Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0d92047247302cc…

MALICIOUS

PDF

71.5 KB Created: 2021-02-18 04:20:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 76f2b2b7d0294f5a2a4c985921646bd8 SHA-1: 167004fd45af01044adf8a2c30434f907cd835f4 SHA-256: b0d92047247302cc2389dca9b36b9ffaaf5636c773090f50c84ded6e850e637c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=mindi+wood+solids PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381344/normal_601e3a0d9cbbe.pdfIn PDF document text
    • http://suxiselukex.66ghz.com/wefamiwosa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394068/normal_600ccee0c3e11.pdfIn PDF document text
    • http://liko-sneakers.com/pemudarigunalezi1xev.pdfIn PDF document text
    • http://lifeit.pro/conditional_formatting_in_excel_2007id06i.pdfIn PDF document text
    • http://douchehq.xyz/44469998544ppnhi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417806/normal_6021a58cba9ee.pdfIn PDF document text
    • http://foluxokifoni.22web.org/jajexefajelobobumekawuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416659/normal_5ff4c8b151613.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/somamere/229609583.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/why_was_allegiant_part_2_cancelled.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/bowstring_lake_mn_ice_fishing_report.pdfIn PDF document text
    • http://lozufusudurosok.epizy.com/36935483653.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_off0000defa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFA 4612 bytes
SHA-256: 5e4116445186949da7e75c16b97042dd458d96020e37a974ed486e080d74e8d5
font_01_sfnt_off0000eeda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDA 10104 bytes
SHA-256: e967afa23342f7bf5f35cb8b8e6ecfb9c5ba40b13e1eabe504ba0af340427e71