Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5fafe4604e42821…

MALICIOUS

PDF

75.5 KB Created: 2021-02-12 16:59:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f9c13667a2d326ca0b07b2e4b4f3041c SHA-1: 31245341d6d78aaa38e60c01b56ef88d8c313cf9 SHA-256: d5fafe4604e42821c1649ffeac4aa49b0fe01486d93bc0648b64e545f673457a
196 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wix?keyword=identifying+figurative+language+worksheet+5 PDF link annotation
    • http://jazabezul.iblogger.org/display_platform_from_bacterial_spore_coat_proteins.pdfIn PDF document text
    • https://somotudodij.weebly.com/uploads/1/3/4/6/134699902/99477e4d7.pdfIn PDF document text
    • http://gimakelodikovij.iblogger.org/english_speaking_course_in_marathi_app.pdfIn PDF document text
    • https://sabidodavo.weebly.com/uploads/1/3/1/4/131408103/nolaroz.pdfIn PDF document text
    • http://cheapestshop.xyz/administration_interview_questions_template2r09q.pdfIn PDF document text
    • https://jubukukovojiri.weebly.com/uploads/1/3/5/3/135306868/lavituf_bujevolet.pdfIn PDF document text
    • https://pejivepomut.weebly.com/uploads/1/3/5/3/135339444/jibikexitijawoji.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/xovajukoxin/talisujaj.pdfIn PDF document text
    • http://vokoribosid.rf.gd/mogoseralewigemumofonufa.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/vertex_form_calculator_with_vertex_and_point.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/xuxunezejusurikupejoduko.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/comparative_forms_of_adverbs_l_g.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/jegikunifulukewebesi.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/nhs_bursary_student_travel_claim_form.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/80430859955.pdfIn PDF document text
    • http://xifonefoje.epizy.com/nexodumubegunobinofuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/b._el._ed_form_fees.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/neighborhood_watch_report_hud.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_off0000e75a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE75A 5548 bytes
SHA-256: fcf4e8dae4ebba8373381c7e30fcc1498e724b39348e1832009ed1b7ef95f43f
font_01_sfnt_off0000fa62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA62 11752 bytes
SHA-256: b89ac324509a836fabbb9e78c40e6068be54321ab4ddfd0bb6fd3189c85fdcfb

Open this report in the interactive analyzer, or submit your own file for analysis.