Malicious PDF — malware analysis report

Static analysis result for SHA-256 230f9bcc4b07cf80…

MALICIOUS

PDF

72.9 KB Created: 2021-02-13 14:02:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 71fac3b3c45bd8c163b625ca93b9fb11 SHA-1: 3056d17ea3f852363b7388cb57d5814c4afdc55b SHA-256: 230f9bcc4b07cf80496fb4a65639f884b401b1317433b8c0ee223e7e13c6a155
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wb?keyword=ccleaner%20pro%20%20filehippo PDF link annotation
    • https://laxepesijuniz.weebly.com/uploads/1/3/1/3/131383562/5052993.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410695/normal_5ff46ce9d38c6.pdfIn PDF document text
    • http://starconflict-game.ru/agl_energy_company6kknl.pdfIn PDF document text
    • http://wogizejelalod.iblogger.org/memevifosutilefeweb.pdfIn PDF document text
    • https://cdn.sqhk.co/muxigatatini/dhfKyia/w3schools_javascript_date_function.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406777/normal_6006e4d0ddfdc.pdfIn PDF document text
    • https://kunolutupevuj.weebly.com/uploads/1/3/4/7/134772201/2858028.pdfIn PDF document text
    • https://zojovotonoturur.weebly.com/uploads/1/3/5/3/135348007/morozuxezodaxof-buvemolafapalin-dujiduwat-zuwanopiboba.pdfIn PDF document text
    • http://vpntop.info/dipoxodebonedanes2xuwu.pdfIn PDF document text
    • http://rusedewafizurap.66ghz.com/ericsson_mobility_report_2018_iot.pdfIn PDF document text
    • http://jesiguvolen.22web.org/family_and_friends_5_class_book_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wanodilovini.epizy.com/54714261482.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/jimaluwoxixuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/tavuduzu.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/video_storyboard_template_excel.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_off0000e30d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30D 4832 bytes
SHA-256: 0efef49e078f692c68a39b1d9e429feeb662b7718f1d9b39af92f27f724a5ac7
font_01_sfnt_off0000f376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF376 10504 bytes
SHA-256: e5f9652ba3dc87d6cc626ba783b3aab14b22e58fab5ce7e7800202fc494f4c7a