Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dac548ac4353aad…

MALICIOUS

PDF

73.8 KB Created: 2021-02-28 08:14:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a526139e1a1889f1cd59673f591390d5 SHA-1: 2083735eaec04c7b414308b69751674fb956de92 SHA-256: 2dac548ac4353aada08f9fc9078b745a346bd5df150f3deebb07ef1eb05c50f4
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://resalured.ru/wix?keyword=robert+c+johnson+md PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484624/normal_60016a7759ffc.pdfIn PDF document text
    • https://cdn.sqhk.co/dexujagafir/jiggejj/sozileko.pdfIn PDF document text
    • http://jedomagisuw.getenjoyment.net/panasonic_sr-df101_fuzzy_logic_rice_cooker_5-cup.pdfIn PDF document text
    • http://rafupofamurawaf.mygamesonline.org/nuwogil.pdfIn PDF document text
    • http://lirinevewafa.mypressonline.com/tezof.pdfIn PDF document text
    • http://zugasanuko.getenjoyment.net/vomomasegujuz.pdfIn PDF document text
    • https://cdn.sqhk.co/moxelutedoje/iaxjaoQ/war_commander_wiki_controller.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/zaloganirinenivebanarow.pdfIn PDF document text
    • http://bamefidev.mygamesonline.org/what_is_the_septuagint_version_of_the_bible.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428043/normal_5fec5b38c48d3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dazemi/food_adulteration_wikipedia.pdfIn PDF document text
    • http://woranuganavot.myartsonline.com/mobevizumunutevekoluse.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/bernina_sewing_machine_801_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/zufegurug.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/55518833944.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_off0000e537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE537 5160 bytes
SHA-256: 3f89d73fd51bcdede00b4993d1eee556962f68e976ff301422935c7bf35f9964
font_01_sfnt_off0000f6a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A0 10612 bytes
SHA-256: 90a0363a2132878867766cbee5f61361e540cc23c5f151fe9fd1a513641d0f53