Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b2dc5cbade918fe…

MALICIOUS

PDF

86.4 KB Created: 2021-07-13 21:08:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 729b344882f03cfc70a838bb1e54733c SHA-1: 32ad3d3baee0840dccbe466e32bee423ee8c10ea SHA-256: 5b2dc5cbade918fee54e2cca5bfb3208db3db3b1559ae9d08f42208b56d1d205
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains embedded URLs that likely lead to phishing or malware distribution sites. The presence of external URIs and the overall detection suggest an attempt to trick the user into visiting a malicious resource, consistent with a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8440

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/~3/0YvHz_IItD0/square?utm_term=the+greatest+showman+online+123movies
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e945a9b68d8f0f4bf97083/1625900457801/user_interface_prototyping.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edb392920f291d39227823/1626190738873/kakajakudenerimiropopiwaw.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e86ef4f9d8d7554bf2641a/1625845492940/sovepinedivup.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7f87c9bae382bbac0a97b/1625815164372/zotirasi.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e7cd6069e16759cf751d59/1625804128445/lord_of_the_rings_the_dark_tower.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ed0344bc85f73bac22b623/1626145604799/centrifugal_pumps_download.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_off0000ed77.bin
fb2439dd4a8df3ed2fffab24d950a85fc88e898b7c199bcf6779ef929fca1b56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED77 11016 bytes
font_01_sfnt_off00010713.bin
ac2ea89ab38f154c4510388b502614998a34065c1123cbb6debdc3656b483f39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10713 17676 bytes
font_02_sfnt_off00013592.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13592 16792 bytes

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