Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b60bb8683c2309…

MALICIOUS

PDF

45.5 KB Created: 2020-11-08 05:45:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 3624c553d3f293c1bcb5406a97849368 SHA-1: 9504b51ed44d8af5b2af3c6547d80fd4f24f330e SHA-256: c6b60bb8683c23097e47e5bf7465dcae6d64ec8737e8e466170e02e1dd16f87c
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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=december+2020+cruises+from+florida In PDF document text
    • https://dunofedipusafo.weebly.com/uploads/1/3/4/4/134477286/sejerugefoluzoxoko.pdfIn PDF document text
    • https://pixogapowirotuj.weebly.com/uploads/1/3/4/6/134641161/wadojazogemuke-juveso-zegupinuge.pdfIn PDF document text
    • https://nonililuwadev.weebly.com/uploads/1/3/4/3/134354571/2f24cd.pdfIn PDF document text
    • https://sevurefomofib.weebly.com/uploads/1/3/4/4/134451272/92ece93dc0075.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/lebuwotafibumo_numenuzewomu_rawaponakuku_defumeteduz.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/bitopaweruxivel.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/08aa3da6-a92a-4f58-9772-fe19f8e137de/dovelujutatibajagoma.pdfIn PDF document text
    • https://nusonuna.files.wordpress.com/2020/11/kegawaxedopolafigugoni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80662326-50b4-445b-93ee-d86f5e0d20d5/waweravaju.pdfIn PDF document text
    • https://jurimewuva.files.wordpress.com/2020/11/91777551244.pdfIn PDF document text
    • https://xelinatuki.files.wordpress.com/2020/11/12873235441.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_off000072c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C8 5580 bytes
SHA-256: a7d4f29c38f26efb8e862ce7edf897881fa1ebcad329d5f2d7fda26c75d7f439
font_01_sfnt_off000085a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A4 10480 bytes
SHA-256: 25503b8e65505614456e48ba86324ab471e12b9b84b48b9d5ca4e61b355bf7b0