Malicious PDF — malware analysis report

Static analysis result for SHA-256 702938419bac5231…

MALICIOUS

PDF

82.3 KB Created: 2021-03-22 14:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f9e28da8217b009e6961f15fe5046b81 SHA-1: 117f2421475d50ea455074dafa4e06a8c4bf3199 SHA-256: 702938419bac5231efcbd5c10c029e2a75eb303435f142246177f7f19e9b1c90
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 0.9998

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://soxebez.ru/strik?utm_term=the+watsons+go+to+birmingham+chapter+14+summary PDF link annotation
    • http://wosozage.mypressonline.com/bukezovotitekodegol.pdfIn PDF document text
    • http://nitupewefo.iblogger.org/halcones_de_venta_libro_descargar_gratis.pdfIn PDF document text
    • http://nusowutevu.getenjoyment.net/sharp_portable_air_conditioner_model_cv-p10pc.pdfIn PDF document text
    • http://xepuxupipe.mywebcommunity.org/9849770229.pdfIn PDF document text
    • http://wisujaf.iblogger.org/flsmidth_annual_report_2018.pdfIn PDF document text
    • http://xojosagefe.22web.org/orthographe_franais_gratuit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8f20b4bd-83f7-4a55-8c6f-e9501e2e061c.filesusr.com/ugd/c1c462_809d39a967054bf88c55fdb8fc6a46d8.pdf?index=trueIn PDF document text
    • http://gelaleted.rf.gd/62516568637.pdfIn PDF document text
    • http://domuromu.atwebpages.com/josatozezeb.pdfIn PDF document text
    • http://donixug.epizy.com/resnick_halliday_krane_answers.pdfIn PDF document text
    • https://e01ac51c-fc44-4c3f-9f1e-b46990a10d58.filesusr.com/ugd/89b1bc_8361ef951f94438dbb33818d2d35bfe0.pdf?index=trueIn PDF document text
    • https://0d555108-1732-4721-8d72-76d747b2053a.filesusr.com/ugd/1b0481_699dadcfebed43a89847f76dbb13bff4.pdf?index=trueIn PDF document text
    • http://senusekavopodu.rf.gd/what_does_conceptual_unity_mean_in_art.pdfIn PDF document text
    • http://xupasafagimi.rf.gd/windows_10_1903_may_update.pdfIn PDF document text
    • https://80c8fd16-4cf8-4f9f-b52b-d6c956df8f3b.filesusr.com/ugd/1a94e8_3617965296984304adbd1f839a5b46ad.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/tetodezinaferozugesesi.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/98343568505.pdfIn PDF document text
    • https://34e51215-b586-4e01-b3ea-a219475a7b91.filesusr.com/ugd/46481b_2b34aa295161413193bed9ee4fe028bd.pdf?index=trueIn PDF document text
    • https://952d9f4b-853a-4e85-af28-23c4d489d487.filesusr.com/ugd/8db125_bd01fc000d1e4f4bb3f6fc14927ed7ec.pdf?index=trueIn PDF document text
    • http://mojedebebetum.epizy.com/hot_wire_anemometry_principles_and_signal_analysis.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_off000102a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102A9 5736 bytes
SHA-256: 672dfd8fbaac9e839fc0491056eb6cf240c9aef08e54b7b44c517c036bdead86
font_01_sfnt_off0001162b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1162B 10996 bytes
SHA-256: 67d3add74afc0dbfa002ac70566139856a9785b96f7ebe3a03e1a5b1b7932139

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