Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ece34ad1cc0d410…

MALICIOUS

PDF

73.8 KB Created: 2021-07-13 23:19:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 36daefcbd3e10fd95adc1496ef012ca2 SHA-1: e71433350a47961263f26847129014ee9ddbb87a SHA-256: 7ece34ad1cc0d4103a22cd86358cf14d22431e807093aa5d5346c523cb4f2646
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs, although some are marked as benign, suggests an attempt to redirect the user to malicious content. The PDF structure and heuristics point towards a phishing or trojan delivery mechanism, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8907

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://feedproxy.google.com/~r/razvivatel/yapz/~3/IdU8rIDf9lQ/square?utm_term=suzanne+fogarty+chapin
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e819a551cb2a526cff00e7/1625823653775/piwukolakev.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec7fabbdd82073f6feae88/1626111915235/rifexesusu.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e814b5d0799e4214c29aad/1625822390147/taxi_driver_full_movie.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8185d52059f1ec1e6b385/1625823325614/crossword_search_answers.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec9bd85f8bf9690720104d/1626119128063/p_and_n_type_doping.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8d7d8661f643e3a12e433/1625872344125/fun_facts_about_volcanoes.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c40f.bin
e9bc2fee3bb072c15c745f68fe438a90bf360ec29151e27c8b180f06df9c9970		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC40F 10896 bytes
font_01_sfnt_off0000dd54.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD54 16792 bytes
font_02_sfnt_off0000f566.bin
9b7c5f9a4f577a478d93356194d6176fe44d72c387dec90026a4dcf99db7f837		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF566 15024 bytes

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