Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3375b3a9f90de4e…

MALICIOUS

PDF

80.3 KB Created: 2021-04-19 14:01:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9941012173b1d358f92e182d00474089 SHA-1: 87038fab22164ba01a42836ed321d97a62826d63 SHA-256: c3375b3a9f90de4edf3b358634d569090defbcd61df7fc68cbdb085ed6bff4a5
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 0.9992

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://zajinet.ru/strik?utm_term=what+she+left+behind+tracy+bilen PDF link annotation
    • http://hydrofthol.space/samsung_55_inch_led_smart_tv_series_8l7j2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447087/normal_605803c29706c.pdfIn PDF document text
    • http://chambreapp.xyz/48487652981lexw4.pdfIn PDF document text
    • http://ionatr.fun/what_are_the_nutritional_needs_during_pregnancy_and_lactationd677b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428038/normal_5fee14579d4f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465007/normal_5fe9da13bdd26.pdfIn PDF document text
    • http://zabidegelid.iblogger.org/bofrost_katalog_2020_download.pdfIn PDF document text
    • http://particulier-societegenerale.xyz/nice_guidelines_dyspepsia_2015o0hel.pdfIn PDF document text
    • http://hayatevesigar.online/company_of_heroes_2_complete_collection_trainerx4ehu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xowofalofuzuxis.epizy.com/que_se_debe_cenar_saludablemente.pdfIn PDF document text
    • http://jetetejev.rf.gd/mepeze.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/what_is_an_audit_dd_number.pdfIn PDF document text
    • http://milasumumalun.epizy.com/87675628981.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/wwe_raw_results_recap_bleacher_report.pdfIn PDF document text
    • http://faxunarin.epizy.com/zajudewirupiwitokupawosa.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/firefox_for_mac_older_versions.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/bofokud.pdfIn PDF document text
    • http://natodik.epizy.com/72123521583.pdfIn PDF document text
    • http://defurujaligat.epizy.com/20543575893.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/jb_s_wear_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/87004030529.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/dyson_cinetic_big_ball_animal_operating_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/stand_by_me_lyrics_and_chords_oasis.pdfIn PDF document text
    • http://finemadajurene.epizy.com/75697039887.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_off0000fa26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA26 5364 bytes
SHA-256: 46692a0d30a03d2515ea55df20bf54eb3344e8ab2f44181d9b5872d57edadf36
font_01_sfnt_off00010c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C71 11840 bytes
SHA-256: 96c40ed10480bff18ff3c9d2a32affc0c93436b8c56bcdfeb27df25f33bca92e

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