Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d00572ef496f95b…

MALICIOUS

PDF

95.8 KB Created: 2021-05-06 23:11:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2023-12-10
MD5: 329989d4b8e7141ebe421d9832f4ae82 SHA-1: 420223ac9dcc25eb37dd251b933bad681a029d3f SHA-256: 9d00572ef496f95b92005aae5a427f2339de28e4f04fb0cb8f61725643bbd8b3
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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.
  • 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://baarspo.ru/strik?utm_term=nancy+drew+tv+series+characters PDF link annotation
    • http://on24-system.club/42195042362kad9p.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/79097682486.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/doodle_god_answers_unblocked.pdfIn PDF document text
    • http://fishland.store/isabel_allende_la_ciudad_de_las_bestias_trilogiaa0r8b.pdfIn PDF document text
    • http://loleveze.iblogger.org/space_4d_cards_free_download.pdfIn PDF document text
    • http://legalvictory.group/zegilozezazufuhz8z0.pdfIn PDF document text
    • http://xefapase.iblogger.org/42054862660.pdfIn PDF document text
    • http://puwexakibo.iblogger.org/banjara_video_song_number_padal_ing.pdfIn PDF document text
    • https://taleputara.weebly.com/uploads/1/3/4/3/134305900/gogawefol.pdfIn PDF document text
    • http://temezisabekazev.iblogger.org/86438403478.pdfIn PDF document text
    • https://texanajak.weebly.com/uploads/1/3/4/0/134018539/baregexefawa-wegepa-sifujidegux.pdfIn PDF document text
    • https://xagapetudiza.weebly.com/uploads/1/3/4/6/134686513/toraba-somunogebomis-bitupan-rigaxebepaze.pdfIn PDF document text
    • http://uablog.site/minecraft_seed_map_viewerve1t4.pdfIn PDF document text
    • http://thiswaytovogue.com/tutorial_unreal_engine_4_espaol88th2.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00013630.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00013630.bin)
    • http://bozomeza.rf.gd/555793017.pdfIn PDF document text
    • https://07d68bf2-0661-47e2-9ffe-eae068a071af.filesusr.com/ugd/fef806_fb57a05d21414e15bf7cb353ed8dba9f.pdf?index=trueIn PDF document text
    • https://a1c9bafd-2917-4c1b-b79c-a4b44a941470.filesusr.com/ugd/f0f215_91f82480881f4d9c83e8e81b59b9b798.pdf?index=trueIn PDF document text
    • https://c580675e-8888-491d-8c80-3106eaac86fb.filesusr.com/ugd/c8a981_bca0853109e04b2299d68387ac3fe983.pdf?index=trueIn PDF document text
    • https://51da6a7d-ee05-4a49-87ee-1b74af3aeb07.filesusr.com/ugd/b80405_e9adcb7a0a9640e297f3af92d598f2af.pdf?index=trueIn PDF document text
    • http://kuxogazixup.rf.gd/talozikala.pdfIn PDF document text
    • http://xidesaso.rf.gd/borning_cry_sheet_music.pdfIn PDF document text
    • http://jufomotapi.epizy.com/20901784954.pdfIn PDF document text
    • https://a50dbba5-e4fd-40cc-afa9-a45495a5accf.filesusr.com/ugd/7f929b_2abb839cdcf945abb965bc0f2cdc542f.pdf?index=trueIn 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 extracted file (font_00_sfnt_off00013630.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13630 5216 bytes
SHA-256: 9cfa3ae8c65cc0f6945914660d57f4b5e1c15cd2c8492fb88023de3dfef0b87d
font_01_sfnt_off0001480a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1480A 12216 bytes
SHA-256: 3ca7670ab0a34fda2238461541442139b32a19088d6566bce9a405492b868e0c