Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01c6a5bcab6ed70…

MALICIOUS

PDF

75.4 KB Created: 2021-03-02 02:25:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6161f6679988d8cb44e9d8d4d86825c9 SHA-1: 6971ab16bf4cfeb2e4cfe0f07fb1a34eb89057ab SHA-256: e01c6a5bcab6ed70db3e0669c54429823f3629311b51b5d3687ec39c3a05cb30
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://baarspo.ru/123?utm_term=resumen+completo+del+libro+el+se%25C3%25B1or+de+las+moscas PDF link annotation
    • http://jofosisajagov.iblogger.org/manuale_alfa_romeo_giulietta_2011.pdfIn PDF document text
    • http://dalidusiz.mywebcommunity.org/dt466_turbo_replacement.pdfIn PDF document text
    • https://lizoranulag.weebly.com/uploads/1/3/4/0/134041515/5356861.pdfIn PDF document text
    • https://bezijenogekise.weebly.com/uploads/1/3/4/8/134875893/xisikolisamenarum.pdfIn PDF document text
    • https://jesepivop.weebly.com/uploads/1/3/1/4/131483445/0b5dcb5a37.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvuvidova/hohg7ib/79246419389.pdfIn PDF document text
    • http://papasewavixuk.22web.org/animals_full_hd_images_free.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/lebejos/gubonuredeximixi.pdfIn PDF document text
    • http://xikimafelote.epizy.com/sambalpuria_babu_dj_mix_song.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/togaxexibas.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/feluzavebame.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/rheumatic_fever_prevention_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/87642617719.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/what_does_af_mean_on_cabrio_dryer.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/mavogumakelumixizibikan.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_off0000e476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE476 5580 bytes
SHA-256: 6f65e16b9e5e1a8badc8c6995e3dd4e13a434208fd0593948be22115eabb256b
font_01_sfnt_off0000f70c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70C 11840 bytes
SHA-256: f7c6535d4cf086344338aa021c219bb179356c712fad3fc3f7f7e68fb744420e