Malicious PDF — malware analysis report

Static analysis result for SHA-256 44d29ce598e03fdd…

MALICIOUS

PDF

68.7 KB Created: 2021-02-28 22:58:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 05673fe8c0b27e394e87c8d82303d9f8 SHA-1: a7daea87900eb3c55849d597331131401b40a4a8 SHA-256: 44d29ce598e03fdd2251f1d7d03da59fab13adc3e00ae5f58d6de6f56ac3afe8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/wix?keyword=carson+city+crystal+high+school PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4455886/normal_60018658cdbe2.pdfIn PDF document text
    • http://triple-doska4.club/49978693128a6na5.pdfIn PDF document text
    • http://vbnmcxz.xyz/jezixewizogozetobibi1hrzk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374852/normal_5ffd4c1cc7d63.pdfIn PDF document text
    • http://pearhaidhr.fun/inner_child_guided_meditation_scripte4dmy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411252/normal_602bf98220f13.pdfIn PDF document text
    • http://ritual-venki.online/49220079553541hc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415936/normal_5fe18581c423c.pdfIn PDF document text
    • http://sollabs.xyz/how_to_clean_a_tecumseh_10_hp_carburetorx5sid.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/gewuwasi/baixar_snaptube_para_android_4._0._4.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/kigigujezelufuforofapuk.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/adverbs_of_manner_exercises_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/angular_template_driven_form_custom_validation.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/provisional_certificate_format_in_word.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/time_grade_3_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/wemasuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/whitfield_advantage_2_pellet_stove_auger_motor.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/desolation_movie_2017_parents_guide.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_off0000d0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D1 5068 bytes
SHA-256: dc59852e57cc71b6f641e93d136d43c5f87705b9179a69e9392b2166eb0cca5c
font_01_sfnt_off0000e209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE209 10440 bytes
SHA-256: e368a0a4c956473bee1c4a871e6702221fa73295a13204d6c6899ea8e1b669c3