Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce004b07a5d3e9f7…

MALICIOUS

PDF

54.5 KB Created: 2020-11-06 20:03:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: cd50a0a3fc7d9cb9b0bb9b45c4b460d1 SHA-1: 63710152c366981fb9ff3cf2620936cc6cf38381 SHA-256: ce004b07a5d3e9f74f7a950cab48e8367b4f9fef7253f1043f2aef65e8520c13
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://traffine.ru/aws?keyword=preposiciones+de+lugar+en+ingles+y+ejercicios In PDF document text
    • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/4342907.pdfIn PDF document text
    • https://vixeroniwemeful.weebly.com/uploads/1/3/0/7/130740086/0c93cf830ecdcfb.pdfIn PDF document text
    • https://tiwilofudux.weebly.com/uploads/1/3/1/6/131606348/bitakaka.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/1b943018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372101/normal_5f9015129ac9f.pdfIn PDF document text
    • https://lodobimamavudug.weebly.com/uploads/1/3/4/3/134306091/4718287.pdfIn PDF document text
    • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/7998241.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/busixakowun_zefisuni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374963/normal_5f921708657e8.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/2a95a677-3892-4f17-9515-39b2f373aa10/5417458424.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e3df11d-c9ff-49d9-aa8c-b8c98fc65f2a/fegepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/032a39bd-054c-495b-919d-df665bb0f8c6/217793688.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_off000092e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92E8 5420 bytes
SHA-256: c122e094048680554863639da563988c9b9043a96a7f24c37924359c75a6e528
font_01_sfnt_off0000a573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA573 11676 bytes
SHA-256: 2afdb4313031112d755cbfe1cb1cdc07b2c1fc703095c5c79784d86a8df614bc

Open this report in the interactive analyzer, or submit your own file for analysis.