Malicious PDF — malware analysis report

Static analysis result for SHA-256 0588467210001ca9…

MALICIOUS

PDF

149.2 KB Created: 2021-05-07 18:47:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77091ca0aeff70a9cc655ff2a8e6ace3 SHA-1: 2efbf908f8fa7f4e028c370cdb64c400471a00bd SHA-256: 0588467210001ca9f2e9d3a9a3cf65979b236fd00ac023a30a6cdb7515c3c440
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=skyui+error+code+5+mod+organizer
    • https://cdn-cms.f-static.net/uploads/4482230/normal_600a788f1c27f.pdf
    • https://marikiwow.weebly.com/uploads/1/3/1/3/131379510/4607489.pdf
    • https://zipemulobob.weebly.com/uploads/1/3/4/5/134528333/5084045.pdf
    • http://mojadejazisapa.sportsontheweb.net/9717486331.pdf
    • http://mutuvukawawe.22web.org/2020_administering_a_sql_database_infrastructure.pdf
    • https://cdn-cms.f-static.net/uploads/4467561/normal_6027d031a4f79.pdf
    • https://fugunukotuji.weebly.com/uploads/1/3/4/5/134589730/misarorefi.pdf
    • https://ganupedudajoz.weebly.com/uploads/1/3/4/5/134586443/xamefa_masegexa_mifare_pepikemode.pdf
    • https://cdn-cms.f-static.net/uploads/4404529/normal_601f959f4a28c.pdf
    • https://static.s123-cdn-static.com/uploads/4414161/normal_5fdd0918afc13.pdf
    • https://cdn-cms.f-static.net/uploads/4411219/normal_605f2a4312d4c.pdf
    • http://woronari.getenjoyment.net/zinisesubopovi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sovogezo.atwebpages.com/breville_bread_maker_manual.pdf
    • http://gejizejaniwijef.atwebpages.com/47645261621.pdf
    • https://s3.amazonaws.com/kovibu/78568824302.pdf
    • https://s3.amazonaws.com/fuzafuzeruwit/android_and_iphone_sales.pdf
    • http://samamen.epizy.com/cara_belajar_excel.pdf
    • http://lojizigakuxit.epizy.com/gemojukusuwotegafoligesu.pdf
    • http://lugenizuridaj.atwebpages.com/natuza.pdf
    • https://s3.amazonaws.com/wanasuvedigo/62920681428.pdf
    • https://s3.amazonaws.com/nojemi/rimivu.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f87.bin
ac73822a02ad282a8d75bb66253b601603bda873388203b7d5e65a6387caf0c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F87 78396 bytes
font_01_sfnt_off0001f4c6.bin
09c09e429761b7f52838151d1523f245cdbcf2b7642aebf0489a30e4dadbfde3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F4C6 5492 bytes
font_02_sfnt_off00020778.bin
2673886da2696496135e8c32bcad2b9c06364e730654ac417b48b3fbdf6dcb7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20778 11320 bytes
font_03_sfnt_off00022ea8.bin
7c37b2c73771c39c16fff84a7567db515744b0b5a14385bd382d4e9bd3d294b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22EA8 16240 bytes

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