Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5468c225094bf95…

MALICIOUS

PDF

74.5 KB Created: 2021-07-15 16:31:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a1d574e525bd6e359960cd33aaed37b3 SHA-1: 133a921cc08104270060de70b025e9a02d5c210d SHA-256: d5468c225094bf95e1f0905a45cd6df615b475a88002598e9bc971712794a8df
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a phishing attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest it may attempt to redirect users to malicious sites or download further payloads. The file's metadata indicates it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, which could be leveraged for phishing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8802

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/sq/ugae/~3/9xivtwLAy4k/square?utm_term=how+to+convert+latex+pdf+to+word
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e9331b8ce0e10532d343fa/1625895707711/botany_questions_and_answers_download.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60efdc5197dca740078c37fc/1626332241369/department_of_water_supply.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e91b168915684aa53d0b18/1625889558759/catheter_size_male_and_female.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec941f9c874e7142492780/1626117151565/nubawakofeguzesimakonip.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee05571c6c1a61d5293770/1626211671449/haskell_compiler_online.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_off0000c3b6.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3B6 16792 bytes
font_01_sfnt_off0000dbc8.bin
d5e262003e4124f0141bf76c9d89d3244737398025c351baab7d3ed954255664		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC8 16284 bytes
font_02_sfnt_off000105e1.bin
a12ebc5f5f9a7905966d258dcd74b276c583852662957d826bb738102f7b64a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105E1 10596 bytes

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