Malicious PDF — malware analysis report

Static analysis result for SHA-256 38614147501789b1…

MALICIOUS

PDF

64.6 KB Created: 2021-02-11 20:07:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9b3bfccfffaf83689effd38f145b9e95 SHA-1: 8ca5ad1efab78d548e078d67e35d0eae63ab7313 SHA-256: 38614147501789b13e3fd51d341ff49c9eca17923f5035819616f01904d55d3b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://druttle.ru/wix?keyword=flip+flops+pickup PDF link annotation
    • https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/rofulixesanuw.pdfIn PDF document text
    • http://revadadijavu.22web.org/60719210313.pdfIn PDF document text
    • https://jekufagiz.weebly.com/uploads/1/3/0/7/130739150/b3fc9d.pdfIn PDF document text
    • https://muwirejevom.weebly.com/uploads/1/3/1/8/131857435/lefixuxi_tisebakajepanog_bigamaneke.pdfIn PDF document text
    • https://wezefumuge.weebly.com/uploads/1/3/4/6/134614004/rufakogezopi_lixavevadutalis_raxagebuva_babopaz.pdfIn PDF document text
    • https://nudiwosesi.weebly.com/uploads/1/3/4/3/134317077/3939770.pdfIn PDF document text
    • https://lupudeme.weebly.com/uploads/1/3/1/3/131378919/0e1101c.pdfIn PDF document text
    • https://nomabedipami.weebly.com/uploads/1/3/1/4/131437379/7d0abc57441e336.pdfIn PDF document text
    • https://varupeneg.weebly.com/uploads/1/3/0/9/130969993/jajujowixo_jeweneteridu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zitejilid.epizy.com/libertango_sheet_music_clarinet.pdfIn PDF document text
    • http://kigaxaxoguwebu.rf.gd/fupuwexofesuledim.pdfIn PDF document text
    • http://rirazito.epizy.com/asphalt_8_for_pc_windows_8._1.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/volvo_articulated_dump_truck_operator_manual.pdfIn PDF document text
    • http://xofiketur.rf.gd/independent_clause_worksheets_7th_grade.pdfIn PDF document text
    • http://lulevewutowa.epizy.com/xukuta.pdfIn PDF document text
    • http://dixolasafu.epizy.com/chord_progression_midi_files_s.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_off0000c24e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC24E 4724 bytes
SHA-256: 5d5ca71d615d844ca0e5a884da245c587abdf86c6a73733a0fefae3f9fa05087
font_01_sfnt_off0000d281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD281 10384 bytes
SHA-256: ee7e0da9dcd5787dde87b04033162688596f9ca540557c4aba3ec3850ba93e72