Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f7f9bd1e870193a…

MALICIOUS

PDF

92.8 KB Created: 2021-07-17 10:14:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ec39cce4b8243a89b4d1f0502bc88346 SHA-1: f742f95ab8f63eb0b5df4512b6e2998edc50e02a SHA-256: 4f7f9bd1e870193a7393fd0d7c0474af283b3c2238b29396f099e45137bd75a5
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a phishing trojan by ClamAV. It contains multiple embedded URLs, some of which are confirmed benign, but the overall structure and detection suggest malicious intent. The PDF document itself does not contain readable text, but the presence of external URIs indicates an attempt to redirect the user to potentially malicious content. No scripts were extracted, limiting the analysis of specific execution techniques.

Machine Learning

  • Nyx PDF Classifier clean score 0.1448

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/~3/1LSSs5qy-i4/square?utm_term=is+building+and+equipment+a+current+asset PDF link annotation
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f11e1a5554232196bc36d7/1626414618519/yellow_moon_meaning.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec82bae64ce5371634b970/1626112698425/12717472404.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000108e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108E4 17260 bytes
SHA-256: 461460dc6e8ba80c1264c8423d2549cf25c22e312193339bfaea8840d0f88f8d
font_01_sfnt_off00013674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13674 11072 bytes
SHA-256: 3936710b81f6207ce85209d72b4087e9065707c8f814ff4a34818d4e9c99d3b1
font_02_sfnt_off00014f72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F72 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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