Malicious PDF — malware analysis report

Static analysis result for SHA-256 35d8322962bc5a5e…

MALICIOUS

PDF

81.1 KB Created: 2021-03-19 05:47:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4509965b255e1a24a633aec01b8ad95c SHA-1: 4d1168b95c32d8c3898943ed0a61171d3ccc5a3e SHA-256: 35d8322962bc5a5e6a96c9a0c50e32220104117c6c49b1371704ea018a856e41
96 Risk Score

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 0.9993

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://leonvi.ru/award?keyword=autobiography+of+a+banyan+tree+in+1500+words+pdf PDF link annotation
    • https://cdn.sqhk.co/xujutitula/dgf7jcU/15683921026.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/ansys_workbench_13_static_structural_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/mopewedote/bhdhfYY/hideaway_pizza_owasso_prices.pdfIn PDF document text
    • https://pibefugaradaxo.weebly.com/uploads/1/3/1/3/131398186/jitajuzexokavowiz.pdfIn PDF document text
    • http://lnstagramcopyrighthelps.com/70174050784hgk2.pdfIn PDF document text
    • http://garant-ritual.online/weebly_for_teachersipy45.pdfIn PDF document text
    • https://cdn.sqhk.co/tudobele/Yifgggi/73274052605.pdfIn PDF document text
    • https://fifubinagate.weebly.com/uploads/1/3/4/8/134854053/desudisipoloru_zunebejusefik_lipogaperiz_webejo.pdfIn PDF document text
    • http://mon-cmso.best/zofusorufojidaxajubazuxems.pdfIn PDF document text
    • https://tewiwumorivare.weebly.com/uploads/1/3/1/4/131409909/pazaw.pdfIn PDF document text
    • https://votebefi.weebly.com/uploads/1/3/4/7/134715150/gawugil-getavexesim-wivopadar.pdfIn PDF document text
    • http://kujinatazema.sportsontheweb.net/american_history_textbook_college.pdfIn PDF document text
    • https://nenesezeli.weebly.com/uploads/1/3/0/7/130775424/7361419.pdfIn PDF document text
    • https://vugaxedugu.weebly.com/uploads/1/3/5/9/135971543/61dd0fab3.pdfIn PDF document text
    • http://romeita.fun/dovesoximx1.pdfIn PDF document text
    • https://kaseledewa.weebly.com/uploads/1/3/2/6/132682802/luxomisamizuvasije.pdfIn PDF document text
    • https://tisolalaw.weebly.com/uploads/1/3/0/8/130814234/8201f632e38.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/calculo_integral_y_diferencial_granville_resuelto.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/free_ebooks_learning_russian.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/letra_del_toque_de_bandera_e_himno_nacional_mexicano.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/zonukasumujomiribe.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/95648650532.pdfIn PDF document text
    • http://gifidabula.atwebpages.com/traduction_anglais_franais_texte.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFEA 5912 bytes
SHA-256: 749685b4b2d4cb2b380070781705f46d1428e29890399d49e82f37a53489d786
font_01_sfnt_off00011427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11427 10224 bytes
SHA-256: 35c678394aaeca88fbd09faa558f9f5f6b567acdc52a26c911e1b76e211b699b

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