Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea45266aa5315182…

MALICIOUS

PDF

67.9 KB Created: 2021-02-17 01:56:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8fa669941f632f144502a9bd59c62a65 SHA-1: a6022e6319d311e3d030ad95f287794b4d51c2cb SHA-256: ea45266aa531518255b06db1ed0c187b5a7fb6d7d7ce5dbc244142e2b882b8d0
136 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
  • 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://leonvi.ru/wix?keyword=conjuguemos+grammar+worksheet+direct+object+pronouns+%25232+answers PDF link annotation
    • http://milanomoda.site/zobevuk395yf.pdfIn PDF document text
    • http://akillidestekbasvuruformu.online/3072151309d72m0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477408/normal_60208e65eabf9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414491/normal_5ff5ec2d9f5c0.pdfIn PDF document text
    • http://fridgeservice.ru/rod_of_the_shifting_crust2k50g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475866/normal_5ff5ed87eee49.pdfIn PDF document text
    • http://igbusinessabouthelp.com/elements_of_literature_worksheets5rb1c.pdfIn PDF document text
    • http://parralax.net/wenigewewewirfkfr0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xotomisen/70371520844.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/jio_phone_call_recording.pdfIn PDF document text
    • http://jabepujun.epizy.com/the_spectacular_now_subtitles_english.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/14650812002.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/fules.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/42890059063.pdfIn PDF document text
    • http://rufegojokod.epizy.com/crude_oil_inventory_report_today_api.pdfIn PDF document text
    • http://xelidamos.epizy.com/vsepr_origami_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/wowugaxakolukemesasavix.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/zusukameratalovotavam.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC66 5732 bytes
SHA-256: f7b072d8ea1c9dc966d5bb288155699518852009a28f1543e549802dd4407e91
font_01_sfnt_off0000cfd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD2 10592 bytes
SHA-256: 41bba4c64e5a64c53bc5c17cbe8f70f6146b7ad7f8d5e42a3b81a748b6641713
font_02_sfnt_off0000f3fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FB 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71