Malicious PDF — malware analysis report

Static analysis result for SHA-256 7460953526d2fe41…

MALICIOUS

PDF

78.0 KB Created: 2021-04-13 21:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 75a1b8722f7f78b78c7d4ea63dff5ce1 SHA-1: daca36c616b9b5ae1e307e734cec3a1a6aad4d63 SHA-256: 7460953526d2fe41662fa1009d6d9be39320c20fc0f48913a0da0a2cb4354efb
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dafemum.ru/strik?utm_term=cisco+catalyst+2950+factory+reset PDF link annotation
    • http://titoto.xyz/gunenogufawezppm.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/gBvshdH/virus_the_game_adenoids.pdfIn PDF document text
    • http://dvigatel.guru/mercury_15_hp_four_stroke_owners_manualss86b.pdfIn PDF document text
    • http://upgrade4me.com/rofakikowulobulof4988s.pdfIn PDF document text
    • http://help-business-media.com/gebagoda0dbdm.pdfIn PDF document text
    • https://cdn.sqhk.co/vekazedivipi/dggjg5Y/cowbellpedia_competition_prizes.pdfIn PDF document text
    • http://netlysy.online/personalized_blank_sheet_music_bookcyppw.pdfIn PDF document text
    • http://busurman.space/celda_cubica_simplekttdp.pdfIn PDF document text
    • http://lazerepil.site/bilimsel_aratrma_yntemlerirfjnb.pdfIn PDF document text
    • http://reform-st.ru/horton_hears_a_who_full_movie_123movieskqfhu.pdfIn PDF document text
    • http://zahlungsservice-ch.site/brother_mfc_7840w_printer_scan_toh10ee.pdfIn PDF document text
    • http://o-karte-kopilka.com/zokamuwobagixe7871i.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/ialhahg/48009444939.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/fajixe/xomekiluriditibinozebe.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/how_to_find_vif_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/adda_247_june_2019_current_affairs.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/software_update_garmin_gpsmap_62st.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/water_cycle_diagram_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2248c371-dac8-4bb1-86b6-37e7c3106d8c/what_valiant_comics_are_valuable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17370d65-3878-498c-b2d6-b7e005d18d19/buwelavo.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/how_covid_19_has_affected_employment_in_ghana.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/82446440652.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/ejemplo_de_dialogo_entre_dos_personas_para_nios.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_off0000f2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C7 5436 bytes
SHA-256: 3eb9ca92293af90138c7e173e160fb6f6229e13869fce73514076cc33c882025
font_01_sfnt_off0001055a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1055A 11284 bytes
SHA-256: 256417318726be08b3bee038fdf1b1e29d0570d093209265fd5a5e2b7fe36ed9

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