Malicious PDF — malware analysis report

Static analysis result for SHA-256 b785e327d9697e64…

MALICIOUS

PDF

75.9 KB Created: 2021-05-10 02:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6b7899c4667ade73b6e71f4a8ec69c1 SHA-1: 2bed3e14f4acf9466a5e74112c7d466e79fb7206 SHA-256: b785e327d9697e640bbdd8c747e19003110aea353a4a32881daf38664e45b803
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect users to malicious content, likely for credential harvesting or further malware deployment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/strik?utm_term=how+to+be+a+pediatric+nurse+in+canada
    • http://gusazunugedale.22web.org/41197435798.pdf
    • http://mofirixubutibi.getenjoyment.net/78254644519.pdf
    • http://wodekenizowa.getenjoyment.net/bernard_cornwell_books.pdf
    • https://wizenifove.weebly.com/uploads/1/3/4/3/134308138/fijaxakakepisaboso.pdf
    • http://wobafobigo.mywebcommunity.org/analog_and_digital_computer.pdf
    • http://realnoe-obshenie.online/coffee_break_germanv30ei.pdf
    • http://vuvabadiredowa.getenjoyment.net/24126606229.pdf
    • http://torgservis-rus.ru/axon_7_mini_updatevuku9.pdf
    • https://vapevaka.weebly.com/uploads/1/3/1/4/131407737/puwumekigobodu-guxinamusowinaj-gajaboketoratox-tozob.pdf
    • http://pivolirarorip.mypressonline.com/data_analysis_excel_multiple_regression.pdf
    • http://dexiserabasavo.mygamesonline.org/45044049361.pdf
    • http://devlp.club/rya_dinghy_sailing_ruleslwgcc.pdf
    • http://lenudes.com/diyanet_tecvidli_kuran_kerim_elifbanbqmt.pdf
    • http://kepukarob.sportsontheweb.net/xoronariwegikiludupapuxij.pdf
    • https://fogoranamixite.weebly.com/uploads/1/3/5/3/135390362/nisanivub.pdf
    • http://astrology-personal.online/what_states_have_romeo_and_juliet_lawsj26zj.pdf
    • https://vebuxevofarina.weebly.com/uploads/1/3/4/0/134013543/d81807a87b0f1f.pdf
    • https://rixafewokeget.weebly.com/uploads/1/3/0/7/130739987/buzufibosiledovawegu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e791dc30-71fd-4519-a75e-453748eb9c32.filesusr.com/ugd/8a5fcf_4604a2fdf9bb463b9d7fb44db21f7594.pdf?index=true
    • http://tulixiwubov.epizy.com/life_of_frederick_douglass_quotes.pdf
    • http://wawutanow.epizy.com/how_to_pair_bluedio_headphones_with_pc.pdf
    • https://18e99e0c-7034-4a8c-9069-267580a295b8.filesusr.com/ugd/b337f5_7cbfeeb34fb54b6b95192d8030327761.pdf?index=true
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaca.bin
340f8548eb5706c7cb173a62ed8ce337da4fdb253b0912b6d530cf89af3134c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEACA 5228 bytes
font_01_sfnt_off0000fcab.bin
edb301f3e2afc374e8959d0ca59fe2864741f1e0591f8b941e5f6b2ce01938ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCAB 11340 bytes

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