Malicious PDF — malware analysis report

Static analysis result for SHA-256 c003f0985520fc81…

MALICIOUS

PDF

39.4 KB Created: 2020-10-22 20:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 090854fc8031703c863dd220af237773 SHA-1: e4a588dacff2d359355b9e37f170a509c7a518df SHA-256: c003f0985520fc81bfd58c87f052d48811f6251b5efc3265f57a85485220fff9
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://ttraff.link/123?keyword=2020+suzuki+intruder+1400+service+manual In PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/4462752.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/wirexanusir.pdfIn PDF document text
    • https://vixeroniwemeful.weebly.com/uploads/1/3/0/7/130740086/pajejalofot.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/2692242.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/8679912.pdfIn PDF document text
    • https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/betokojinixanuwirana.pdfIn PDF document text
    • https://latenenagizogip.weebly.com/uploads/1/3/2/6/132696064/6876855.pdfIn PDF document text
    • https://repugonajipivup.weebly.com/uploads/1/3/0/8/130814926/2f1b23.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/2284198.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000056e3.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000056e3.bin)
    • https://uploads.strikinglycdn.com/files/ed670fff-7109-4d8f-8365-0432d8347c85/butekobi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/744d40eb-19e1-4956-8f43-ec0bb6c8f658/refizejekotaxamidu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e811a9ec-1694-4a00-a00b-0fa61094ed75/kijil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39b21a34-2cc3-4463-b583-87867adf1796/mededipuse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9d6ebda-9f9b-4598-8399-132461d5dd8d/xebogalewudenidodamunolu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec826814-72ed-4989-97a5-dbbd1f3e777c/motasadudimabanifowiva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1600da70-80e8-4597-9963-f10a8acb1974/93925463409.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b0baaeb-acec-4251-baa3-f482f3ce8be0/68726300923.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/mekor.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/subwoofer_amplifier_circuit_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/22768578830.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/47066069319.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/target_black_friday_ad.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 extracted file (font_00_sfnt_off000056e3.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56E3 5576 bytes
SHA-256: 3e43c3194191cc7438bc468f1658a29f27d00dfe48dd1d77e57a87db7337f72a
font_01_sfnt_off000069d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D1 11540 bytes
SHA-256: e36d0cc259a1d2fc80b647f111d984b147f71ef2e86c3534cf7ef2b1b2c040bb