Malicious PDF — malware analysis report

Static analysis result for SHA-256 b05678f9aac8651d…

MALICIOUS

PDF

68.0 KB Created: 2021-02-14 08:54:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2fdf6e25422a1c2e5108471f71f92bd5 SHA-1: c43e8cf9d47b398919575a5b9a0a1095dcb980ea SHA-256: b05678f9aac8651d99bc5d6b3de130d5e4cf1609ad97b8c3e2fa18825c2dd2e0
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://baarspo.ru/wix?keyword=zinik+wheels+for+sale PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459057/normal_5fdfd3904c418.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/795a67.pdfIn PDF document text
    • https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/vinapa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461211/normal_5fecc59f2c7cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389616/normal_60286df63a3a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369162/normal_5ffb969c437ca.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/xazarujokemus/xoxofosawogiwavikej.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/bonfire_meme_song.pdfIn PDF document text
    • http://morufigalolo.rf.gd/bhartiya_naa_songs.pdfIn PDF document text
    • http://pubowabe.epizy.com/base64_to_angular_2.pdfIn PDF document text
    • http://tarefipiv.rf.gd/16021863786.pdfIn PDF document text
    • http://muxomak.epizy.com/participe_pass_et_adjectif_verbal.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/mlb_weather_report_rotogrinders.pdfIn PDF document text
    • http://zavinawotomuvef.epizy.com/wojefukumam.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/corporation_bylaws_template_free.pdfIn PDF document text
    • http://zilatinevosageg.rf.gd/arena_di_verona_programma_2018.pdfIn PDF document text
    • http://vubapapi.epizy.com/65666497774.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_off0000cd26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD26 4968 bytes
SHA-256: 91583fb2eb81d776a264a43e6315b3e0ca459f008624c933df6a2cf9067f176a
font_01_sfnt_off0000de21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE21 11040 bytes
SHA-256: 2b34ae018ff1273a6267b581e18a2697c4261dfa621035a3ec58791d8c9ab8cf