Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a2c0456ef645fb3…

MALICIOUS

PDF

72.7 KB Created: 2021-02-24 16:07:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 70cc5f00b398223a7de33f38e0a574f4 SHA-1: 9bc88bbaa53d5d6a0e08a91a5087c334af1ead19 SHA-256: 6a2c0456ef645fb35cdae3c4973a0a96563fc3c0b5ba054332672ab4f6d7fb9c
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=half+steps+and+whole+steps+worksheet In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387712/normal_5fd15ec9c6e5e.pdfIn PDF document text
    • http://white-x.fun/investigative_report_writing6v6rt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467030/normal_60080a0374c4a.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/star_wars_galaxy_of_adventures_ahsoka_tano_figure.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/zedakakuzavofesobufibufa.pdfIn PDF document text
    • http://nazhivy.net/jitokaligoqq692.pdfIn PDF document text
    • http://myshoes.moscow/100_chart_blank_printables06dk.pdfIn PDF document text
    • http://pubgucbayim.com/vebojemiwoderejowmdil.pdfIn PDF document text
    • https://cdn.sqhk.co/tokofape/jutSggf/86178179953.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407576/normal_60354f144f9ec.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/proform_6.0_rt_2.0_hp_motorized_treadmill_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/kojetozativ/YhggLig/nuxev.pdfIn PDF document text
    • https://cdn.sqhk.co/magatile/jgjMyGZ/jalewoj.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/sizadagazagaj/aulas_de_violao_para_iniciantes.pdfIn PDF document text
    • http://fobapisarut.epizy.com/1487629613.pdfIn PDF document text
    • http://lofenabowebezuk.epizy.com/20061492077.pdfIn PDF document text
    • http://moxilapavaz.rf.gd/bmw_e39_wiring_harness_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/beowulf_translation_bro.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/angular_5_dynamic_template_variable.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/legends_of_ultima_taming_guide.pdfIn PDF document text
    • http://nukilaba.myartsonline.com/17_day_diet_cycle_1_grocery_list.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_off0000e151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE151 5248 bytes
SHA-256: e31d05978ae19d9e655b47524cd8fe6270a063e75c5cc98415a4895a1df2e586
font_01_sfnt_off0000f336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF336 10072 bytes
SHA-256: 56585960944605def0310e3fc076c5fb27fcb979e934819c1e9454bd5855fe6b