Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d1e827c6e05b846…

MALICIOUS

PDF

72.4 KB Created: 2021-03-18 14:11:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c54944575666c042e590a24a32a61b50 SHA-1: 8ec16ab4d5214d0bb88d23d5eb580429ea83bb18 SHA-256: 1d1e827c6e05b846f12e1c8b2c99a863e8388f434504788de3f6d0fc0e1b78cc
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to presentation templates.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/123?utm_term=literature+theme+powerpoint+template
    • http://italywow.space/what_is_a_metaphorical_self_portrait0xasi.pdf
    • http://legovimoz.iblogger.org/accounting_information_system_chapter_1.pdf
    • http://habirovradik.ru/natunovapikiko95fva.pdf
    • http://vipadminler.org/tarugikatobugonaxugexusesje14.pdf
    • http://creditscorehelp.info/kirudefesoduduj4510f.pdf
    • http://zoo-taxi.site/much_ado_about_nothing_insight_text_guideskzeo.pdf
    • http://spain50off.info/714962129086sopx.pdf
    • http://tihefers.online/united_nations_demographic_report_2019b1329.pdf
    • http://bilabugova.iblogger.org/how_to_create_a_user_manual_in_word_2016.pdf
    • http://puragofivirafux.iblogger.org/metales_alcalinos_terreos.pdf
    • https://jaroxifapo.weebly.com/uploads/1/3/1/6/131636664/395843.pdf
    • https://panasijizikefiz.weebly.com/uploads/1/3/4/4/134446590/pebeji_sokonazoxidit_nanimebupurega.pdf
    • http://habercigo.com/futakofulijoze3o0at.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/futamo/34807623385.pdf
    • http://wugowetanunineg.rf.gd/fefajarizewafokedadunog.pdf
    • http://sewoxoxitif.rf.gd/free_bootstrap_templates_for_inventory_management_system.pdf
    • https://s3.amazonaws.com/panokojol/rimezusona.pdf
    • http://bofujenarabi.rf.gd/fokunopapibijo.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_off0000dbc4.bin
49db935b0caf57c4a945761297dadeaf82417d80502b0c80f308a248d78080eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC4 4912 bytes
font_01_sfnt_off0000ec5d.bin
463dc895c9a60491e163d04d1159157a7fdd6400f12b8475a6aa9ea77cdbaec4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5D 11168 bytes

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