Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6c45ee868d6e272…

MALICIOUS

PDF

71.0 KB Created: 2021-03-08 07:11:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 78be3ee92f6199265d372dec11ce5fcc SHA-1: becc35d0b66a4cc70e7ea6c9c0a8fee59704ea2b SHA-256: b6c45ee868d6e272674c60714274604a32701c6962992f6abceb1aeb4f6bae23
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/wix?keyword=bridgeport+ribhouse+reviews PDF link annotation
    • https://cdn.sqhk.co/vuvupewog/NogeGXG/recarga_certa_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411701/normal_5feb82c99aa84.pdfIn PDF document text
    • https://cdn.sqhk.co/folukize/I3ijNhj/kong_goodie_bone_stuffing.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410414/normal_60094d6ed6d72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484356/normal_6000a3848258c.pdfIn PDF document text
    • http://pumutug.iblogger.org/29036057990.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388037/normal_5fdf8b3132e76.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484812/normal_5fcb6f70b27d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451352/normal_60164bec189a8.pdfIn PDF document text
    • http://fisidijomufuto.22web.org/92423330181.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476943/normal_60382e32b01a0.pdfIn PDF document text
    • https://cdn.sqhk.co/jutusaxibu/jfhf5hb/kotidinevanorenulexu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473640/normal_5fc5fb1253dfd.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/dosalapasenow/andhra_pradesh_pin_codes_list.pdfIn PDF document text
    • http://nixefafezas.rf.gd/spell_check_offline_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pegek/radan_cad_cam_free.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/wezoselobazexeroladejox.pdfIn PDF document text
    • http://bijesinatepeli.epizy.com/maytag_bravos_washer_lid_lock_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/best_music_ringtones_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/breville_juice_fountain_plus_price.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/kipiratotobeduzanipi.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_off0000d8c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C9 5320 bytes
SHA-256: 6b8fae770971b0a375c1f8ce6e6f56b71c943f27ad37be702e0d61f4e1747375
font_01_sfnt_off0000eaed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAED 10476 bytes
SHA-256: cf3667475b998dadd59cd8bd299308c006ee2d44316085580c2e303e8d7f682a

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