Malicious PDF — malware analysis report

Static analysis result for SHA-256 d067d7ce406edaa0…

MALICIOUS

PDF

74.6 KB Created: 2021-02-15 20:26:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3accd75c2a7d6f7bc5e6b9e89e398ec4 SHA-1: 483be865d30b1bfebd6a62175dd80cad2537fb43 SHA-256: d067d7ce406edaa0c97112e7cdfefacf28bafd61a8654b8b21c39ef4f14bd474
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://seumenha.ru/123?utm_term=can+you+stay+in+a+buddhist+monastery+in+india PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374207/normal_5fd68e2de97b6.pdfIn PDF document text
    • http://eroganoficial.site/27050079778wuvmy.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/gibfbQx/rwby_fanfiction_jaune_god_of_light.pdfIn PDF document text
    • http://aazzzry.space/sisovoburok8r4su.pdfIn PDF document text
    • http://snapchat-alert.com/how_are_you_answer_formaldowmw.pdfIn PDF document text
    • http://misstourist.info/26576743944u28aj.pdfIn PDF document text
    • https://cdn.sqhk.co/nomazotesi/ovjeic6/bubble_tea_recipe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482218/normal_5feb4b8c1c9e9.pdfIn PDF document text
    • https://cdn.sqhk.co/baxotonad/Mphiiij/random_space_facts.pdfIn PDF document text
    • http://likelid.xyz/4475960934lfhwl.pdfIn PDF document text
    • https://cdn.sqhk.co/naliwanik/jgQEhj2/wazijurirasapopabi.pdfIn PDF document text
    • http://wrinklestiltskin.com/pronoun-antecedent_agreement_worksheet_and_answer_keytim9a.pdfIn PDF document text
    • https://rudabukonavapuk.weebly.com/uploads/1/3/4/0/134016662/5b7dd65dca3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414515/normal_5fcc399dc1c6a.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/budovewesekaz/92084378995.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_off0000e6f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F1 5180 bytes
SHA-256: 4dd521e25adc01147c4bd324d596d17e39a0744730a9557d6eec9e42b74be006
font_01_sfnt_off0000f860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF860 10848 bytes
SHA-256: e03d9218a50cd59be8caf7905bf0ea5221c9888b93d0bc59ff5063963942c5f8