Malicious PDF — malware analysis report

Static analysis result for SHA-256 d92d03ffd65db2a7…

MALICIOUS

PDF

78.8 KB Created: 2021-05-10 01:39:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7201c72d2ae6d9c92fd45ce196b44042 SHA-1: 68bd0fd4baab68c6b102d99a9ea6fd07d0926292 SHA-256: d92d03ffd65db2a7f9613c5955825539287403ef9f50eb85a4275d27cde8a356
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to household maintenance, likely intended to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs and the overall detection by security tools indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://bologen.ru/strik?utm_term=how+to+remove+a+badger+1+garbage+disposal PDF link annotation
    • http://fenellalucynelle.info/mecanica_de_materiales_solucionariovp0l6.pdfIn PDF document text
    • http://rgtuitp.ru/behringer_xenyx_2442fx_manual_espaol639to.pdfIn PDF document text
    • http://reduslim-sito.site/black_and_decker_iron_not_getting_hotaoycc.pdfIn PDF document text
    • http://bapikiboz.iblogger.org/normalidad_y_anormalidad_en_psicologia.pdfIn PDF document text
    • http://idealslim-italiaoficial.site/33796783383nswcy.pdfIn PDF document text
    • http://organicnu.info/how_to_make_a_good_comedy_scriptzyohl.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/mhhjeig/digital_marketing_companies_list.pdfIn PDF document text
    • http://alcozerox.com/ok_drivers_license_renewal3ad0m.pdfIn PDF document text
    • http://hd-cam-mirror-up1.club/the_comedian_s_guide_to_survival_musickgae0.pdfIn PDF document text
    • http://iuts.space/how_much_time_required_for_gmat_preparation0krc9.pdfIn PDF document text
    • http://honey-love.ru/siramopazefuxixe6uut.pdfIn PDF document text
    • https://cdn.sqhk.co/pulazapusaw/dhchbjd/fish_tycoon_2_virtual_aquarium.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zonivezada/6068204214.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/onyx_plus_wireless_controller_for_ps4.pdfIn PDF document text
    • http://gigufapaw.epizy.com/barberton_makhonjwa_mountains_attractions_and_activities.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/6407224422.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/patezarapomilebutev.pdfIn PDF document text
    • http://zitejilid.epizy.com/19764360205.pdfIn PDF document text
    • http://xagubono.epizy.com/organizer_book.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/dimavilumasesikefaje.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/58726538620.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/glow_party_free_psd_flyer_template.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/kasakajuwonerorugo.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/sql_server_licensing_guide_2018.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e78c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78C 5264 bytes
SHA-256: 45ac4c9156fda214e7bc338c98588d3de5e7c9644f8cd9b30e79fdb76201fb25
font_01_sfnt_off0000f988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF988 11956 bytes
SHA-256: 946d33a8b81a4c40a55223ead9f2402bb64539bc77ff116d3f608166454133b3
font_02_sfnt_off00011f51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F51 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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