Malicious PDF — malware analysis report

Static analysis result for SHA-256 63a1613547a538ac…

MALICIOUS

PDF

75.5 KB Created: 2021-01-26 02:31:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9e6986ed0a3aea9d01403d89ecfced06 SHA-1: 763d35e6c4f4486c5b721d06dea146adb75b47b9 SHA-256: 63a1613547a538ac451a868df785c03ba76942492ca59db44668fa332597bd30
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/aws?utm_term=hodder+edexcel+igcse+maths+answers PDF link annotation
    • https://jaduvobawitirok.weebly.com/uploads/1/3/4/3/134398576/wotupunu_goluratamozaw_lovexida.pdfIn PDF document text
    • http://sweetygirl.club/931034806066thrp.pdfIn PDF document text
    • https://bujivopipagafo.weebly.com/uploads/1/3/5/3/135321681/1335094.pdfIn PDF document text
    • https://gusoberususot.weebly.com/uploads/1/3/1/4/131454899/jebowujatudipuj.pdfIn PDF document text
    • http://zhigina.ru/sakura_school_simulator_apk_androiduw9bc.pdfIn PDF document text
    • https://jigupipugefelo.weebly.com/uploads/1/3/4/3/134387822/gusefejojadi.pdfIn PDF document text
    • http://robertferrell.net/sinibop2qbey.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/Q4egdgf/lumu_light_meter_amazon.pdfIn PDF document text
    • http://puviwaxeraw.22web.org/82502003778.pdfIn PDF document text
    • https://cdn.sqhk.co/levuzivanu/gjjiGPQ/9115132867.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/gcjezji/vonabejeporesizoxunul.pdfIn PDF document text
    • https://lepefolavexar.weebly.com/uploads/1/3/0/8/130874674/d1ba4298605d4e7.pdfIn PDF document text
    • https://cdn.sqhk.co/mewowoji/H0kihNP/yandex_stock_price_nasdaq.pdfIn PDF document text
    • https://dopovubejaxow.weebly.com/uploads/1/3/4/0/134017692/6019912.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/tuzakifezara/guided_reading_mesopotamia_lesson_2_mesopotamian_empires.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/66123760365.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/70593982082.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/15762599769.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_off0000e832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE832 5472 bytes
SHA-256: f84e5de9d655841c7c12e50909e5d274e1116d656bcaa04e3716fff7569d88e0
font_01_sfnt_off0000fab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAB1 11128 bytes
SHA-256: 3d157e34b73adb7bb70610e032f6931f70000d57ff2560135d8bb5d4d9ecee8f

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