Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a93a4f7a7c98641…

MALICIOUS

PDF

78.0 KB Created: 2021-04-21 22:08:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a9dea0faf38b095c7805d40aba470b21 SHA-1: 1f7345bbaf8a4107b1acffedba7e357a1cf73aa8 SHA-256: 7a93a4f7a7c98641ed0ad7cdb46a541f9246598ebb0ff52834bab16c98ac6d2d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://xezojetit.ru/strik?utm_term=how+to+shut+off+a+kidde+smoke+alarm PDF link annotation
    • http://zagejudivavi.sportsontheweb.net/fowuzevaxaboradimezo.pdfIn PDF document text
    • http://giwitijudaleka.mygamesonline.org/34268776.pdfIn PDF document text
    • http://fashion-deals.xyz/fizesarovemotn6b2n.pdfIn PDF document text
    • http://kavelizopepi.mywebcommunity.org/vagagapufuduxavuxogag.pdfIn PDF document text
    • http://dragonflysagewellness.com/visobedaligetosajezanibskn0e.pdfIn PDF document text
    • http://zesegalos.scienceontheweb.net/gagodenogam.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/xupovobejanam/10972734870.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd826008-0860-4052-8b56-e3d3149c6791/25104806409.pdfIn PDF document text
    • https://s3.amazonaws.com/wowonesoribu/activity_based_costing_example_problem_solution.pdfIn PDF document text
    • http://nukivamo.myartsonline.com/vocabulary_words_for_5th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/16647234295.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/cisco_umbrella_insights_ordering_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/what_are_the_characteristics_of_god_the_father.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/610daa42-3ac0-4b90-9108-ec6a3bec1048/how_to_get_marriage_contract_in_nso_online.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/lexicon_ethics_book_in_hindi_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/13069778619.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/53782418073.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/xeforuxelixabozodo.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/83216574770.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/125cc_honda_dirt_bike_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/lovejixebukuzamudipote.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/ritelovifamiwo.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/a_marvelous_work_and_a_wonder_lds.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_off0000f31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31C 5264 bytes
SHA-256: 10e72275124c12cd0e0f026d6ee400dc8d88ac8432d7cd4df39f2d821dbd461e
font_01_sfnt_off000104e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104E6 11140 bytes
SHA-256: dd351542edfa6f3729956cf69afb2792f4062b2ac08ed147fc164b47615690ef

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