Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d6b880844e88d4…

MALICIOUS

PDF

73.8 KB Created: 2021-01-20 22:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8fbaface01881bc5f784b1ddc8152381 SHA-1: 9bd455f99ad2a90af7a89c08302e08a689760e62 SHA-256: f2d6b880844e88d4f741562a7d348b6f7625a94a3a61e462b236a04f29458a57
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://druttle.ru/wb?keyword=blockchain%20technology%20investment%20funds PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412583/normal_6000bbdeb1a63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411935/normal_5fa3a2a2a122a.pdfIn PDF document text
    • https://site-1177547.mozfiles.com/files/1177547/chain_reaction_versace_blue.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416927/normal_5ff610a14e9dd.pdfIn PDF document text
    • https://site-1245026.mozfiles.com/files/1245026/37612617920.pdfIn PDF document text
    • https://site-1177316.mozfiles.com/files/1177316/sun_country_airlines_android_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446776/normal_5ff22d9c93528.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473616/normal_5fc54aa09e87a.pdfIn PDF document text
    • http://kikovetademu.22web.org/nene_ambani_tamil_songs.pdfIn PDF document text
    • https://site-1168513.mozfiles.com/files/1168513/certificado_de_origen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388289/normal_5f98f6d00959f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393189/normal_5fbc03b73dd70.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://difiwawi.epizy.com/riwupavowalofikugatetako.pdfIn PDF document text
    • http://xusixuxoribixe.rf.gd/96020512114.pdfIn PDF document text
    • http://notijopozij.epizy.com/dotefux.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_off0000e2d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D3 5616 bytes
SHA-256: d12214fffe066a32de627e78a96c36d8a07f3475da2a7147094bbbc059093a6b
font_01_sfnt_off0000f5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E4 10724 bytes
SHA-256: 8e3623d9f07faeec2e725329a47e454beeff05169d40a60d0338f92006d0f104