Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0e6f548a0bdeaa…

MALICIOUS

PDF

84.4 KB Created: 2021-05-01 16:36:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: cab39c9295dc8dbfa70a393afab35746 SHA-1: 3010caf307baddda1b9bd4602b012b7c551cfb36 SHA-256: 9e0e6f548a0bdeaa46b81c8c361a24f3c6cebca35767dbf5b251651215f1f745
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to contain text related to sewing machines, suggesting a lure to disguise the malicious intent.

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/strik?utm_term=how+to+use+automatic+threader+on+sewing+machine PDF link annotation
    • http://tamigome.scienceontheweb.net/color_by_number_addition_and_subtraction_1st_grade.pdfIn PDF document text
    • http://reform-st.ru/kemasodukorovivikewn2lz.pdfIn PDF document text
    • http://cancandance.org/mametemuvasinawu1kxij.pdfIn PDF document text
    • http://tegubija.mypressonline.com/general_aptitude_test_formulas.pdfIn PDF document text
    • http://repochka.site/talasemia_tratamiento_nutricionalw8psb.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/guvevukesulojasr2rq.pdfIn PDF document text
    • http://jidokove.scienceontheweb.net/femotizadebusa.pdfIn PDF document text
    • http://esclub.pro/codigo_ascii_signo_de_exclamacion46c5n.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pudolajuji.atwebpages.com/the_bible_old_and_new_testaments_king_james_version.pdfIn PDF document text
    • http://xejawaji.myartsonline.com/convert_ppt_to_word_small.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/canon_in_d_piano_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/stock_market_open_tomorrow_predictions.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/pg_cable_gland_size_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/nepixelu.pdfIn PDF document text
    • http://dozuxix.myartsonline.com/67878412515.pdfIn PDF document text
    • http://gizixaxeviduf.myartsonline.com/farm_balance_sheet_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/zubarofutixu.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/application_form_for_uk_visa_from_uganda.pdfIn PDF document text
    • http://gamelaluwer.myartsonline.com/xewizusopupipalosinedolid.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_off00010bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BCC 5372 bytes
SHA-256: ae2639c2137ba074e1ce432f545273de50febc8d4434adcfde4d9d4e41b8aa8d
font_01_sfnt_off00011df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF6 10796 bytes
SHA-256: 6ef848652f8468b46bc82ef3209d4dc191e946ad7045701e63eadfa069010087

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