Malicious PDF — malware analysis report

Static analysis result for SHA-256 485ad74530c09715…

MALICIOUS

PDF

88.0 KB Created: 2021-03-28 01:42:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 744e07901d15349caf48c0e95b775c51 SHA-1: 6b6c3a27d011c2f12e70aa7662bcaefef44bb8a4 SHA-256: 485ad74530c097158a258a0d90a4d1a5a97c95f310e162e678237d3eb8c54df4
104 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, which is often used to download and execute malicious payloads. The presence of multiple suspicious URLs, including one directly linked to a 'fake document' lure, strongly suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://midufefew.ru/award?keyword=agency+problem+case+study+pdf
    • http://bitiwiz.medianewsonline.com/networking_basics_interview_questions_and_answers_for_freshers.pdf
    • http://lnstagramcopyrightcenter.com/13306994049hioqy.pdf
    • http://xitimudajejo.mywebcommunity.org/32111901796.pdf
    • http://vash-fasad.live/pathways_to_math_literacy_2nd_editionajdec.pdf
    • https://cdn-cms.f-static.net/uploads/4386842/normal_604667c0e2e2c.pdf
    • https://mobuverafawez.weebly.com/uploads/1/3/5/3/135346795/c8bc85d11.pdf
    • http://lajafago.medianewsonline.com/positive_affirmation_cards.pdf
    • http://filozajerezabi.getenjoyment.net/12063292234.pdf
    • http://pet-guru.shop/linhof_technorama_617_flickrc6hb5.pdf
    • http://topsalon.xyz/resumen_del_poema_a_julia_de_burgosoinx5.pdf
    • https://cdn-cms.f-static.net/uploads/4448535/normal_5fe69e48e6b18.pdf
    • http://genusadnlo.space/data_warehouse_etl_meaningrlay3.pdf
    • http://rinusiwujegabu.medianewsonline.com/30197464863.pdf
    • https://tibijipobarak.weebly.com/uploads/1/3/4/4/134493900/d3112.pdf
    • https://cdn-cms.f-static.net/uploads/4490757/normal_6021fa1333e0f.pdf
    • http://samo-katim.ru/fapexikadudufjqro8.pdf
    • http://fastcreditcheck.info/18273664923brz4n.pdf
    • http://gejokakop.mygamesonline.org/83296416710.pdf
    • https://zevupizufaf.weebly.com/uploads/1/3/4/3/134315684/e8d26.pdf
    • https://puzomukasudugun.weebly.com/uploads/1/3/4/8/134865935/1828165.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://gujimosodaza.myartsonline.com/9419791485.pdf
    • http://lonesopuw.onlinewebshop.net/fijovozip.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c70.bin
4f54af4e4973c0dea4577a28003746ed4106bcb35a8d936d1e1795c95855041c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C70 5540 bytes
font_01_sfnt_off00011f21.bin
aa0be0dafd6a998aaa9d22c2cc7c437fc166c4b5fe153da8562d36a73bcd82ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F21 10768 bytes
font_02_sfnt_off000143f8.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x143F8 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.