Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7fa2fd5e66a5660…

MALICIOUS

PDF

72.3 KB Created: 2021-02-28 02:25:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f0344c9c297c1965bbbaf1565aa6acef SHA-1: 1bfdae887297352daa122d5480f9fdbe96e4386a SHA-256: d7fa2fd5e66a566018a522032ae4647394faa760a680ea15aab082f0e46bf9d7
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://jacksth.ru/award?keyword=how+to+cite+the+bible+in+apa+7th+edition PDF link annotation
    • https://korexabareruwa.weebly.com/uploads/1/3/2/6/132680962/4581528.pdfIn PDF document text
    • http://garanibukumom.scienceontheweb.net/lebubeberejujivadunuwab.pdfIn PDF document text
    • http://jidokove.scienceontheweb.net/wendys_employee_handbook.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/in_the_heights.pdfIn PDF document text
    • http://lejunuzegakikuv.mypressonline.com/50795068717.pdfIn PDF document text
    • https://bubemafu.weebly.com/uploads/1/3/5/3/135323081/88eff64eb37.pdfIn PDF document text
    • https://xorimaki.weebly.com/uploads/1/3/0/7/130739578/semaze.pdfIn PDF document text
    • https://fatitabo.weebly.com/uploads/1/3/4/7/134757356/56a2e1202170.pdfIn PDF document text
    • http://zizodoroluxonaf.sportsontheweb.net/gozikum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://samesesodore.onlinewebshop.net/sedekobujapedimefegefike.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/15626735260.pdfIn PDF document text
    • http://badamowafe.onlinewebshop.net/45100922281.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/zoluxinobitegobuz.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/audre_lorde_the_master_s_tools.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_off0000de6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6C 5160 bytes
SHA-256: 7d922c74a1a905c130ec62ab390c82fab84d5927dfa06a6f4ee4b3262b72a57e
font_01_sfnt_off0000f00f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00F 10724 bytes
SHA-256: fba908b438ebc038f7930a5186786eb0be0923a9e4a3a4b549c7c91a9659d68e