Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ce6acc0d10787d…

MALICIOUS

PDF

77.3 KB Created: 2021-03-22 06:47:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 76a905cfdbfcadd2bf36e4cc76be0811 SHA-1: 2d1849f2e211ca02d66eb83643389ac8fb77cd4f SHA-256: f5ce6acc0d10787ddfad718577855179fc3e47fdb3f4547e0c0dc03d8c5d5321
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external websites, many of which are hosted on disposable domains, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious content or phishing pages. No scripts were extracted, but the presence of many suspicious URLs points to a web-based lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/award?keyword=amazon+web+services+cloud+computing+pdf PDF link annotation
    • http://sibatike.getenjoyment.net/jumbled_words_with_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/ligumorik/YLzhgoa/piramidilupunivazejefijep.pdfIn PDF document text
    • http://idealicaitaly.site/thermador_refrigerator_column_installation_instructionser59e.pdfIn PDF document text
    • http://sfhgfje5df.xyz/how_to_trade_forex_in_south_africawbsdw.pdfIn PDF document text
    • http://demask.space/management_des_entreprises_coursoi42t.pdfIn PDF document text
    • http://about-igsupport.com/duperawapepimewejaxadinx4kd.pdfIn PDF document text
    • https://cdn.sqhk.co/dodiniwotud/hjhnjfO/arthouse_brick_wallpaper_white.pdfIn PDF document text
    • https://cdn.sqhk.co/xupodafib/EjbDugf/39182136169.pdfIn PDF document text
    • http://copyrightprivacy.site/brain_teasers_adultshuuci.pdfIn PDF document text
    • http://sotinifox.22web.org/morphology_of_brachiopods.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/hekijhj/okay_okay_imma_admit_it_lyrics.pdfIn PDF document text
    • http://sazulido.medianewsonline.com/wopolavotevusef.pdfIn PDF document text
    • http://zabavnyi-slon.ru/xefabe6vvli.pdfIn PDF document text
    • http://pewadulojuba.mypressonline.com/buderus_gb172_t50.pdfIn PDF document text
    • http://reactivaperu-viabcpi.com/hmp_hewell_reportcchx3.pdfIn PDF document text
    • http://gogotaf.iblogger.org/what_are_the_steps_of_the_engineering_design_process_in_order.pdfIn PDF document text
    • http://helplnstagramoffice.com/89890649227wk17.pdfIn PDF document text
    • http://martakkord.ru/mars_is_heaven_ray_bradburyp9qum.pdfIn PDF document text
    • https://cdn.sqhk.co/fefowofuk/5cngjai/real_gangster_crime_simulator_3d.pdfIn PDF document text
    • http://girlita.space/comparative_market_analysis_cma_report0jfql.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sajajuladepume.rf.gd/american_history_textbook_11th_grade.pdfIn PDF document text
    • http://vokanagupak.rf.gd/jajiji.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_off0000ee37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE37 5808 bytes
SHA-256: f14f084c99cd3714e7e46cec328d92ca8be3bc80ed0ccf1cfadfc21496f3854b
font_01_sfnt_off00010202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10202 11040 bytes
SHA-256: 1bffc4af29a1d75f0dff45236b02cc333b36620d6cdd5d7495cc037c9cc8a288

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