Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e113691de623c6e…

MALICIOUS

PDF

82.7 KB Created: 2021-02-24 23:54:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-09
MD5: 880c2a5283bf22032e7d5974681636cc SHA-1: 358eefed9c3b4667385a9cb7593c52d5eef7661c SHA-256: 5e113691de623c6eec0b0fb493178bbd3ec1791e71116bda91ed66d5c0dd6845
196 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.
  • 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://s3.amazonaws.com/rujabepifar/kaxalug.pdf In PDF document text
    • https://s3.amazonaws.com/gomakobez/zetaxanotalezefe.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/letter_worksheets_for_kindergarten.pdfIn PDF document text
    • https://mubafuzolifuben.weebly.com/uploads/1/3/4/6/134644730/fbc36d86aa72ec.pdfIn PDF document text
    • http://newipufisatag.scienceontheweb.net/gevomumomunazisasiruruso.pdfIn PDF document text
    • https://rebavunegiluzu.weebly.com/uploads/1/3/4/4/134497465/setebutipawepaluzex.pdfIn PDF document text
    • http://madoxorijegobe.sportsontheweb.net/panurolin.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/25341911426.pdfIn PDF document text
    • http://nazikako.22web.org/53673161863.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/xedojibuwoluwebo.pdfIn PDF document text
    • https://sarejazaxixosib.weebly.com/uploads/1/3/4/6/134633098/2ab4439fbd.pdfIn PDF document text
    • http://fefiwizam.sportsontheweb.net/escuelas_contemporaneas_de_la_psicologia.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/35150368499.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/hydraulic_grade_line_calculation_excel_spreadsheet.pdfIn PDF document text
    • http://zawugudumi.getenjoyment.net/software_development_services_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/50574420324.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/58122515995.pdfIn PDF document text
    • http://wijasagasipode.getenjoyment.net/rekobaxu.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/binomische_formeln_aufgaben_mit_lsungen_zum_ausdrucken.pdfIn PDF document text
    • https://jottigo.ru/123?utm_term=f+table+statistics+.05PDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00010b0a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00010b0a.bin)
    • http://kavibajegis.onlinewebshop.net/94509761729.pdfIn PDF document text
    • http://defipezisezujor.rf.gd/imperative_spanish_form.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 extracted file (font_00_sfnt_off00010b0a.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B0A 5092 bytes
SHA-256: a46348749ae76ee63e16c7ccd71cb4d3d1372ae4fb8ac5d0ad3203f1e30d9d8a
font_01_sfnt_off00011c72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C72 9552 bytes
SHA-256: 69249d580430a28bdef3a035352d881fd9306ffd6fbed633208397f3a97fbb79