Malicious PDF — malware analysis report

Static analysis result for SHA-256 e950671af9b60b2c…

MALICIOUS

PDF

69.5 KB Created: 2021-02-22 06:28:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 12da19a634425257706c099f7c1a2528 SHA-1: 70dc1bb9d75733349f31999470e017f324af6e41 SHA-256: e950671af9b60b2cf827a4e24ab9f21a4a003015774d9ef6f2de32e80919cb7f
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://jacksth.ru/123?utm_term=nortel+m3904+telephone PDF link annotation
    • https://cdn.sqhk.co/xuxofidipo/mATgeje/jarepesivixupipafatozi.pdfIn PDF document text
    • https://cdn.sqhk.co/runenuti/aEhjQWp/jonanaxotojadax.pdfIn PDF document text
    • https://pulolated.weebly.com/uploads/1/3/0/7/130740140/6443754.pdfIn PDF document text
    • https://lewaxirilukuxod.weebly.com/uploads/1/3/0/8/130813115/nabizejis_vaxag.pdfIn PDF document text
    • http://mukosejak.iblogger.org/vawofikuriwagenajuv.pdfIn PDF document text
    • https://jikesisepam.weebly.com/uploads/1/3/1/4/131406861/1583945.pdfIn PDF document text
    • http://nuzopofe.iblogger.org/instagram_videos_from_private_account.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sojizodujibibo.epizy.com/taotao_125cc_dirt_bike_parts.pdfIn PDF document text
    • http://jizowasogafiw.rf.gd/ecommerce_template_themeforest.pdfIn PDF document text
    • http://zosutifajo.rf.gd/funitikoxoxigek.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/carmina_burana_poemas.pdfIn PDF document text
    • http://josusasufuni.epizy.com/grade_3_fractions_worksheets_free.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/final_fantasy_xiv_races_guide.pdfIn PDF document text
    • http://juxawewoguseku.epizy.com/98942045241.pdfIn PDF document text
    • http://xupimegoroze.epizy.com/xixosigawazago.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/cutting_edge_advanced_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/92249161984.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/80958877304.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_off0000d5a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A2 5188 bytes
SHA-256: cd743e72c33a126ef476cf43f1053f29e55c90a0e4350816af83c6bf2ce30e3d
font_01_sfnt_off0000e727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE727 9968 bytes
SHA-256: b0af6610eb6c78491595dcc207dc3ed4f3e330229cd07b439a5bd927f8891437