636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366630/normal_5f872ec6d437e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367622/normal_5f8751a977fa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366063/normal_5f87eac3278cc.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/1/0437/9105/7058/files/kujem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/8881/7562/files/rijenamazagipagidixomogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/ihagee_exakta_twin_tl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e600b956-f47d-4775-a52b-497c1c9c24e5/potutipipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99886b7b-d7f2-4761-afee-c8aeaf5d5032/62031546518.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_off000062eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 5200 bytes
SHA-256: 95ef6087353c82ff314c24591d50ff2db878ed1cd10cecda061c4d8cc91d3be8
font_01_sfnt_off000074be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BE 15024 bytes
SHA-256: ffc480f687c3c38d69aeb54836e170f8d1991c837f7e116b5059a7ce18c7e89d

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