Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec581e5664b9558…

MALICIOUS

PDF

66.8 KB Created: 2021-02-22 07:01:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 97cf6b9a3589492ae339671db5e12667 SHA-1: 3119d12d2fe128378280e80772ddcf5e9758bf3e SHA-256: 7ec581e5664b955896c81ddde91b7e7ea4a8c7d4b0e7ad7368cb1169951d551f
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://bologen.ru/wix?keyword=polaris+atv+maintenance+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4406216/normal_5feb6a2f539d9.pdfIn PDF document text
    • https://wapexuji.weebly.com/uploads/1/3/5/3/135329723/1730366.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454811/normal_6010b3a74e8f7.pdfIn PDF document text
    • http://vbruti.site/how_many_carbs_in_a_shipleys_chocolate_glazed_donutdgrxy.pdfIn PDF document text
    • http://najefot.22web.org/16775141478.pdfIn PDF document text
    • http://trynutra.shop/33235194848azjjx.pdfIn PDF document text
    • https://bovopoboj.weebly.com/uploads/1/3/0/7/130776351/zozepilas.pdfIn PDF document text
    • http://creditscorehelp.info/4446627236nxe2m.pdfIn PDF document text
    • https://zilakakazaxo.weebly.com/uploads/1/3/4/4/134442972/gajobupodirokatusiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501794/normal_6024a866c98da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452169/normal_5fcbed7db61f0.pdfIn PDF document text
    • http://toxedajenoxin.66ghz.com/zoket.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://liwununigu.epizy.com/54471189515.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/25418163802.pdfIn PDF document text
    • http://zoloxufiz.epizy.com/android_10_samsung_date.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/vimolimel.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/vemudijomotabubixowifibir.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_off0000cbbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBE 5004 bytes
SHA-256: 096d6f9caa171def726d18b33691f96f892d252ad1e1ae8b84ce60ab5b8bdad8
font_01_sfnt_off0000dcb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB3 9836 bytes
SHA-256: c4dd83fd055a1e574a63d749975dce1b3f62bd101801e9a52b980d80f4a71f04