Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f9db3cee13f2063…

MALICIOUS

PDF

68.6 KB Created: 2021-02-17 16:24:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c76d1b1d8c756e9dfa6877f4bd9a2c02 SHA-1: 1859a0a1d2cb90222ae71046e0acda031f7e9e04 SHA-256: 1f9db3cee13f206361200acb684d94e416f6404a99f9f9a49aa559ae200e0989
126 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
  • 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/wb?keyword=kenmore%20elite%20double%20oven%20gas%20range%2076033 PDF link annotation
    • https://wafulezejo.weebly.com/uploads/1/3/4/7/134748518/6213758.pdfIn PDF document text
    • https://gidiwukos.weebly.com/uploads/1/3/1/3/131381706/69cafef08.pdfIn PDF document text
    • http://winemewimivo.22web.org/81227801558.pdfIn PDF document text
    • http://juwatorota.22web.org/company_profile_editable_template_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477864/normal_601090abb0632.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428061/normal_5ff8ce161fa3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453335/normal_602a51755c72b.pdfIn PDF document text
    • https://mutevoleronuxo.weebly.com/uploads/1/3/5/3/135351112/gafupe_zamipa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367642/normal_5fe5fecdf3143.pdfIn PDF document text
    • https://nojinogexosop.weebly.com/uploads/1/3/4/6/134695112/kelafefakopir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gofirog.epizy.com/95392858954.pdfIn PDF document text
    • http://setuvufijub.epizy.com/dapatijiboribanawe.pdfIn PDF document text
    • http://xotepugiz.rf.gd/adelphia_scandal.pdfIn PDF document text
    • http://baloxes.epizy.com/nexikabogerisiviluvedulad.pdfIn PDF document text
    • http://delorikafuba.rf.gd/semi_formal_dresses_brisbane_australia.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_off0000cac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC9 5852 bytes
SHA-256: 5bc0a5f8872885a6380e7e76a893c3fb9bac2d706b77a21edc07e848e52b79da
font_01_sfnt_off0000deac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAC 11628 bytes
SHA-256: c61d17c0e41fa72b40428361e25aa77184aceac1876a8b98cd37dff53fa9b7c5