Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a16d9aba8956a2a…

MALICIOUS

PDF

85.8 KB Created: 2021-02-13 08:54:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 58004bebd6dd1468f60c4083c267cb24 SHA-1: 1e5c4cc745cf730b5f99cd9bc491a10b5b4a5363 SHA-256: 2a16d9aba8956a2a0c4ad701bd53422777fe11e5d5552f6cc2fa7fc3219a468f
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://bologen.ru/wix?keyword=male+enhancement+forum+reviews PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4491437/normal_5ffd7d7351b93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476011/normal_601f69be8eaa0.pdfIn PDF document text
    • http://pokanupat.iblogger.org/unstable_angina_guideline_malaysia.pdfIn PDF document text
    • https://paninopuj.weebly.com/uploads/1/3/0/7/130739529/2798555.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405459/normal_5fcf18fbaedd6.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/bikijunewiluripuzotizeku.pdfIn PDF document text
    • https://levevuwakute.weebly.com/uploads/1/3/4/9/134904524/fepafiwapaduzide.pdfIn PDF document text
    • https://setowunujabid.weebly.com/uploads/1/3/4/0/134095848/lopasiri-wusokuv-sotomiponav-ruvugomab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502175/normal_5ffcbbc383f9d.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/gomaxod/battle_house_full_movie_filmywap.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/2412835399.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/kujorazepaxodabevip.pdfIn PDF document text
    • http://jidoxib.rf.gd/sopenufen.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/rudowibubokonakaxus.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/biochemistry_past_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/ativador_office_2010_kms.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/hiring_process_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/film_buddies_in_india_sub_indonesia.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_off000111ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111EE 5280 bytes
SHA-256: f821ae4c38e935afb1faf4f2ae618e915606cc976c7dcea39879119190c41180
font_01_sfnt_off000123d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123D9 11276 bytes
SHA-256: 58268a7ca00f21dbf445119a85e08d3f9e5ca05652a676b1821fa5ea93727dfe

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