Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea6922f6fe8334e2…

MALICIOUS

PDF

40.9 KB Created: 2020-11-07 21:13:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: cfd330a6ed7d1dcc1f394d27fe4cb047 SHA-1: 75615312a83fe62071f049a37446cd1c431f014c SHA-256: ea6922f6fe8334e2ad1ee838229530d52ba54ae6d0dc2f99e8cf31ff31327058
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=alice+in+wonderland+play+description PDF link annotation
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/nemodesitunaj-xafopifoz.pdfIn PDF document text
    • https://kagilovudugavap.weebly.com/uploads/1/3/1/1/131164538/4265222ee.pdfIn PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/b58870f6cb.pdfIn PDF document text
    • https://sijaxidav.weebly.com/uploads/1/3/4/4/134499987/00d9c509e3b0c.pdfIn PDF document text
    • https://vuwugaletop.weebly.com/uploads/1/3/4/5/134588193/4267496.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444102/normal_5fa6452564c1e.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/5155a60d98.pdfIn PDF document text
    • https://dufevirefat.weebly.com/uploads/1/3/1/4/131438490/9109751.pdfIn PDF document text
    • https://bedakowunuva.weebly.com/uploads/1/3/4/3/134342711/nunajuko.pdfIn PDF document text
    • https://gurigibafex.weebly.com/uploads/1/3/0/7/130739571/xovefirebe-dikuxepixazo-lovojulobena-perugusopi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/golepe/84467967189.pdfIn PDF document text
    • https://puvikilanu.files.wordpress.com/2020/11/pegevetosupok.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/planos_asturias.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_off0000609f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609F 5248 bytes
SHA-256: 2f838d19158eb0dc1bb973a9e37cb369c85b09fd39cf9dab3289821c76937f11
font_01_sfnt_off0000729e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729E 10560 bytes
SHA-256: 7e4ff0a739e8daa3da2496928845388171d7387187a76dc91e0d8fba5e01a921

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