Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c36a47ed03aa0c3…

MALICIOUS

PDF

68.6 KB Created: 2021-03-03 12:15:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a36857101916246f9401282e27763f8c SHA-1: 38db816e0dbe2bb61ecec8cae3810c8adc55f997 SHA-256: 8c36a47ed03aa0c3fec37e55ad0da6210e55040885644cadc3ee4ed516b93637
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://soxebez.ru/wb?keyword=night%20frederic%20malle PDF link annotation
    • http://silvanozito.online/maya_banks_books_goodreadsdpz7l.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417049/normal_5fd9c2fb7214d.pdfIn PDF document text
    • http://forexgeeks.net/lg_front_load_washing_machine_ie_error_codelfrwd.pdfIn PDF document text
    • http://xevamoz.mygamesonline.org/what_is_a_mala_prayer_beads.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405186/normal_6001ed4e37b62.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/73128680188.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488103/normal_5fc7342747383.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453579/normal_5fc67ae4b4e5c.pdfIn PDF document text
    • http://gratoram.site/qiagen_pcr_purification_kit_pb_bufferwry75.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450517/normal_5fe5e8fb754bc.pdfIn PDF document text
    • http://fruitslope.online/napokopunof440g1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mudefikireneb.rf.gd/unsalted_butter_nutrition_information.pdfIn PDF document text
    • http://jexititojule.rf.gd/lodowawaganetodi.pdfIn PDF document text
    • http://povuputuk.epizy.com/wapatavotimemukov.pdfIn PDF document text
    • http://pedorusare.epizy.com/why_animal_flow.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_off0000d06a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD06A 5224 bytes
SHA-256: ecddf1a6362340cf3d44d41e58f7b01fbb6b99d9a807593a8a8b9366d7c0be7c
font_01_sfnt_off0000e210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE210 10704 bytes
SHA-256: f88f8161c32d15b908b0610814ac4eef25ba61a4927744f52a247859b4ba359d