Malicious PDF — malware analysis report

Static analysis result for SHA-256 f29c6ca5df56d27b…

MALICIOUS

PDF

78.8 KB Created: 2021-06-11 02:25:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3cc5a07ff8221a750bb58952920ce3ae SHA-1: 1ae27a05831b2be00433de92e11bf013c26b2775 SHA-256: f29c6ca5df56d27bac4c26d2e29210405a6fbd42920388faa7e1e2ef6735eab7
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9990

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 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://archism.ru/pbw?utm_term=pogo+pokemon+go+android PDF link annotation
    • https://gusemotasejodab.weebly.com/uploads/1/3/2/7/132741535/wanatadowuto-ribevaniri-vogojisa.pdfIn PDF document text
    • https://gumelajijepepa.weebly.com/uploads/1/3/4/6/134639918/514f36c9e23.pdfIn PDF document text
    • https://pabimoju.weebly.com/uploads/1/3/3/9/133997489/desidabigomuzipusox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dazokarodu.pbworks.com/w/file/fetch/144789741/dark_souls_best_divine_weapon_for_nito.pdfIn PDF document text
    • http://vawijoj.pbworks.com/w/file/fetch/144472947/adverse_drug_reaction_reporting_system.pdfIn PDF document text
    • http://fisakujimet.pbworks.com/f/meseri.pdfIn PDF document text
    • http://wizepexu.pbworks.com/w/file/fetch/144648915/2389073870.pdfIn PDF document text
    • http://daxulesep.pbworks.com/f/mr_bean_full_movie_mp4_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0121365-3ae1-478e-8e9f-b2c2997f940a/brother_hl-l2305w_toner_reset.pdfIn PDF document text
    • http://legesir.pbworks.com/f/html_css_menu_bar_templates_free_download_responsive.pdfIn PDF document text
    • http://nusometa.pbworks.com/f/active_and_passive_transport_summary.pdfIn PDF document text
    • http://fesabijege.pbworks.com/w/file/fetch/145034439/25443980471.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3d88be7-818f-4c07-98f4-89f092b26875/pezogexelitejotu.pdfIn PDF document text
    • http://lexibitite.pbworks.com/w/file/fetch/144533478/15511412625.pdfIn PDF document text
    • http://pusavivo.pbworks.com/f/37155031435.pdfIn PDF document text
    • http://duziruromeja.pbworks.com/w/file/fetch/144653631/what_is_the_most_expensive_hotel_room_in_the_united_states.pdfIn PDF document text
    • http://sajateves.pbworks.com/f/riponekerakuj.pdfIn PDF document text
    • http://paderukut.pbworks.com/w/file/fetch/144756888/what_solvents_is_benzoic_acid_soluble_in.pdfIn PDF document text
    • http://lijunew.pbworks.com/w/file/fetch/144787218/pijesupovupasoxovo.pdfIn PDF document text
    • http://lopofemusun.pbworks.com/f/math_worksheets_grade_5.pdfIn PDF document text
    • http://pevaludim.pbworks.com/f/how_much_avon_commission.pdfIn PDF document text
    • http://luwapoveduvi.pbworks.com/f/simple_past_tense_exercises_with_answers_doc.pdfIn PDF document text
    • http://tusawijer.pbworks.com/w/file/fetch/145084077/catcher_in_the_rye_chapter_summaries.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e93fee50-20dd-4f95-81c6-318db5428e6e/63245719525.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ead5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD5 2856 bytes
SHA-256: 841082fbe1fc2f31ec1479b5218ae93a4b9e9b20f27f96e2404061247a91a9a2
font_01_sfnt_off0000f4fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FD 5132 bytes
SHA-256: 769d4d9b2fb481de3e49d10511fa4e8a007880e7a730c8f6bd2e7a1fcc088a8c
font_02_sfnt_off0001065f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1065F 11664 bytes
SHA-256: 9061989c54b7a294d598f78d647c834c91646aeb1c7f1a6514e5740c7af054d6