Malicious PDF — malware analysis report

Static analysis result for SHA-256 6290fb00f3fa4bd1…

MALICIOUS

PDF

74.9 KB Created: 2021-03-04 21:27:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 78b25e5cc00e82989779b0acfeb55547 SHA-1: 06e4f0f3b67621d91e49e67122fa377cbfc7786d SHA-256: 6290fb00f3fa4bd1ded618136ea735b1b934bb76cdf06d16cac7f65631e58c77
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://lozipotod.ru/strik?utm_term=barnett+quad+400+crossbow+parts+diagram PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4412897/normal_602b4cb2db9b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423453/normal_5fd848b14198a.pdfIn PDF document text
    • http://tuxesimufimiti.mypressonline.com/electronic_battleship_game_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469355/normal_5fee69dee38ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466165/normal_5fcef8bc6c9b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380411/normal_603b4246212d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461484/normal_5fff01e6d984f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373778/normal_603e83ec21409.pdfIn PDF document text
    • http://jirenaxapibetig.scienceontheweb.net/sorexapofasariwaredadas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417997/normal_5fd69b2a69720.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458124/normal_5fec4d9ee04aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527747/normal_5fc7e451c0dc1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pulutugorivexek.atwebpages.com/53715471958.pdfIn PDF document text
    • https://64b67c6e-fbbd-4787-add8-9ed3e274c95c.filesusr.com/ugd/eb6612_500d371c487a42bcb1359c181724831d.pdf?index=trueIn PDF document text
    • http://petojijoxura.onlinewebshop.net/daxumuzi.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/terraform_kubernetes_annotations_example.pdfIn PDF document text
    • https://ee6bc897-aa08-459d-b6e6-b1b1d69fcba1.filesusr.com/ugd/7ba596_83b10878bd8b42a4b8ac9ff85c604a56.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/anganwadi_form_in_haryana_palwal.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_off0000e372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE372 5996 bytes
SHA-256: 2d8bb10ccd32f514e60f771b2f46c665f0db1e677497c7688e5289fe5313cb80
font_01_sfnt_off0000f7d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D7 11508 bytes
SHA-256: c2b40837dce95a5577f014d28ced186dd616555a686003e170aa3bf00422e1dc

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