Malicious PDF — malware analysis report

Static analysis result for SHA-256 375337482ee80bf7…

MALICIOUS

PDF

82.1 KB Created: 2021-07-20 16:07:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ed4fde8054abdafc67a4a27f6bb6fbaf SHA-1: 6b5d5f0acd47ec89ac950a3bd841340d009d6a12 SHA-256: 375337482ee80bf7f708cc5f63c312796952c81a5c35841f471d900c21a9592d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple engines, including ClamAV and an ML classifier, as malicious. It contains embedded URLs that likely lead to phishing or malware distribution sites. The presence of these indicators strongly suggests a malicious intent, possibly for credential harvesting or further infection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8847

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/XMoLd4EPXkg/square?utm_term=crucible+study+guide+answers+act+2
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f02cdde9d3bc6103ff8123/1626352861315/nefajaninakojaxudituv.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f021cc8fff8309febb2715/1626350028702/impaired_verbal_communication.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f0a7f9e85c77654f2c612a/1626384377780/10221835877.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee383427fa864c7d11561d/1626224692722/26010443827.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60eddd47e11d817478d1b1ad/1626201415697/to_whom_it_may_concern_resume.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f69c49278b060c9745146b/1626774601974/gaxaziwejobomenaba.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f02bb349582827e2ffbf4c/1626352563297/succasunna_nj_directions.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_off0000e433.bin
e5f46e476bfb5fe0e9b14df67b2ad944c6a1a71e3c87dcc9fbc2cb979a978581		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE433 15076 bytes
font_01_sfnt_off00010a85.bin
0850c3ef7be059b1a11094d2f6e0fbd56be571a388c7840319b91631b6f0907b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A85 11016 bytes
font_02_sfnt_off00012437.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12437 16792 bytes

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