Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebede6f1c1de3856…

MALICIOUS

PDF

48.8 KB Created: 2020-10-15 20:27:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 00342249135cc9679d68dcc2ca9d1af0 SHA-1: 87411f89cba7284f321426a67bf33421b1a4f117 SHA-256: ebede6f1c1de3856f39eadb1dd0a7f7cb9e35576b44ead31e5654b6a638cc8f3
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/123?keyword=manualidades+de+navidad+con+palitos+de+helado In PDF document text
    • https://site-1043489.mozfiles.com/files/1043489/31027961676.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/8147096.pdfIn PDF document text
    • https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/7594203.pdfIn PDF document text
    • https://xonimitofowe.weebly.com/uploads/1/3/2/6/132682232/5840ac8ed9.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/govorikepudago-gixidawele-wawep-xoxebilepadevu.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/pabagugiridepoluwaru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5f877836934f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366003/normal_5f870bf384461.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_5f885b31dc170.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369525/normal_5f8849d76189b.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/0b698.pdfIn PDF document text
    • https://gituwere.weebly.com/uploads/1/3/0/7/130740556/1562145.pdfIn PDF document text
    • https://rolosakuzorega.weebly.com/uploads/1/3/1/3/131379035/3a08eab74fbcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366341/normal_5f8869a8bd5b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5f885f4226d64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368505/normal_5f88310f64e2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367923/normal_5f8849d66c97a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366302/normal_5f8720c0f17f1.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/7a4f3a81-a29b-44c3-9d93-5b52d48e3858/gepopebodiwozazokigog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/819f9a29-5638-4b3d-baa7-f93aa9632700/97953306885.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23c3671b-1905-4915-9599-db3ee2c5ed34/87318894178.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_off000072d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D4 5012 bytes
SHA-256: 5d75bcd484cd983ec468efb8f4131af4bff4ac70ade2faa26f296ecac175385a
font_01_sfnt_off000083de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83DE 11032 bytes
SHA-256: dd19cbd5b30b85273473492387e23a0e7ea0190bbfaee665caa662f84f3397a8
font_02_sfnt_off0000a7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7B0 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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