Malicious PDF — malware analysis report

Static analysis result for SHA-256 27f58a399de9ad2d…

MALICIOUS

PDF

84.1 KB Created: 2021-03-18 15:29:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c0246dfbcd8636b2a5a7227e11f01966 SHA-1: 511a25ea2b1e12b9a1c5afceb0b2eadb8cbce8d7 SHA-256: 27f58a399de9ad2d0e89f70eafb776255c00882512da9ddaab1c260f9f582d9f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/award?keyword=accounting+and+finance+an+introduction+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387919/normal_5fd2dfa16085b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381344/normal_5ffa8a0516e09.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481990/normal_5ff08d3d8491a.pdfIn PDF document text
    • http://levelupguild.com/eaton_ultrashift_transmission_oil1w3em.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/a_critical_introduction_to_international_criminal_law.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/paseduretebawufexivepejd0bn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444636/normal_6001219f798a7.pdfIn PDF document text
    • http://nupesupo.mypressonline.com/xikiladevif.pdfIn PDF document text
    • http://fejavodexata.getenjoyment.net/wavozozisipiloxe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464056/normal_6048c1bb72b26.pdfIn PDF document text
    • http://texewofe.22web.org/zewawu.pdfIn PDF document text
    • http://nasty666.space/por_que_o_ingls__considerado_a_lngua_francalbrra.pdfIn PDF document text
    • http://buwubaled.mywebcommunity.org/what_can_i_say_to_my_niece_on_her_21st_birthday.pdfIn PDF document text
    • http://mikazuxo.mypressonline.com/makalah_organel_sel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414678/normal_5ff0a2d1b98ce.pdfIn PDF document text
    • http://hotita.space/cite_website_chicago_formate74cx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389376/normal_5ff7838bec151.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393644/normal_5fc9e1c015b2b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zemagej.rf.gd/fepepafuxipobokelikenes.pdfIn PDF document text
    • http://xoxekojut.onlinewebshop.net/name_grid_for_national_achievement_test.pdfIn PDF document text
    • http://ropupifalapoges.atwebpages.com/rorokovajapabufimejinevig.pdfIn PDF document text
    • http://bexotomilobawa.epizy.com/ac_to_dc_power_converter.pdfIn PDF document text
    • http://modurogodolu.epizy.com/allyl_alcohol_msds.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f42f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF42F 5100 bytes
SHA-256: 004e15e294b9580d886e28b8def2b4eb99455f7d24b74d07087997ed4dc40c1f
font_01_sfnt_off000105a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105A1 11476 bytes
SHA-256: ce0cc9c530a9e866efaaa424e64ea0fbe43a42c64273ad56b0089af4f4da52aa
font_02_sfnt_off00012bd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BD1 16376 bytes
SHA-256: 54d55a7deb199a3bd870ee4e573c9a08305f3bf2b3fd22e819a2c47dc5e6d434

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