Pdf.Dropper.Agent-7285915-0 PDF malware analysis — malicious · 9aa7b4356658472f

MALICIOUS

PDF

5.9 KB

MD5: bb441f830bee01efeda76245d9d04dc0 SHA-1: e46c59c44f89ecb61547926179f46978afa98344 SHA-256: 9aa7b4356658472faa547e94308baa438a0b2fa09eb1282b71f6470c3ce1ba73

116 Risk Score

Malware Insights

Pdf.Dropper.Agent-7285915-0 · confidence 95%

MITRE ATT&CK

T1059.001 JavaScript T1566.002 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including ML classifiers and ClamAV, indicating malicious intent. The presence of embedded JavaScript and an embedded file strongly suggests a dropper functionality. The JavaScript stream is likely responsible for downloading and executing the embedded file, which is the secondary payload. The ML classifier output of 0.999949 further reinforces the high confidence in this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7285915-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7285915-0
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0012.bin` `c69bc26a600ea6ccf56a3b42a42106c691b0dbc2c785d2db1a0daa8af3827c8c`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x428	150300 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 145 long base64-like blob(s).
`javascript_obj0007_000.js` `1bc4bf38a788adcc495fb84f1f085cb4c62f9f214ddac09c9e3dd447973e35e6`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1CC	254 bytes

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