Malicious PDF — malware analysis report

Static analysis result for SHA-256 c580d4db102f18ba…

MALICIOUS

PDF

66.3 KB Created: 2021-01-23 23:59:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: e8297059783c4e06c8ad40cefbb62fe6 SHA-1: 16ea1147838bc09ac5b8713d78331bf0c014b38a SHA-256: c580d4db102f18ba53d6abd3bce680eebc7f0b25b421586c382259c164a638fc
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://traffmen.ru/123?utm_term=4c+iced+tea+vs+lipton In PDF document text
    • http://timogefubor.22web.org/876692739.pdfIn PDF document text
    • http://losiruwu.66ghz.com/rosibexorigitazewika.pdfIn PDF document text
    • http://zefunafujazi.22web.org/kedipamutalelutosujowaxi.pdfIn PDF document text
    • https://pixizibonemitu.weebly.com/uploads/1/3/1/3/131382366/soneru_sefaxamimufo.pdfIn PDF document text
    • http://berozava.iblogger.org/79520995850.pdfIn PDF document text
    • https://nusuxoxoli.weebly.com/uploads/1/3/2/7/132710665/kulosamebesek-zexanokuxagawa.pdfIn PDF document text
    • https://jumojebanofoz.weebly.com/uploads/1/3/5/3/135302369/c3a0e2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gewapapis.epizy.com/autodesk_revit_2015_family_library.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/77498061371.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/director_appointment_letter_template_south_africa.pdfIn PDF document text
    • http://repofifimi.epizy.com/export_outlook_2010_contacts_to_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/godipadewatig.pdfIn PDF document text
    • http://regipikiwubadov.epizy.com/bibi_bourelly_album.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/gavikogu.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/94946194832.pdfIn PDF document text
    • http://momugegunimex.rf.gd/vatag.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_off0000c68d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC68D 5024 bytes
SHA-256: 86cba022ff78069eaf4170ff6e3a99d24fcaceabda4455c84104c2e9de8f83d9
font_01_sfnt_off0000d7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C4 10280 bytes
SHA-256: eba4ffacfd62a6a31f03f31a8b0702a1b2a41f76c205524db0978cd695877ee5