Malicious PDF — malware analysis report

Static analysis result for SHA-256 189e3178dbddbebc…

MALICIOUS

PDF

69.9 KB Created: 2021-02-12 04:08:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 68cb8d93728f22289e3ed12cedea01e9 SHA-1: 6fc2c4408f01b05217b3628fa3485cbbc3521313 SHA-256: 189e3178dbddbebc5d4c24d91449be49c5bf473e90db7e9041286abb9cb24847
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://crophysi.ru/wix?keyword=walmart+vudu+activation+code+on+receipt In PDF document text
    • https://cdn.sqhk.co/kupibetefuko/qdhhgic/wbtv_breaking_news_rock_hill_sc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450336/normal_5fe4bc15104ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413002/normal_5fcb58b63036a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443578/normal_600d532f30fd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367019/normal_5fe7b681e965a.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/RJRhjfM/soledomavetesi.pdfIn PDF document text
    • http://nemogaguwexero.iblogger.org/xoninemof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416661/normal_5feaf5c92d769.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/gLiajdv/50205568080.pdfIn PDF document text
    • http://douchehub.xyz/xigufasupojikareseruxc4blt.pdfIn PDF document text
    • https://cdn.sqhk.co/fivodewile/ibfgchi/watete.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470035/normal_600d145f128a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dotemewu.epizy.com/75999463492.pdfIn PDF document text
    • http://tapanowi.epizy.com/nenoxomuvazepifoxewifulo.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_off0000d6ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EF 5116 bytes
SHA-256: 2432b952c1232b247e9a0548139535583031a95f42a7347a7204988fbf5013b5
font_01_sfnt_off0000e84f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84F 10136 bytes
SHA-256: df2f828a28630001a539e7ea9c8c682b41f9623b0fac900a16d7750317f27ed0