Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7606376dfd66ee1…

MALICIOUS

PDF

68.0 KB Created: 2021-02-27 21:51:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ec22daf5d335aee9ab275e446f10ab25 SHA-1: fa9e6e59bbe8e382c3a27972382d7a1190045555 SHA-256: e7606376dfd66ee191853b40cc8d91616355037e05cd21e0c6c26d1e0b9b8576
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://lozipotod.ru/award?keyword=acceleration+practice+problems PDF link annotation
    • https://cdn.sqhk.co/xotosobupis/ihjfP1B/warlings_armageddon_mod_apk_happymod.pdfIn PDF document text
    • http://kuvofejom.iblogger.org/56731994844.pdfIn PDF document text
    • https://cdn.sqhk.co/denepepunuja/ehdhigD/jake_gyllenhaal_bubble_boy_mysterio.pdfIn PDF document text
    • http://dazixetenulega.22web.org/arithmetic_sequences_practice_worksheet_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/xaloxezajaga/YcjhZCM/lijefibeg.pdfIn PDF document text
    • https://fijuxibafituwu.weebly.com/uploads/1/3/4/1/134109117/683021.pdfIn PDF document text
    • http://tuderoba.getenjoyment.net/what_does_physical_stamina_mean.pdfIn PDF document text
    • http://kudukudimox.sportsontheweb.net/rolusozopofozonogab.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/bjeahfB/josubuxakikuxe.pdfIn PDF document text
    • https://cdn.sqhk.co/diwamukef/adqtdxg/dinosaur_that_looks_like_triceratops_with_one_horn.pdfIn PDF document text
    • http://sapazukuwujoji.22web.org/81129029407.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://todosix.epizy.com/phd_study_plan_example.pdfIn PDF document text
    • http://zalowakudedakov.rf.gd/55415787736.pdfIn PDF document text
    • http://tanegonezato.epizy.com/36789885900.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_off0000ce77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE77 5208 bytes
SHA-256: ecd4465224b590c23506a5a8b8680673297bf83e763118c8ea98ce501ee695de
font_01_sfnt_off0000e00f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00F 10368 bytes
SHA-256: 392a7fb801d494a2f32f659374de388a93db9c9d21fbfb36ee105c1ae18607f1