Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d47f111100d3a21…

MALICIOUS

PDF

79.0 KB Created: 2021-02-06 22:03:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5a4b9999fa4ad5ae44725dc83beae862 SHA-1: 921f5100593f45d839066a3b33c2d149b01ea791 SHA-256: 0d47f111100d3a210f033d56d870b86b460d61e698a2862b08f6f69f2e37fe2b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/wb?keyword=half%20wave%20rectifier%20circuit%20diagram%20and%20waveform In PDF document text
    • https://fojomifurinu.weebly.com/uploads/1/3/1/3/131378835/jufepapijubuluwer.pdfIn PDF document text
    • http://jilet2.club/final_fantasy_viii_switch_release_datev7i8r.pdfIn PDF document text
    • http://normab-id.com/cnc_wood_cutter_near_mebhey9.pdfIn PDF document text
    • http://nitalesilafatem.22web.org/cash_flow_projection_templates.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/igNgehh/67411562932.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/haVCMiL/dog_fighting_quarterback.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/6jgdNMY/konesky_wifi_smart_switch_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/aUDiePK/best_lagu_didi_kempot_terbaru_2018_mp3.pdfIn PDF document text
    • https://cdn.sqhk.co/mevexobuzur/jigdfq0/39976537864.pdfIn PDF document text
    • https://nawivavunof.weebly.com/uploads/1/3/4/6/134669961/09ac2fa.pdfIn PDF document text
    • https://somirurawepaf.weebly.com/uploads/1/3/1/3/131381963/buwoxerigako_morurenusokif_tuzus.pdfIn PDF document text
    • http://otomail.business/udp_glotorrents._pw_6969_announlybj8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gufaxepelirub.rf.gd/dejaxivejos.pdfIn PDF document text
    • http://punazujekir.epizy.com/bawara_mann_maya_nadhi_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/92007682558.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/61739852151.pdfIn PDF document text
    • http://jimanujomubil.epizy.com/36701805264.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/maharshi_audio_songs_free_naa_songs.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_off0000f88b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF88B 5276 bytes
SHA-256: 0dbff6ee057c8913c66dd9a12b364066d518cc491aa990e267c3712802664c89
font_01_sfnt_off00010a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A85 10588 bytes
SHA-256: 1bfe7eb645362ce14f4fd7388751e20115aeed0fa1bc842d6268a1651239cbb9

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