Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bd7e9f662ad455…

MALICIOUS

PDF

39.4 KB Created: 2020-11-08 17:52:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-02
MD5: 97ef8bbbd5590022cf2a72f8154c8a83 SHA-1: 7fb919ddcda35a07f88501aa5b00976bd93edd87 SHA-256: 30bd7e9f662ad4558865bf82580c926bc536188ee6510d51f015db397ae68b9d
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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=jesus+is+the+answer+chords PDF link annotation
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/8051375.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365555/normal_5f9062736d271.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377912/normal_5f8f76eb7be5a.pdfIn PDF document text
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/figasivumo.pdfIn PDF document text
    • https://vavavutexe.weebly.com/uploads/1/3/4/4/134441002/numulajemen_fotonule_nimibarede_nurejeroloru.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000057cb.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000057cb.bin)
    • https://gukoxawe.files.wordpress.com/2020/11/24807084766.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/8625666511.pdfIn PDF document text
    • https://bexekugob.files.wordpress.com/2020/11/ditexekos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ec55ce9-09a7-43b2-bdb4-f5b5203d44aa/medical_student_survival_guide.pdfIn PDF document text
    • https://bekovepevim.files.wordpress.com/2020/11/leniwibewuwiweki.pdfIn PDF document text
    • https://xidimanafot.files.wordpress.com/2020/11/19110663609.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/amy_elizabeth_cimorelli_weight.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_off000057cb.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57CB 5076 bytes
SHA-256: 359115f91dcd7650ac1f5b92f8f8439946bc6dbde1262829e17e9eed0a02e1a4
font_01_sfnt_off00006914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6914 11780 bytes
SHA-256: 283e998d3fae9750da7cf0c67405319eb12fba44178e09708d394fbd886dd7d8