Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5af29c106e9b674…

MALICIOUS

PDF

80.8 KB Created: 2021-03-30 11:57:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f2d578ecdf14c229c5609bc713f9df88 SHA-1: bdbe91a64a463ff2ff1dc04083b8a64f7f21bfc2 SHA-256: e5af29c106e9b6749560a50f059358bd1f515ea22fb0e16e6d7e937a6ec3653c
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 0.9961

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/aws?utm_term=how+to+know+whether+a+bond+is+polar+or+nonpolar PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4457620/normal_60286c38d876e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490377/normal_6033b7209fd08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411252/normal_6044210231719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481161/normal_605f5bebb504a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366041/normal_6006f9c2bccb5.pdfIn PDF document text
    • https://cdn.sqhk.co/besimiwi/cjhGMFH/pejojezovabekajap.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/ja8qz2N/schoolgirl_supervisor_extended_shop.pdfIn PDF document text
    • https://cdn.sqhk.co/xobadata/gAichBr/30445531022.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/pusixa/how_to_make_45_degree_elbow.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/african_woman_song.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/82026673959.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/mass_haul_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/vetigo.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/gepupugipatina.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/what_are_some_social_issues_today.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/www_new_hd_movie_free_khatrimaza._com.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/citizenship_application_form_minor.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/que_es_anemia_falciforme_en_nios.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/greenland_ice_sheet_hides_huge_impact_crater.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/words_that_start_with_zur.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/punarikok.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/missguided_front_tie_knot_satin_dress.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/88663048492.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/sony_rx100_vii_manual_focus.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/what_affects_enthalpy_change_of_a_reaction.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/52183417502.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_off0000fbd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD4 5304 bytes
SHA-256: 1df5109bf6914d99fca7f0b2bfc871506e6da7cc6a162d708efb8d34e5f9158d
font_01_sfnt_off00010dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDE 11488 bytes
SHA-256: 4b081e94fb12d5c50f650b9df8a34962754a962e74ae706e1d325f862bc286f9

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