Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f26a9a28b3c2b57…

MALICIOUS

PDF

71.8 KB Created: 2021-02-13 21:02:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9c441aa252e40de2ffeb77b379555bc3 SHA-1: fb17fe5101b2b4e62e6d887e270733fa0ab5c66b SHA-256: 0f26a9a28b3c2b57f20ae3f20332381cbf728e62b4c093e6e2b67889cefd5967
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://maypoin.ru/wix?keyword=how+tall+is+cc+from+black+veil+brides PDF link annotation
    • http://replyua.site/35787046545gwmma.pdfIn PDF document text
    • https://cdn.sqhk.co/rapowipijes/hjiadgj/tazufik.pdfIn PDF document text
    • https://lupakekurusope.weebly.com/uploads/1/3/4/6/134652685/9826623.pdfIn PDF document text
    • http://pubggaming.online/texejenisbugx.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/fkifiiU/inspirational_stories_about_change_in_the_workplace.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/hejiigV/goraropaxotagopo.pdfIn PDF document text
    • https://janodiwuzujemux.weebly.com/uploads/1/3/1/3/131382133/d44206a89.pdfIn PDF document text
    • http://masito.space/77487014322wlfzz.pdfIn PDF document text
    • http://netzamka.ru/cognitive_distortions_spanish0fhv2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dudulexo.epizy.com/45108795190.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/emailer_template_html_free.pdfIn PDF document text
    • http://famuruvif.epizy.com/ardaas_2_movie_mp4_hd.pdfIn PDF document text
    • http://xivutunitilema.epizy.com/android_tv_box_4k_magicsee_n5.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/pabetolubitejewuda.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/23036570607.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/senokurumezo.pdfIn PDF document text
    • http://lopumupukerodu.epizy.com/zugikawobavugovaruj.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/xamukeji.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_off0000dc06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC06 5484 bytes
SHA-256: 0d1dd20f17e063c69cb8baabe068e3e8fe0e3e1f68aba1e125ff0f7536937825
font_01_sfnt_off0000eea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA7 10276 bytes
SHA-256: 062705605b2dcf594efc4e76953577aae0d51470268e4f80d1f56037a8f7dca7

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