Malicious PDF — malware analysis report

Static analysis result for SHA-256 04db378620921251…

MALICIOUS

PDF

67.0 KB Created: 2021-03-03 00:51:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8edd333f31bc8a313abdd10198855671 SHA-1: 71cefaec51b28387eb543e051e1cd0a0ff46921b SHA-256: 04db378620921251beac74cd5f525f836132fbe44f7373360b25d7c88e4b91ec
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://jottigo.ru/wix?keyword=v2+wally+receiver+manual PDF link annotation
    • http://fisareboveda.getenjoyment.net/wodiw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448718/normal_60094a16d4709.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450045/normal_5fd916dd7dda4.pdfIn PDF document text
    • http://tejasatobes.medianewsonline.com/lidinagiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496853/normal_6027af6bd67a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485579/normal_5ff667b923347.pdfIn PDF document text
    • https://jinafoxibufesow.weebly.com/uploads/1/3/5/2/135293268/wimafuxaj_palerixomav_wagosomadimuvi_vuxatogojil.pdfIn PDF document text
    • https://febefadu.weebly.com/uploads/1/3/1/4/131453100/gedunefokebinen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368949/normal_60103901b2239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483855/normal_600c3d678a295.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448995/normal_5fe3fe723f05e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490534/normal_5fcd656e95a00.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xivutunitilema.epizy.com/fugakiwuj.pdfIn PDF document text
    • http://zikuwopuduzowe.epizy.com/64489379012.pdfIn PDF document text
    • http://kapirexazi.onlinewebshop.net/difaxabakelanes.pdfIn PDF document text
    • http://duvodix.myartsonline.com/kebeva.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_off0000c8cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8CF 5116 bytes
SHA-256: 29ccff9e231c6ff6b036f7b922c283de01270f11e6f0bc55af33c538e8b9bd9e
font_01_sfnt_off0000da45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA45 10924 bytes
SHA-256: 4ce91a967752b08db85544b0b813c31f96f3be33b6ddc1ea2f6be3dd5377116d