Malicious PDF — malware analysis report

Static analysis result for SHA-256 122d499ea121f470…

MALICIOUS

PDF

74.1 KB Created: 2021-02-13 08:41:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b1dab2b2106f60762e735ec5f40dd0cb SHA-1: 54c2cea269e035c1b206c232d3d98b780a729636 SHA-256: 122d499ea121f4709ca63c8210c52b43e26c57a937f3461eb22d3818eda6537e
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://bologen.ru/123?utm_term=german+curse+words+in+english PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4497095/normal_5fd821f44ff05.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409623/normal_5fcf329148f8d.pdfIn PDF document text
    • https://jorevubo.weebly.com/uploads/1/3/4/8/134869484/2bef2a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413004/normal_5ffb3bd215a32.pdfIn PDF document text
    • https://gukejokofa.weebly.com/uploads/1/3/0/7/130739315/girevedoxosukum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373259/normal_6010c59ad5639.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469126/normal_5fd89e687411b.pdfIn PDF document text
    • http://zilofunawoson.iblogger.org/probability_and_statistics_lecture_notes.pdfIn PDF document text
    • https://xuwosanilenerev.weebly.com/uploads/1/3/4/9/134900173/luwarifuruxaluk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381318/normal_5fcfb95056ec6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/laradusa/godzilla_2019_tamil_dubbed_movie_isaimini.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/93761225033.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/one_syllable_adjectives_list.pdfIn PDF document text
    • http://magikid.epizy.com/51526466452.pdfIn PDF document text
    • http://lefanivewog.epizy.com/63988590649.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_off0000e477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE477 5476 bytes
SHA-256: 485330959adf34357624f56964ab247c3a074660a8d38d02f0707f05ce610392
font_01_sfnt_off0000f6f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F7 10864 bytes
SHA-256: cc1b0b36d61a8eefe0cc521a4382571c182a126642b893e12517ba01bce432aa