Malicious PDF — malware analysis report

Static analysis result for SHA-256 0180edb36a5331b1…

MALICIOUS

PDF

45.1 KB Created: 2020-10-15 10:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c4e761c43bb6e6bcb30d6c5d12559011 SHA-1: 684f0ed350d8f89ebeb429245c4600de18f44f69 SHA-256: 0180edb36a5331b1204e9c94a2b02ff11bf98a0a807ff9d5259cc0bd0bba0bcf
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://cctraff.ru/strik?keyword=wind+turbine+types+pdf In PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/8147096.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/dinisepomuzejekeged.pdfIn PDF document text
    • https://mogezisatizate.weebly.com/uploads/1/3/0/7/130775403/ff3ab70bb12c.pdfIn PDF document text
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/banagefasusum.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/vunidixeviro_xitosujitupile_kadape.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/15a30b0ef.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/7433093.pdfIn PDF document text
    • https://dagigokes.weebly.com/uploads/1/3/0/7/130739756/e7642.pdfIn PDF document text
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/sidejeko_daradilet.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/04609804.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366309/normal_5f8727127f599.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5f87602a612c3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/7a6d86de-b9da-436c-b93a-8a926d8f6dde/10921263545.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f62d4469-dd83-4c1e-a1f8-aab95269a92f/49147799566.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54f5bcd9-c409-417d-8e86-9fc943ff20c5/jakipekodoguwel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55417b31-b851-4fa8-8a52-1d41efcf0c4c/43913483256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3816/1561/files/73512117370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9342/5316/files/flight_of_icarus_iron_maiden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5282/6263/files/jealous_guy_john_lennon_lyrics_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1751/0818/files/theres_a_hole_in_the_bottom_of_the_sea_sheet_music.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000662a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662A 4820 bytes
SHA-256: d5234b5a297853cc713ed86e22c7b499bc1e99e0500848ca346641ebf142de86
font_01_sfnt_off0000769c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769C 10172 bytes
SHA-256: 4af4f406102f5fa9afdd9bd69d128fa8f1a119e789c94a9c2f3c46dc366d30a6
font_02_sfnt_off00009971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9971 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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