Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5eae1cc279c67fe…

MALICIOUS

PDF

62.8 KB Created: 2020-10-18 22:50:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 93655e2e7383bb2b2fd427871af8f6f1 SHA-1: 571ef4656c6f1e0f5392c9e2af7b617f9e807a7a SHA-256: f5eae1cc279c67fe57b87520f8fd4d7e55cc401ae0020e3fe525e1768b918ce1
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://ggtraff.ru/strik?keyword=principales+caracteristicas+de+opera In PDF document text
    • https://penulikadima.weebly.com/uploads/1/3/1/4/131482887/suwumadevurigi.pdfIn PDF document text
    • https://meporolokiso.weebly.com/uploads/1/3/2/6/132681401/1038442.pdfIn PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/rudesebolivemesimewe.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/fajigumopomaz_sugusirigadeg.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/a8401ec7a9859.pdfIn PDF document text
    • https://pagofere.weebly.com/uploads/1/3/1/3/131398194/sebakezokiligod.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/10610.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/2770840.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370064/normal_5f88212134c3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369162/normal_5f8b6c27ad1f2.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/8eec7fdd-cf8a-4d79-97b2-421585606d0b/71823309606.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7540a45f-8d0e-4d75-908c-fdc607981611/wixem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f562af99-4b02-4d32-9c7d-1955702f2fe7/95629044462.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee529b73-655e-4743-937d-ab8b5f60749c/lonolidad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8917ef8-b31c-4051-84be-4e0c4bd78bd8/voxene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c098825-3c4a-49ae-9b9a-65484dd56af3/dedepuvipumabepowaza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ca5c34b-1465-4657-863a-d2e9ee1d4b28/79236194533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25367d29-687f-4467-986b-d1c677af677a/riwofupodipemosavo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30c79d0f-d917-4518-bae4-d498ef3820e6/zuvuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ef18260-85ed-44db-a981-4d35769a5d20/56248113012.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_off0000b1c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C9 5068 bytes
SHA-256: 261c02e03c209d9b315ca65e735834ecadd05a73404ceeaf44d8255635f4efeb
font_01_sfnt_off0000c2ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2FF 12904 bytes
SHA-256: 4fe64366a31f01dd97578b9670e77deb00dd75df1b260f692887ce41b318e7bf

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