Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f6a80c16dc4b96a…

MALICIOUS

PDF

67.1 KB Created: 2021-02-07 09:46:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c49c5a5d70f4d7736b198cb876863ba1 SHA-1: 4eb7291d64439bfce4564ddd320825e4f70dfb27 SHA-256: 5f6a80c16dc4b96a18b8d8fcee5d6e592b3676cc9af7cb25cfebc8be456d8a67
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://bologen.ru/aws?utm_term=electrocardiography+for+healthcare+professionals+3rd+edition+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4469641/normal_5fe00c46474b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372101/normal_5ff65dade4d73.pdfIn PDF document text
    • http://2gusevshop.space/geometric_template_powerpointyoatr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383165/normal_5ffe0ef479cba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381759/normal_5fd302a4e9d67.pdfIn PDF document text
    • http://idealslimitalia-oficial.site/huawei_airtel_4g_hotspot_manual7ru7v.pdfIn PDF document text
    • http://shtampshop.ru/berufoje2dd7r.pdfIn PDF document text
    • http://vnds-super.space/xorobc8n5g.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bagineju.epizy.com/vidmate_apps_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/simon_mcbeath_competition_car_aerodynamics.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/61971076927.pdfIn PDF document text
    • http://tujatubaniza.epizy.com/arcsoft_photostudio_5._5_kostenlos.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/guide_book_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/86411974111.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/9725163650.pdfIn PDF document text
    • http://sugunava.epizy.com/awesome_pictures_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/14319198470.pdfIn PDF document text
    • http://nipesuvaz.epizy.com/bujoseludedolebojog.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_off0000c5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B3 5640 bytes
SHA-256: 10e722e85898ad9279ce375776c596e223e42579217bdb173819c31ff6f214c9
font_01_sfnt_off0000d8ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8EE 11244 bytes
SHA-256: eac8a32ecaf3fc7442c9faf0a53f327affbff865f2878e4e3dc5fd82881f2b96