Malicious PDF — malware analysis report

Static analysis result for SHA-256 94a2a8fab472f3be…

MALICIOUS

PDF

68.8 KB Created: 2020-11-12 18:53:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: d220f3d0cc8da9713fa078c9214dd51d SHA-1: 47f73bfe52869790f0b5f9bf082581024a71b055 SHA-256: 94a2a8fab472f3bedfea134fda0f712d464b1886ebbe0a8d29931e13fa409086
194 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
  • 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.
  • 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://traffine.ru/aws?utm_term=secret+admirer+full+movie In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ec8545e-e12c-413b-beca-40486076e620/autoformation_securit_informatique.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64048608-69ad-473f-80ba-adb5994b3ab4/ta_main_claudio_capo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7d87e3f-2d7a-41ca-b9f8-4e96f3730d93/wagobifipiwejozegupixax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/851ce4bb-8bfe-4205-a3fa-fb7f8435a8f0/59290514540.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc276ba5-916d-4367-ab90-591bbec58cbe/jomizeloxunodesu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ab3ce0d-d9d6-472c-8c21-005a7d5724f9/67640396706.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e36c536-d7a6-4643-971d-bdaa67838e11/luritow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d723eaa6-9833-40c4-85a2-989fd891617a/sixoxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c413743d-eca5-4446-9db2-3d0b1040178f/65602495387.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b90bd07a-4c2e-479f-b346-77fee1f58bb1/24405262701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3179229-8f55-4a3c-837a-1148a29f1be5/48306317650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28cbe3d1-b483-48fa-9b32-03f293f4b4c0/vivisectionist_pathfinder_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/80740569845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f7e5c59-c7e7-4514-96cf-8aba3821482c/79921556529.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/lg_dishwasher_ldf6920st_installation_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b611e6f-9bdb-4bda-a2d7-b8918fadef3e/social_security_office_columbus_ohio_near_me.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_off0000cf00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF00 5152 bytes
SHA-256: 5fa29c05bb0a4de572c4153d821f742f6c8592b9cec6af798d75f3dc27cfce08
font_01_sfnt_off0000e07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07F 11144 bytes
SHA-256: e124e5c55d9eb58f7a391221a795614c45773890e70332175a5d6e4b7118cf0d

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