Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb342e0d42ca8ef…

MALICIOUS

PDF

74.6 KB Created: 2021-04-08 08:18:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60fcf1ec0843f6d0a2d1eaac7c2fddf1 SHA-1: 278ca667109fedf9dcb8ac9329a905d74d4e6c3f SHA-256: 6bb342e0d42ca8ef137012f626591842a57a9c30ddbc3dd6c134ba35b3930a05
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL that leads to a suspicious domain, likely intended to trick users into downloading further malware or visiting a phishing page. The document body, though heavily obfuscated, suggests a lure related to educational materials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://nipisod.ru/wix?keyword=discovering+french+nouveau+blanc+unite+1+lecon+2+workbook+answers PDF link annotation
    • https://cdn.sqhk.co/xolafunodo/oljas9E/molokozugenakejugupeda.pdfIn PDF document text
    • http://paxezot.getenjoyment.net/bella_vita_salon__day_spa_leavenworth_ks.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450427/normal_5ff58b28baa02.pdfIn PDF document text
    • http://luwogexejel.getenjoyment.net/rexokazarovane.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490244/normal_60432ee039e0e.pdfIn PDF document text
    • http://zeboxagekej.sportsontheweb.net/bmp_file_to_converter_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/uzjj4hb/bepimedixibonojowose.pdfIn PDF document text
    • http://fetedeju.mygamesonline.org/70818747728.pdfIn PDF document text
    • http://serovakarara.mygamesonline.org/4643977654.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/6giQihe/98532985100.pdfIn PDF document text
    • https://cdn.sqhk.co/pulazapusaw/uZwgjgc/71141630226.pdfIn PDF document text
    • https://cdn.sqhk.co/pasivuzuke/gehhEjd/8154935834.pdfIn PDF document text
    • http://fanilobepewe.sportsontheweb.net/types_of_headaches_and_their_treatment.pdfIn 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/c231318e-6185-4bf0-abf2-6bfb5af75201/sajarasitiberabonapiwib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2dbd2b0-0d0d-4704-bb76-ff6756b114da/faxik.pdfIn PDF document text
    • http://bitesokilok.epizy.com/jojusu.pdfIn PDF document text
    • http://diwuzenebixo.epizy.com/blood_heart_images.pdfIn PDF document text
    • http://pawepeg.atwebpages.com/symbiotic_relationship_examples.pdfIn PDF document text
    • http://bufagefitazi.rf.gd/55968542927.pdfIn PDF document text
    • http://lowuzoduveloga.epizy.com/yates_weed_and_feed_safety_data_sheet.pdfIn PDF document text
    • http://ruruwuvatokatal.onlinewebshop.net/gotuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f455dbb7-fa2f-4ea6-b35c-8030ffe8bdff/first_aid_qa_for_the_usmle_step_1_2020.pdfIn PDF document text
    • http://mafonevaverazux.atwebpages.com/keratin_structure_and_function.pdfIn PDF document text
    • http://xakazasaravi.onlinewebshop.net/70612205290.pdfIn PDF document text
    • http://lokimutopilar.epizy.com/82657483842.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7f5.bin
a28fcc4ba65d8171a55e8b87d646ac5d1dd213f66ab2b0026fd39e5ca5d32d1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F5 2900 bytes
font_01_sfnt_off0000e237.bin
48a155232da491295c218a6dc3a1d357bd1eb2f7006856ee0b64091d3ae843b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE237 5684 bytes
font_02_sfnt_off0000f5b0.bin
e50fc4c32cdb40b3ff921fca9d8fba431847c0603707e6d896fd8344e1f4416c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B0 10648 bytes

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