Malicious PDF — malware analysis report

Static analysis result for SHA-256 2391cc75dc4fa123…

MALICIOUS

PDF

7.6 KB
MD5: f3d5b7ead0a8fe704132ee0644f7f191 SHA-1: 20c37259a834964f32b907e4d3f5ef29b48a853d SHA-256: 2391cc75dc4fa1237d79730c93dae11ae40c7a719e351b2a819a23ae7535545e
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a dropper. It contains embedded PDF files, suggesting a multi-stage attack where the initial PDF serves as a container for further malicious content. The presence of embedded files and the 'Pdf.Dropper.Agent-7239486-0' detection strongly indicate its role in delivering other malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7239486-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7239486-0
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • Remote GoTo action info PDF_GOTO_REMOTE
    PDF has GoToR/GoToE actions that reference sibling document files — typical of multi-part document bundles

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
magellanic_venus_657.pdf
48bb87feca1efede6a3e8399a9ff2fb1de82ff7c00d6917450063beede0f87e4
pdf-embedded-file PDF EmbeddedFile object 7 at offset 0x36A 5098 bytes
magellanic_venus_657_1.pdf
b2095ab7e3910032302050b3dc9ca71d0d408905c1b309d179ede898f3eb54db
pdf-embedded-file PDF EmbeddedFile object 7 at offset 0x36A 5758 bytes
magellanic_venus_657_2.pdf
b6b4154fc08ad89224509979da2deaa470a3ee03869ec84c79a821070f9807be
pdf-embedded-file PDF EmbeddedFile object 7 at offset 0x36A 6422 bytes
magellanic_venus_657_3.pdf
6a76a4b392510a6ae29898830899433579645a334b086f6c02d62bad049a4026
pdf-embedded-file PDF EmbeddedFile object 7 at offset 0x36A 7087 bytes