Malicious PDF — malware analysis report

Static analysis result for SHA-256 862d4b44ee83abf5…

MALICIOUS

PDF

77.8 KB Created: 2021-04-03 12:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2d7f3e23b1306e0e3955223b76ba3922 SHA-1: 98b25f6a5b2567323c0b84bb281c70ba84cf8598 SHA-256: 862d4b44ee83abf56dbc91798df319c9816b74b2d9d367c7017141b4ecc81b96
96 Risk Score

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 0.9997

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/strik?utm_term=are+there+any+deals+on+verizon+iphones PDF link annotation
    • http://radewilagimalap.iblogger.org/bimaxoz.pdfIn PDF document text
    • http://sesizuxewewax.mygamesonline.org/lincoln_electric_ac-225_stick_welder_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/bedipidis/YLjbNLB/youtube_rv_wifi_booster.pdfIn PDF document text
    • http://fuwipak.22web.org/lajeduvabaluzusevi.pdfIn PDF document text
    • http://mebovedu.getenjoyment.net/minn_kota_talon_12_problems.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/W0tgyXR/steel_and_flesh_old_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxibila/ibhfJij/monster_warlord_hack_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/icpjche/51065860441.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tigefaxoweta.rf.gd/25889130763.pdfIn PDF document text
    • http://genolewedusu.myartsonline.com/isometric_dot_paper_a4.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/xezabutivufoxari.pdfIn PDF document text
    • http://notijukigexu.rf.gd/alimentos_ricos_em_vitamina_c.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/rimifumakogoriviromo.pdfIn PDF document text
    • http://timavutiziv.epizy.com/grade_6_english_comprehension_worksheets.pdfIn PDF document text
    • http://filirepakej.epizy.com/best_books_for_12_year_olds_nz.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/how_to_program_a_ritetemp_thermostat_8035c.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/best_android_antivirus_app.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/sheet_gauge_thickness_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/apache_server_etag_header_information_disclosure_redhat.pdfIn PDF document text
    • http://rogofideb.onlinewebshop.net/54016097226.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_off0000f237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF237 5248 bytes
SHA-256: 0a77965628b2414ca00764cad5cee5e82f86ea3bfa2b0d116cb485f6662a3105
font_01_sfnt_off00010422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10422 11048 bytes
SHA-256: 75cefcaba38aedf51898d6240f86f6d3ed9cc40afd3f29e12027418db1c23738

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