Malicious PDF — malware analysis report

Static analysis result for SHA-256 081d7f0a58a312d9…

MALICIOUS

PDF

69.8 KB Created: 2021-03-06 23:46:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 093b6674731e760adb24697b736d50b7 SHA-1: 3424c768403eddcdb06907c445f054296d0733ac SHA-256: 081d7f0a58a312d903744b630bf0ed13a008f6c2157cc1b2e6f06f3e3d03edcd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/award?keyword=what+type+of+oil+to+put+in+a+generator PDF link annotation
    • https://cdn.sqhk.co/wujodazera/GjiQclk/trucos_international_superstar_soccer_deluxe_sega_genesis.pdfIn PDF document text
    • http://wopazav.22web.org/star_spangled_banner_piano_sheet_music_musescore.pdfIn PDF document text
    • https://cdn.sqhk.co/rubekafux/bkYgfhc/30962322294.pdfIn PDF document text
    • https://ketadamofexawun.weebly.com/uploads/1/3/5/3/135349072/lulavuwasaxa-rerajogokemedoj.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxaletadi/giDthau/3663193487.pdfIn PDF document text
    • http://supariwepexafat.mywebcommunity.org/sub_zero_650_manual.pdfIn PDF document text
    • http://vobalemujumojak.mywebcommunity.org/weber_grills_parts.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/fL4Qiet/43833111281.pdfIn PDF document text
    • https://rupevegix.weebly.com/uploads/1/3/4/8/134887155/c09997b1b.pdfIn PDF document text
    • https://cdn.sqhk.co/nadetajagupe/XjcQpuP/general_knowledge_quiz_for_teenagers.pdfIn PDF document text
    • https://lilafigofuku.weebly.com/uploads/1/3/1/3/131398347/9008303.pdfIn PDF document text
    • https://burakatotofok.weebly.com/uploads/1/3/1/8/131871829/goxanosajiruxizemiz.pdfIn PDF document text
    • http://palaxofivuleduj.medianewsonline.com/severus_snape_half_blood_prince_meaning.pdfIn PDF document text
    • https://dakufosaxem.weebly.com/uploads/1/3/4/7/134771611/74512cf66da2c7c.pdfIn PDF document text
    • https://cdn.sqhk.co/mewixamok/CjgZge0/sejeduvu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fokodema.epizy.com/la_otra_historia_de_estados_unidos_resumen_por_capitulos.pdfIn PDF document text
    • http://lokuvutifinulef.rf.gd/42028784297.pdfIn PDF document text
    • http://fogosise.rf.gd/digital_signage_templates_html5.pdfIn PDF document text
    • http://tufozule.rf.gd/91903722002.pdfIn PDF document text
    • http://disoluje.myartsonline.com/apple_ipod_6th_generation_user_guide.pdfIn PDF document text
    • http://tudemofexurujen.epizy.com/the_body_book_claire_rayner.pdfIn PDF document text
    • http://fisiroxeriwew.rf.gd/2033466843.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_off0000d77a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77A 5100 bytes
SHA-256: 34c7e600d0288c5dd2f0a8e82c5c3a9200e0241ea4395ea39b4b068c96eca11f
font_01_sfnt_off0000e8ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8EC 9656 bytes
SHA-256: c8042aaa5fb3598c75c56264bc88a40c0827003e0fc65c73cb4ca8fecf5946a1

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