Malicious PDF — malware analysis report

Static analysis result for SHA-256 48405a3fe11bcfb1…

MALICIOUS

PDF

65.1 KB Created: 2021-02-26 20:27:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6d8c121d3a3f67f942a70f574ecccd14 SHA-1: deeb0a201bbf0487efac2f3bb23eddb7151ff254 SHA-256: 48405a3fe11bcfb1a9cd768245a60dc7b640eac710a8e0232ac63c78f84226b4
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://zajinet.ru/award?keyword=big+green+egg+size+large+cover PDF link annotation
    • https://cdn.sqhk.co/naxudufejik/egehBjj/rukusuramozesozusujufij.pdfIn PDF document text
    • https://puwulafu.weebly.com/uploads/1/3/5/3/135329465/7682554.pdfIn PDF document text
    • http://poguwukobewale.22web.org/ssc_result_2017_marksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/lesepivir/2jeQHNN/cable_swing_coat.pdfIn PDF document text
    • https://dujapiloxi.weebly.com/uploads/1/3/1/8/131857305/866db70.pdfIn PDF document text
    • https://cdn.sqhk.co/zanudiwageg/bgj5Fie/elements_of_design_color_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/wafifovuwel/6ACgiGk/vakamilobubapuredu.pdfIn PDF document text
    • http://teenagetutor.online/landice_l7_treadmill_error_codesmmtjs.pdfIn PDF document text
    • http://blognews.top/bogidutizixs39j.pdfIn PDF document text
    • https://lulogozikojag.weebly.com/uploads/1/3/1/8/131858975/tapom_zulejifevaso.pdfIn PDF document text
    • http://bilet-pdd.site/wurosevesofxiigm.pdfIn PDF document text
    • http://profer-opt.ru/2287913590154ka2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bafimilatape.epizy.com/how_to_reset_liftmaster_keypad_code.pdfIn PDF document text
    • http://kemetosope.epizy.com/word_analogy_worksheet.pdfIn PDF document text
    • http://radagosedapisat.epizy.com/87817039183.pdfIn PDF document text
    • http://kodinola.rf.gd/how_to_reset_g_shock_wr20bar.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_off0000c21c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC21C 5128 bytes
SHA-256: 7a0abdd4c8429e1482a8f407d9de3cead05522c03b00743027e68dda53ca7d09
font_01_sfnt_off0000d3b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B0 10548 bytes
SHA-256: 79d8ff99f7e25134bad7baac54b01e805f6e8519fe3bea994a62067bdc894238