Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bbbd6741474127a…

MALICIOUS

PDF

75.2 KB Created: 2021-03-07 13:47:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0d9f78ac90fef01f54c4c532e3860e21 SHA-1: 87729c4a6e1bb9f9a97988ac89bde3fd67edffcf SHA-256: 2bbbd6741474127ab9d64db550ad7f1cd78033433dd6f205ef613c5314911dfb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/strik?utm_term=ti+82+vs+ti+84 PDF link annotation
    • http://tesekitogibop.22web.org/95339495302.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466676/normal_602af6b2dd420.pdfIn PDF document text
    • http://bcpzon4segurabetaviabcp.com/787904090384z38k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460725/normal_5fcbd5c34d039.pdfIn PDF document text
    • http://austritkfa.com/free_applicant_tracking_excel_templateymvku.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/cd697e28-2165-4c22-b324-addf51975f4d/nabajatojuluwifavuboxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1975e1c-8821-477a-a311-cc016799f9f7/69344478777.pdfIn PDF document text
    • http://dipuritaxuxok.rf.gd/why_is_my_dog_licking_her_paw_raw.pdfIn PDF document text
    • http://siwojanapav.epizy.com/zamapep.pdfIn PDF document text
    • http://bowapediwimelul.epizy.com/the_book_of_enoch_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/037b015d-cc93-4557-8a44-19fb11430419/tufiliguwamajulomaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d51e2350-6c52-4b6d-82b9-6ab3c319262e/network_security_basics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb0dfc77-5b5f-4899-b7dc-cecceb9b6aeb/besigufifimajotib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cc1d9dc-ca8b-4ffb-99dd-cff47c77932d/libro_de_estudios_biblicos_para_nios.pdfIn PDF document text
    • http://litufowanukoro.epizy.com/55902497217.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_off0000e67d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE67D 4764 bytes
SHA-256: 36b9b3a8d84d4fe8d11ea969ecfdcc826b32016d09164a9d4ee9ab903f9b89aa
font_01_sfnt_off0000f6d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D4 12220 bytes
SHA-256: d27b7d8e39904bebc7653154ab341d32078d536d0403f8f0c00263a369bbd5d8