Malicious PDF — malware analysis report

Static analysis result for SHA-256 926d18853f5d098a…

MALICIOUS

PDF

38.2 KB Created: 2020-10-20 15:18:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0a3d151b4907709fc056aabe4cc73e71 SHA-1: 1eb7aecfd06d333d2feecb90e2618ca5ae9e079a SHA-256: 926d18853f5d098a23487d08abcfb2e1f2021250135031238e622d8bae2bc43e
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=shaadi+me+zaroor+aana+full+movie+onl In PDF document text
    • https://leputixoted.weebly.com/uploads/1/3/2/6/132683438/tipizikowog_fakobejab.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/038885c85ecf8f0.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1515306.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366989/normal_5f89a12fccdc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_5f8afa036f24b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_5f8deff00c79a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386074/normal_5f8d5b1ca82e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379217/normal_5f8c27d3d5400.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/9129687.pdfIn PDF document text
    • https://vafumigoku.weebly.com/uploads/1/3/1/3/131384305/b7d50e2acf269.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/linurigaruxox.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/0d2aed53-e84e-4d18-9675-b751f88dd1e9/mozijewovesoberokapuletuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b63e26d0-e21a-4c76-b4f2-04ceea790390/kojamudut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d9fbe22-1aca-43e4-878f-0136fee09833/luzigumewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a0aa50a-f980-45a4-90fb-da4819a7e953/1357678858.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/143f959d-bfbd-4e7a-91fd-cbf8dfb89f23/ke2_adaptive_control_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3c27e1c-1209-40c5-9f9b-81a06454e53c/46679961693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5289/8739/files/bilonukuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7744/4800/files/phrasal_verbs_list_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/6531/1900/files/lufasijuke.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_off00005580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5580 5180 bytes
SHA-256: 68d09a5dc6c436f4e46a2b250f64f5f00a62719c6e6894541e1b8b7b7970189c
font_01_sfnt_off00006704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6704 10752 bytes
SHA-256: 91a347ba480575b660f52f9556a9c65c52aa01c282c7e4bd8a612f405ec675b7

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