Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4eadffeb437607…

MALICIOUS

PDF

66.5 KB Created: 2021-02-27 10:54:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: eb2753b0a9ff17a191b7235268fd6f6c SHA-1: a752a23f37d96366c6e4b3152972531a77549675 SHA-256: 2f4eadffeb437607b40330024d57c3e864b0652824810d75927d542c1ae4ec56
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jottigo.ru/wix?keyword=a+streetcar+named+desire+answer+key PDF link annotation
    • https://lokejefu.weebly.com/uploads/1/3/5/3/135301848/wixid.pdfIn PDF document text
    • http://rijewomel.scienceontheweb.net/bivetisoxa.pdfIn PDF document text
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/lewulosetomoba_zolez_jotasaxud_xomug.pdfIn PDF document text
    • https://cdn.sqhk.co/mujejadalale/xig96jb/low_fade_black_boy_haircuts_2018.pdfIn PDF document text
    • http://bagesopabiwub.scienceontheweb.net/samsung_s4_mini_datenbertragung.pdfIn PDF document text
    • https://kuwomodelinero.weebly.com/uploads/1/3/0/7/130776449/jivabeko.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/gazutowunonoba.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/top_photography_books_2020.pdfIn PDF document text
    • https://sukuwakutas.weebly.com/uploads/1/3/4/6/134603616/babawilagekudol_pegezupor_wofelaxisob.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/24241348266.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/neviwove/diy_dremel_router_guide.pdfIn PDF document text
    • http://megigezorozo.atwebpages.com/gcse_maths_compound_interest_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/83290434216.pdfIn PDF document text
    • http://roveramo.atwebpages.com/24365578949.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/timberland_uk_us_size_guide.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_off0000c718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC718 5300 bytes
SHA-256: 6e32fb4e149c75298707941851ea82a91088a47606509f17faa24c38b6b1f132
font_01_sfnt_off0000d921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD921 10628 bytes
SHA-256: 379e1e08aa563e506606373c653381670f9c5bc49ef96c31905f81721818a511