Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c0d7deefacd049c…

MALICIOUS

PDF

77.6 KB Created: 2021-03-22 22:14:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bbb76576c82b007f82c2a9ce9e51942e SHA-1: 9d3d772193e812293bab8fa27a0c2e6120f84adc SHA-256: 2c0d7deefacd049c9fa9d857a53ebe6cf7ca8bf0cc11899d47ccb861c086846e
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 0.9956

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://pelibifir.ru/wix?keyword=school+of+dragons+clans PDF link annotation
    • https://cdn.sqhk.co/lomasamube/dghifW8/amazon_fire_stick_remote_not_working_new_batteries.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/vomidekid.pdfIn PDF document text
    • https://cdn.sqhk.co/govonesed/jc7WhbJ/eve_echoes_ship_fitting_calculator.pdfIn PDF document text
    • http://ruwosiju.getenjoyment.net/vemixiromomufipumivevo.pdfIn PDF document text
    • http://silver35.ru/41922802515g9fc5.pdfIn PDF document text
    • http://kyhni.site/damus6bdet.pdfIn PDF document text
    • http://rusadezebep.mygamesonline.org/cabbage_farming_kenya.pdfIn PDF document text
    • http://front-glass.space/engineering_plastic_sheet_philippines0udnc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366666/normal_5fc76edd5b72d.pdfIn PDF document text
    • http://1xbet-registr.site/squid_octopus_cuttlefish8px4v.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/PibLjcP/clothes_worksheets_clipart.pdfIn PDF document text
    • http://tryraisins.club/hamilton_beach_breakfast_sandwich_maker_instructionsdgol7.pdfIn PDF document text
    • http://aires.fun/20208732236ewyga.pdfIn PDF document text
    • https://cdn.sqhk.co/tibidimewako/igMDgiZ/2nd_grade_math_worksheets_mixed_addition_subtraction.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/filosofia_da_educao_livro6j4ey.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380543/normal_6054038a0d8d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418778/normal_602be49edc94f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477863/normal_60202f790e083.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/heWFqhf/bofeturab.pdfIn PDF document text
    • http://weraka.online/30185028064mywua.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450151/normal_5fca5d1fbf470.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wififeju.atwebpages.com/diccionario_biblico_adventista_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/axumite_civilization.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/awaiting_you_myths_and_hymns.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/dalowokawupawitiposako.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/jiwimugewuxijefifetidu.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/amma_amma_full_video_song.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_off0000f012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF012 5384 bytes
SHA-256: 49c7e079e70cb677df45dac71869b769dd356017e605959dd4649e1bbb93820a
font_01_sfnt_off0001025c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025C 11744 bytes
SHA-256: 85132affa8fdc85bb6503e8c67e15a46a6e82dc404a9bb94176d099b0a2588f2

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