Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e33a95cee5b31d9…

MALICIOUS

PDF

63.6 KB Created: 2021-02-18 09:37:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: aba53218050f0d9e39741672d55e0bd1 SHA-1: 3d976152d966268b0cf6678f6ea65b899dd6b686 SHA-256: 2e33a95cee5b31d9c88a639037abe008dd5f246b1817bd65bf9e31110586c44b
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://druttle.ru/wix?keyword=karen+scott+shoes+reviews PDF link annotation
    • https://cdn.sqhk.co/sogefuluf/cy9MBVC/redream_emulator_setup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428341/normal_601d832a2e29b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425235/normal_60157641a2261.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/IhjgiqC/solosowekilaza.pdfIn PDF document text
    • https://cdn.sqhk.co/dixufeja/hjiMhbv/cross_stitch_old_world_map.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480149/normal_5fee4fc314fb3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491670/normal_5fc7d2f122308.pdfIn PDF document text
    • https://cdn.sqhk.co/vanewano/Whiohhc/green_party_michigan_ballot_2020.pdfIn PDF document text
    • http://rakuxijewimafud.22web.org/71259320983.pdfIn PDF document text
    • https://cdn.sqhk.co/papebikuwi/f9WggFv/star_wars_characters_costumes_diy.pdfIn PDF document text
    • https://xadadoroz.weebly.com/uploads/1/3/6/0/136024884/3595850.pdfIn PDF document text
    • https://cdn.sqhk.co/xejexeremiso/j0mghif/switch_pro_9100_4runner_install.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/fheX1hf/88129171765.pdfIn PDF document text
    • https://tovumanaxi.weebly.com/uploads/1/3/5/3/135392352/bilaw-sufeboki-sigafegisusa.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/tarizirefevifab/finding_slope_worksheet.pdfIn PDF document text
    • http://sejigesenevemi.epizy.com/balloon_card_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/close_enough_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/82130781622.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/vakaxonof.pdfIn PDF document text
    • http://konogorubur.epizy.com/54937992722.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_off0000bd01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD01 4976 bytes
SHA-256: 1bde62641acd2351c56b71397828ecea9dc982a7e153a2cecdc39c66a0d1883c
font_01_sfnt_off0000ce01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE01 10372 bytes
SHA-256: 65ec9b618f6f6826dbf914fd65d94a1c00d4cfa18a326078d572679e753fddac

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