Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a024a140fbbb64…

MALICIOUS

PDF

71.0 KB Created: 2021-02-04 22:42:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a69daf3784c2f6d3ddba461789bd50a7 SHA-1: 339ae8094b4c883f08087a2b3a3918c6a924e813 SHA-256: 45a024a140fbbb64403e9821041a46028abf0805032288f7ecfd0163c28ebd99
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://bologen.ru/wb?keyword=website%20backgrounds%20free PDF link annotation
    • http://shoop-fl.ru/sogakurebuladafitawatodexp3a9d.pdfIn PDF document text
    • http://zilijakal.iblogger.org/punenisu.pdfIn PDF document text
    • https://lagomumudalo.weebly.com/uploads/1/3/2/6/132681699/wetixurifoda.pdfIn PDF document text
    • http://prognoz-football.club/visual_basic._net_tutorialscljgt.pdfIn PDF document text
    • https://cdn.sqhk.co/zipodumup/gdhjyia/tj_maxx_near_me_hours_of_operation.pdfIn PDF document text
    • https://cdn.sqhk.co/guzikiku/HoBqgiH/black_friday_deals_2019_basketball.pdfIn PDF document text
    • https://cdn.sqhk.co/kexofodatop/fAQvgec/5479276491.pdfIn PDF document text
    • https://cdn.sqhk.co/rasirise/iZiehcf/81240209081.pdfIn PDF document text
    • https://nidikibadut.weebly.com/uploads/1/3/1/4/131453007/3791021.pdfIn PDF document text
    • http://potoborotagivud.22web.org/fajiligovujetuzivudodij.pdfIn PDF document text
    • http://zumofujej.iblogger.org/91322258605.pdfIn PDF document text
    • http://maska-respirator.shop/28079302972zs536.pdfIn PDF document text
    • https://jigurojo.weebly.com/uploads/1/3/5/3/135321607/gegutufanirisa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruvatarojamun.rf.gd/mazavijuxaziluwuse.pdfIn PDF document text
    • http://bupuboteba.epizy.com/catalogue_ph_kin_hafele.pdfIn PDF document text
    • http://fikikozazilut.rf.gd/alto_s_adventure_mod_apk_free.pdfIn PDF document text
    • http://jiboleramar.epizy.com/wirifufeso.pdfIn PDF document text
    • http://gewagopixinilu.rf.gd/anaphylactic_shock_treatment_guidelines_2016.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_off0000d87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD87C 5372 bytes
SHA-256: d5e4e122d553e04e17b574cf4a01f7774aca252d75c12a7e2eb2e17b20f997a4
font_01_sfnt_off0000eae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE1 10732 bytes
SHA-256: 0d7b38930d6a59a922960ce3c4c630c996ab43ed3443b58cfeba9e1ea4685056