Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ebea9dfa93db518…

MALICIOUS

PDF

71.1 KB Created: 2021-03-04 09:37:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0577ff43500f64f73b1ed1ece18cefd6 SHA-1: 749271a2feb9bbc856b0f517b780591c98f01d34 SHA-256: 6ebea9dfa93db51870d7f248e4d692bf59ccc371d8a74f5cb983ddb0787ba72e
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 0.9998

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://bologen.ru/wix?keyword=maytag+washer+repair+manuals+online PDF link annotation
    • http://chambre.xyz/download_pmbok_6th_edition_freendi5l.pdfIn PDF document text
    • https://cdn.sqhk.co/litonesi/ggenME2/59814932744.pdfIn PDF document text
    • http://btsworld.org/zobuzolixudibe17phh.pdfIn PDF document text
    • http://piredvizhnik.com/how_to_change_oil_pan_gasket_on_2008_dodge_avengerde6p0.pdfIn PDF document text
    • https://cdn.sqhk.co/pememobuwir/5jdOpid/lemewiji.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/hbrkjep/riders_on_the_storm_the_doors.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/vezumobigodub/wixugugawor.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/13201138261.pdfIn PDF document text
    • http://supapimegem.rf.gd/what_does_a_microsoft_certified_systems_engineer_do.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/amsterdam_transportation_map.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/catasterismi_eratostene.pdfIn PDF document text
    • http://pijutisiguzog.rf.gd/how_do_i_fix_4e_error_on_my_samsung_washing_machine.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/diazepam_actavis_patient_information_leaflet.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/37398319992.pdfIn PDF document text
    • http://nudegew.rf.gd/what_is_the_meaning_of_phrase_much_ado_about_nothing.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/31752814362.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/40751063918.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_off0000da9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9A 5432 bytes
SHA-256: ef35c32c9e64c1a439dee2dc42256f07b1d6dda014414cecef631a3341db3e49
font_01_sfnt_off0000ed0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0F 9928 bytes
SHA-256: 6edf943bdf1301c80dfe9df078c56789eb31c1a0fe1d30abfa640da25932d7ca

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