Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d0cb2b82a18cb6f…

MALICIOUS

PDF

70.4 KB Created: 2021-02-25 20:09:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 47ee2cffa04478ad479ff76b9ad5087e SHA-1: 08f8e21a02d7ec17b7509359fc5fd4e06224d5e2 SHA-256: 8d0cb2b82a18cb6fc3a655736dc86c987ddaa52d4e45f4d6b4da8424a858fe05
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit user interaction for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/award?keyword=is+ne+dipole+dipole PDF link annotation
    • http://winoxolupuvil.getenjoyment.net/can_you_bake_pizza_in_a_toaster_oven.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444102/normal_5fd3482d63208.pdfIn PDF document text
    • http://pogawubujogeje.mypressonline.com/wordpress_admin_password_reset_phpmyadmin.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/figurative_language_dalam_puisi_the_road_not_taken.pdfIn PDF document text
    • http://piredvizhnik.com/66356819324np6xs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409394/normal_601145990de30.pdfIn PDF document text
    • http://wtia.space/86286651589l73sl.pdfIn PDF document text
    • http://study-english-05.site/pradhan_mantri_awas_yojana_application_form_in_kannada8vkvm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466151/normal_5fed147ce34ee.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/megulu/64200064787.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/what_dog_food_is_good_for_acid_reflux.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/hp_detect_motherboard.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/46170777111.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/30622288888.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/belapit.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/advanced_life_support_drug_guide_for_paramedics.pdfIn PDF document text
    • http://tuwutexo.onlinewebshop.net/97769346773.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/cv_template_with_photo_free_word.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/afterlight_2_apk_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/koxojogupidefexigusuzif.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_off0000d932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD932 4584 bytes
SHA-256: c8d3b08999e16a824df4058fbad2f0478fbf134ea110dc0bf2868c50f589311f
font_01_sfnt_off0000e8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E0 10476 bytes
SHA-256: 59a6b6c049bf9c537b1afecaf4b6a2aa5449a6bd8ab6c1d127cfc4bf0053230f

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