Malicious PDF — malware analysis report

Static analysis result for SHA-256 2359f57674427524…

MALICIOUS

PDF

62.6 KB Created: 2021-02-24 04:17:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5ed5b1769a4f4dbc125777682991f503 SHA-1: dd30813d4fecbdc5ba61f273139668d5dfeacd97 SHA-256: 2359f5767442752408742250f97f9474f332e54f01983aa96863575c3c3eef34
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://leonvi.ru/wix?keyword=electromagnetic+induction+worksheet+doc PDF link annotation
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/kuxaxe.pdfIn PDF document text
    • http://gdztut.com/ripanudiwuvawupvp56n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463264/normal_5ff9e57277ed0.pdfIn PDF document text
    • http://steelsho1.club/sufevizy7q2f.pdfIn PDF document text
    • http://e-sparks.ru/41046706538ciovq.pdfIn PDF document text
    • http://vizionsmc.net/luxuzedizesejipavuwomivexddb5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380876/normal_5fcbcad013d2b.pdfIn PDF document text
    • http://reduslim-siteofficial.site/the_fourteenth_goldfish_settingqumsh.pdfIn PDF document text
    • http://mnclassis.org/bachianas_brasileiras_no_5_sheet_musicxgj0d.pdfIn PDF document text
    • https://xijafidul.weebly.com/uploads/1/3/2/3/132303061/jufudimupefone-jilunijafuro-selomepatavi.pdfIn PDF document text
    • http://fc-aromat.ru/25618866185l4d8l.pdfIn PDF document text
    • http://remontvorot24.com/infinite_stratos_2_torrent2yz4b.pdfIn PDF document text
    • https://gikositaga.weebly.com/uploads/1/3/4/7/134773380/pilufakuperewo_kanenopive_sobamatanefumop.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/gupawupigawono/5594596347.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/harry_potter_letterhead_template.pdfIn PDF document text
    • http://dorizoki.rf.gd/cavallino_magazine.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/gerund_phrases_practice_worksheet.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_off0000b7d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7D7 5464 bytes
SHA-256: 2d8ffa9376210f7a70015f7ca4c2f4c19261499ab1325f692b65f9b24acc35c3
font_01_sfnt_off0000ca54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA54 10184 bytes
SHA-256: e85e88639dc49e4de6094b54c9a82c4ae04aaf4b16a40bd2b07645989e30af13