Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e79f505ce4ceb7…

MALICIOUS

PDF

80.1 KB Created: 2021-02-12 09:48:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0292e6e155b31aeb1bb016d8a340c2ba SHA-1: 4d909853876cba1649bee5367510b0d3848d161c SHA-256: 32e79f505ce4ceb7defa487f917e56914fb48edf90f32e46ba808a9ea56122ed
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://druttle.ru/123?utm_term=gimp+user+manual+pdf PDF link annotation
    • https://cdn.sqhk.co/feluxolid/hdRl6gi/xajazelibenutiji.pdfIn PDF document text
    • http://oneshops.space/28678783733mv4qu.pdfIn PDF document text
    • http://organic100.fun/31567226984tk1u0.pdfIn PDF document text
    • https://cdn.sqhk.co/fekesolip/lu1xgeX/parental_control_block_apps.pdfIn PDF document text
    • https://cdn.sqhk.co/kupibetefuko/ch43id0/hit_radio_100_guam_live_stream.pdfIn PDF document text
    • https://sumajodezidozi.weebly.com/uploads/1/3/3/9/133997227/pugotirirazi.pdfIn PDF document text
    • https://manabuvajej.weebly.com/uploads/1/3/4/8/134847277/d0c9bcba8b7.pdfIn PDF document text
    • http://info-pages.ru/how_to_teach_your_baby_to_self_soothesbj5j.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/lotibabakuj/nightclub_flyer_design_psd_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/smooth_criminal_hd_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/lapbook_templates_homeschool_share.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/contoh_media_audio_visual.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/83456542934.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/97525465934.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/bufoligipofor.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/plataforma_de_avales_centro_democratico.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/voruzolajezovavad.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/pimuzikoziselabo.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_off0000fca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA2 5220 bytes
SHA-256: 9ace563a17896ecae142108a43e606167ba34295bdd4ceb1055e1a94a501ce9c
font_01_sfnt_off00010e4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E4E 10940 bytes
SHA-256: 6cb0a58fba21a0ec06f6321eb67f79826886e4b33955a5b0d86ee1b6ffeed99b

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