Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb3b62a38a31059…

MALICIOUS

PDF

81.1 KB Created: 2021-03-17 13:45:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 75804b2cbbd2e5261a53e75e16ae9236 SHA-1: cb14285dd334957a325f3b353f72008432e367e0 SHA-256: 1bb3b62a38a31059cf56ef9bf98e1dd54bc5ace804247509f1a44c9574f98150
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search query, likely to trick users into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious domain for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/aws?utm_term=can+you+cook+chips+in+an+air+fryer+without+oil PDF link annotation
    • http://kawafopi.mygamesonline.org/xudisajerikakofim.pdfIn PDF document text
    • http://kaxavetaxudu.mywebcommunity.org/mowefibewo.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/basics_of_biblical_hebrew_vocabulary_cards.pdfIn PDF document text
    • http://verification-help.business/kekaxixuzabirikirulelof13x7.pdfIn PDF document text
    • http://xiwupulo.medianewsonline.com/how_to_connect_harbor_breeze_remote.pdfIn PDF document text
    • http://remontnatali.ru/what_is_the_average_page_size_for_a_novel5jxpb.pdfIn PDF document text
    • http://vowewudimo.mypressonline.com/dumamo.pdfIn PDF document text
    • http://geloritiveda.mygamesonline.org/the_merry_adventures_of_robin_hood_chapter_3_summary.pdfIn PDF document text
    • http://tokiridevifo.medianewsonline.com/60429497327.pdfIn PDF document text
    • http://ribavid.medianewsonline.com/alfabet_po_angielsku_wymowa.pdfIn PDF document text
    • http://mimivamefigupe.sportsontheweb.net/blazer_pro_128_16h.pdfIn PDF document text
    • http://pidawudimo.scienceontheweb.net/how_much_does_a_workers_permit_cost_in_nc.pdfIn PDF document text
    • http://tebogekememesij.mygamesonline.org/28814336499.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lipeporo.onlinewebshop.net/sagefibope.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/world_economic_forum_tourism_competitiveness_report.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/cocoon_migos_lyrics_video.pdfIn PDF document text
    • http://fuguzametekobo.myartsonline.com/list_of_common_countable_and_uncountable_nouns.pdfIn PDF document text
    • http://bemabam.myartsonline.com/82682556176.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/96567645679.pdfIn PDF document text
    • http://vidugozu.atwebpages.com/insurance_awareness_book.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/89798724323.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/tuzukaviketix.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_off0000fd1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1B 5268 bytes
SHA-256: ff02385629087e4ade58d5cf2a05b34ffe622acb0566ca10caa6ce6e67075968
font_01_sfnt_off00010f18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F18 11584 bytes
SHA-256: 761261db63119f7053becd65d99a6a767818b178cbc20726bc7f27fb7ee7354e

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