Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fecef7dbe344f34…

MALICIOUS

PDF

74.8 KB Created: 2021-03-03 10:17:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8ee1a3da13370076240fa2109f0208d8 SHA-1: 664e8e5245a274b74d27bd858af71fed548f3548 SHA-256: 6fecef7dbe344f34e5dcab46ab7bafd1cbeaae0fa53739fe50e1fab7cfc4277d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/award?keyword=nigerian+gospel+praise+and+worship+songs+2020 PDF link annotation
    • http://bisibometixo.mywebcommunity.org/harbor_breeze_flush_mount_ceiling_fan_bracket.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470405/normal_5fe64540260dc.pdfIn PDF document text
    • http://ruwosiju.getenjoyment.net/koboxabobegaseguga.pdfIn PDF document text
    • http://pepesox.22web.org/how_to_insert_sd_card_in_samsung_a70.pdfIn PDF document text
    • http://copyright-helps-team.com/btw_aangifte_formulier_uitlegqz4z4.pdfIn PDF document text
    • http://arbitestpark.xyz/55968654408rwdio.pdfIn PDF document text
    • http://regse.website/komegapg4o6o.pdfIn PDF document text
    • http://gudelew.mywebcommunity.org/papyrus_dani_british_museum.pdfIn PDF document text
    • http://d-youtube.com/47646961753dujil.pdfIn PDF document text
    • http://prostochillforum.fun/fotedadewya2rr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458132/normal_603341ef09fce.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/remavuj/chirutha_movie_all_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/45222047500.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/vovapobirilezow.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/23131029120.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_off0000e85c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85C 5556 bytes
SHA-256: f3bd871f26effee4bd337ec45522ff994925525b2dd5eb148b7842a69465b753
font_01_sfnt_off0000fb51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB51 10184 bytes
SHA-256: 38175a51ccfd5927f7e4404395b8108276e84cb7f5187ad290d3f246a3c2ab35