Malicious PDF — malware analysis report

Static analysis result for SHA-256 89dd0844e2999f60…

MALICIOUS

PDF

68.3 KB Created: 2021-02-16 03:53:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3647797b9ead71a484e6c7b21a6d16fa SHA-1: 8eeee5ffdbd70e0c4f7f4b8be1d85f5bf4a6cc2f SHA-256: 89dd0844e2999f6046780437f2731ad5c02e3aea1c9662819030f425cf7b6aa5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=music+in+theory+and+practice+solutions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449974/normal_602ae100042de.pdfIn PDF document text
    • http://nuxuxavolas.22web.org/70192977987.pdfIn PDF document text
    • https://cdn.sqhk.co/dusujukakal/jizjhjf/most_popular_party_card_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461748/normal_5ff4380c0c895.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489981/normal_5fed95ee7392e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371020/normal_60040900ca420.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366637/normal_6019f212a7de8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366408/normal_5ff47a26a2b0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490930/normal_5fc8196f5e27e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416811/normal_6014a171525ec.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://bividit.rf.gd/kixulegagevuxetajinexogir.pdfIn PDF document text
    • http://ruxududomaba.epizy.com/life_skills_outcomes_worksheet_mathematics.pdfIn PDF document text
    • http://kedixiravupit.epizy.com/legal_size_monthly_calendar_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/dispute_equifax_business_report.pdfIn PDF document text
    • http://livasesokod.epizy.com/diy_guitar_pick_punch_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/44641931524.pdfIn PDF document text
    • http://fasokefukolu.epizy.com/gabamuli.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/dekuvomitol.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/xuladutelaxorekox.pdfIn PDF document text
    • http://dowuxufab.epizy.com/w-_4_personal_allowances_worksheet_2018.pdfIn PDF document text
    • http://rapodebo.epizy.com/celsius_heater_manual.pdfIn PDF document text
    • http://letituxis.epizy.com/82303299122.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD60 5268 bytes
SHA-256: ecf1a342525b92045845b88f2ccbc9696d813b12dce6b0e548e4038447ace1ea
font_01_sfnt_off0000cf4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF4C 6148 bytes
SHA-256: 149738eb3e1d0bfb4a5732e89a115965e6f0cf3fc4971c694d3ce3619176544d
font_02_sfnt_off0000df2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2B 10024 bytes
SHA-256: e15f2eb8106739d699a56ec0524bd6d1491d01686eeb5a7258193c08438e0e7f

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