Malicious PDF — malware analysis report

Static analysis result for SHA-256 bda23f45b70eb9d1…

MALICIOUS

PDF

73.0 KB Created: 2021-03-02 07:11:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0e9c6b8e4e095eade3dc2a8fc53072b5 SHA-1: 7255d07653d79712b519e537725fd3a99e6c9277 SHA-256: bda23f45b70eb9d12a43dc961df195238d377536117ab2b3770040cb2097aacb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/wix?keyword=cosmetic+ingredient+dictionary+pdf PDF link annotation
    • http://nadipewin.mywebcommunity.org/nujulibakoxubidumewumife.pdfIn PDF document text
    • https://cdn.sqhk.co/xovatagemi/gct0KpP/tibuzeket.pdfIn PDF document text
    • http://dfds.in/samegesodanejisosexefulplti3.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/Siijhtv/55247165123.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/gDMbihf/spinosaurus_skeleton_museum.pdfIn PDF document text
    • http://kafofal.mygamesonline.org/rivatezuvekobufo.pdfIn PDF document text
    • http://rejemezurufoveg.mywebcommunity.org/motorola_apx_6000.pdfIn PDF document text
    • https://suxekupawuva.weebly.com/uploads/1/3/2/7/132710704/lodiduruna.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/QyEicRS/beposedumugebim.pdfIn PDF document text
    • http://rofuxipof.mywebcommunity.org/feliz_navidad_acordes_jose_feliciano.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/logitech_z_5500_control_pod_compatibility.pdfIn PDF document text
    • http://lamovingcompany.com/savings_tracking_template_excelk1u3a.pdfIn PDF document text
    • https://cdn.sqhk.co/xosuridasago/jcnjugj/42882061035.pdfIn PDF document text
    • http://com-servers.online/frederick_forsyth_the_shepherd8odgb.pdfIn PDF document text
    • http://zdsshop.top/tipos_de_investigacion_cientifica_definicion_y_ejemploscuyht.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e1d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D2 5448 bytes
SHA-256: e3a670f1733b06d62a6ce759abcf538ee5dbfaa78b697820d3d7ce8824c57b23
font_01_sfnt_off0000f44b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44B 10128 bytes
SHA-256: ae2d5adb3765a06747be266e5744fedac65e356c0ae63bae68b07d3cb511714d