Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9d984420e592398…

MALICIOUS

PDF

89.4 KB Created: 2021-03-10 05:29:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89acbedbd1a6baec03c20531ca061a20 SHA-1: 7de000251ce78a37ec5742a09071b6b0143c6a3d SHA-256: f9d984420e592398d5b8627c457ca4e40fa14f7777e36482302315f3023a2a37
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified as malicious by ClamAV and an ML classifier. The document body is heavily obfuscated, but the presence of the external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or to download further payloads. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://soxebez.ru/award?keyword=blue+mountains+australia+map+pdf
    • http://afracheat4.xyz/8960966320799z4s.pdf
    • http://arbitestpark.xyz/what_is_the_order_of_one_of_us_is_lyingr6x23.pdf
    • http://gopidap.scienceontheweb.net/ladosorutunotoxela.pdf
    • http://xevusezes.medianewsonline.com/data_structures_in_cpp_tutorial.pdf
    • http://flowerport.store/first_aid_incident_report_form_ontariom6dr1.pdf
    • http://save50.pro/zapupupizunazxdycf.pdf
    • http://bumasujofoj.getenjoyment.net/95287919636.pdf
    • http://zelafagilu.iblogger.org/lebesilodixodawelunarasiv.pdf
    • http://vinuporabomod.iblogger.org/asp.net_core_mvc_refresh_partial_view.pdf
    • https://wegonugu.weebly.com/uploads/1/3/4/0/134040733/6295526.pdf
    • https://xifuvago.weebly.com/uploads/1/3/0/8/130813557/6859643.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zesafemumibow.myartsonline.com/sun_joe_spx3000_will_not_turn_on.pdf
    • http://gekidajup.epizy.com/42806363425.pdf
    • https://s3.amazonaws.com/tejuvonixag/snake._io_game_apk.pdf
    • http://jemekovivokuvup.epizy.com/ignou_assignment_form_online.pdf
    • https://s3.amazonaws.com/kiremefegonar/guided_tours_sao_miguel_azores.pdf
    • http://pitudug.epizy.com/lopixeferuw.pdf
    • http://bajobakokela.epizy.com/bengali_movie_annadata.pdf
    • http://rixexovujawuvow.rf.gd/how_to_activate_proform_ifit.pdf
    • http://jaruxuj.rf.gd/autocad_map_3d_book.pdf
    • https://s3.amazonaws.com/lodazojamuva/worksheets_for_pre-_intermediate_level.pdf
    • http://domawodevanaga.rf.gd/83178186333.pdf
    • http://lozereluke.rf.gd/flight_test_guide.pdf
    • https://s3.amazonaws.com/degisapemifa/data_analysis_plus_excel.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000121d4.bin
2838b4e8e84141699ff06e3e1e0a9899ed436f85ab7640b7c2c53b61d2c4ff0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121D4 5236 bytes
font_01_sfnt_off00013388.bin
a595225f527bfeed36171265850dd8d7000d24477fbf66edfe6940c4b072010a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13388 10656 bytes

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