Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae8410bea9704ec…

MALICIOUS

PDF

76.7 KB Created: 2021-04-12 06:14:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 29aa18112118d53ea4f4c4d868879db2 SHA-1: 113193b308ecd4f8b15fc6a92566a21b7ddf27a0 SHA-256: 2ae8410bea9704eccc0f025a4baa08abfcc55ad8fa7066144cf8cece973315cf
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9992

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://jacksth.ru/strik?utm_term=how+to+get+paid+dividends+every+day PDF link annotation
    • https://nuxutesinof.weebly.com/uploads/1/3/1/4/131437012/koriloxo_bufupasak_dizajogifuti_vefusajeragim.pdfIn PDF document text
    • http://mon-fortuneo.best/96409701469gc233.pdfIn PDF document text
    • https://sivagodumojuji.weebly.com/uploads/1/3/4/2/134235915/2847451.pdfIn PDF document text
    • https://fuxexitir.weebly.com/uploads/1/3/4/0/134098624/6347469.pdfIn PDF document text
    • http://zokugorevat.mywebcommunity.org/unable_to_edit_in_adobe_acrobat_reader_dc.pdfIn PDF document text
    • http://apparently-home.com/kazudevufujuravimotijizol3ud4.pdfIn PDF document text
    • http://pop-marketplace.ru/gafexolifowthrh9.pdfIn PDF document text
    • http://sale50.pro/maxozifududonutaiu8me.pdfIn PDF document text
    • http://samettemiz.xyz/74954085135y450j.pdfIn PDF document text
    • https://benikadavax.weebly.com/uploads/1/3/5/9/135964790/gabekuw_makapi.pdfIn PDF document text
    • http://midarujiwuvi.mygamesonline.org/92867633853.pdfIn PDF document text
    • http://rimarilomikozu.medianewsonline.com/abrogation_in_the_quran_and_islamic_law.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://05e27880-d5e1-4d3d-8428-ba943e9300bc.filesusr.com/ugd/b56239_f399211425f242c787c3452d87c1202e.pdf?index=trueIn PDF document text
    • https://2978fa49-077f-489e-bef2-0e177375ffd3.filesusr.com/ugd/50ba8f_01075a2e736d4fa991bce7d9bcaa6f94.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/33909573-7397-4f3e-8c0b-1d03353de97b/somewhere_over_the_rainbow_lyrics_eva_cassidy_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abc7d22d-ab82-41e9-9b30-985ae3c5d4f1/kadimirumozuf.pdfIn PDF document text
    • http://wufagezigedo.onlinewebshop.net/how_to_reset_iphone_4_with_broken_home_button.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/nujinujilenoninino.pdfIn PDF document text
    • https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_f6f93a4b7ee642dba3b99e176b59157b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jizubisetebof/dikusesinotalazo.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/filmorago_free_pc.pdfIn PDF document text
    • https://724418e0-3ace-43c1-abd8-628b4820fc71.filesusr.com/ugd/6df952_a260ea4af08b40e7b29aef3cc52b06af.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/dish_network_guide_list_all_channels.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_off0000ed31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED31 5308 bytes
SHA-256: 054810a8aea309d0386c7b8a378588f516199db1d470da26a72d3e99da708040
font_01_sfnt_off0000ff6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6E 10980 bytes
SHA-256: a450d6d1311db081f7ddb04e5a69db5a0e58beddd89069771eda6ad2e91fdc6c

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