Malicious PDF — malware analysis report

Static analysis result for SHA-256 092d032735125f14…

MALICIOUS

PDF

76.1 KB Created: 2021-05-01 23:36:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a2406cc73ed5cc720a6899ca66005060 SHA-1: b1d5500513c8190946ea08b38086b01b314f6750 SHA-256: 092d032735125f14b868701811f60ff83c05b333e53823429cf4a1ade218a784
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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://botokaw.ru/strik?utm_term=rules+of+scoring+in+spades PDF link annotation
    • http://gixipures.sportsontheweb.net/marlin_30_30_model_336_price_australia.pdfIn PDF document text
    • http://inscarusa.info/moxumuweneguwegapugbesca.pdfIn PDF document text
    • https://cdn.sqhk.co/dugubupa/fMgcajh/endangered_animals_worksheet.pdfIn PDF document text
    • https://wijinopupog.weebly.com/uploads/1/3/5/3/135323990/5284ebbe29d21.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • http://nomenowunesazoz.scienceontheweb.net/woselubiretevib.pdfIn PDF document text
    • http://dasezin.getenjoyment.net/panduan_praktis_standar_akuntansi_keuangan.pdfIn PDF document text
    • https://mewaxoraveju.weebly.com/uploads/1/3/4/8/134897470/muwixogil.pdfIn PDF document text
    • https://cdn.sqhk.co/botonerepap/je5ieSm/gudipuwerede.pdfIn PDF document text
    • http://smotrikino.fun/how_to_format_sd_card_corruptedepo85.pdfIn PDF document text
    • http://creamwalls.online/learn_how_to_draw_cartoons_bookq8uia.pdfIn PDF document text
    • https://muwamobole.weebly.com/uploads/1/3/4/3/134356931/dewanekitir.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/tevigotu/amrit_maan_trending_nakhra_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/vedidelizetovijalokip.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/centre_pivot_irrigation_system.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/fios_tv_remote_setup_failed.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/what_is_a_good_temperature_for_a_cigar_humidor.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/53507222248.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/introduction_to_computer_by_peter_norton_solved_mcqs.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/ripagukulakugikovuz.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/android_10_pixel_3_xl_battery_drain.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/react_native_show_action_sheet.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECEC 5328 bytes
SHA-256: 365453cf50032e5e544bedc9a6277fc5de85a245d9d49fcb8f9a2b126b46fdad
font_01_sfnt_off0000ff25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF25 10364 bytes
SHA-256: 361b0ea7117c64817944d19e58739ef8bc452cfc0d8b3fc866888c7c8adcc4c3

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