Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dcd19f210df19a9…

MALICIOUS

PDF

63.1 KB Created: 2021-02-14 04:31:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ec0a7f1c0174f4beb382cf7e412852d6 SHA-1: b0b2bb5a2b0ef62577ae9e7406e676baccd106e0 SHA-256: 5dcd19f210df19a9e05b4ee41cf36300f610f899744d3703e7f067686d08c190
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://leonvi.ru/wix?keyword=tan+calculus+solutions+manual+pdf PDF link annotation
    • http://xuwajofona.iblogger.org/vehicle_registration_transfer_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497395/normal_601a80e9b072a.pdfIn PDF document text
    • https://veriketosamu.weebly.com/uploads/1/3/4/6/134675732/gizutedo-topemavagojuzu-jidewa.pdfIn PDF document text
    • https://cdn.sqhk.co/rajemaramiw/Yhcjagd/7066418536.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/1KIhigi/skyview_lite_neowise.pdfIn PDF document text
    • https://famimiketavow.weebly.com/uploads/1/3/0/8/130873946/2be113d5e998.pdfIn PDF document text
    • https://xetutimi.weebly.com/uploads/1/3/0/9/130968997/9a2cd0f70b0.pdfIn PDF document text
    • https://cdn.sqhk.co/wujejelot/fzPgjhS/princess_fashion_girl_dress_up_makeup_salon.pdfIn PDF document text
    • https://divuvefa.weebly.com/uploads/1/3/4/7/134759037/xelafotabaxume.pdfIn PDF document text
    • https://cdn.sqhk.co/xasexuwosul/ihIWicY/84819970698.pdfIn PDF document text
    • https://cdn.sqhk.co/dutimapo/hb5ghgh/final_fantasy_tactics_pc_port.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dunuruzofugavix.rf.gd/40400111359.pdfIn PDF document text
    • http://pixagikaw.epizy.com/avery_label_templates_for_word_l7162.pdfIn PDF document text
    • http://denawovusu.rf.gd/cds_2019_answer_key.pdfIn PDF document text
    • http://nufufud.epizy.com/2018_movies_in_tamilrockers._net.pdfIn PDF document text
    • http://gonidiwofove.epizy.com/begotten_not_made_catholic_answers.pdfIn PDF document text
    • http://kegogoxuxupi.rf.gd/84447943469.pdfIn PDF document text
    • http://tosaxope.rf.gd/biochemistry_laboratory_rodney_boyer.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_off0000bcc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCC4 5156 bytes
SHA-256: 18762326a1f7509e24e184864ffe7e1aeeecf279048a04965dfd19a328ca155b
font_01_sfnt_off0000ce3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE3F 9592 bytes
SHA-256: d3aaf9b3ce7612cf68bdad643b14803abe3a23e5385b2ff6818b2871e479a797

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