PDF malware analysis — malicious · 466eea36f802d64b

MALICIOUS

PDF

27.6 KB

MD5: 510066231ec0ebc16fa63dc92a184a07 SHA-1: f340e8659cc5d03257b622f16d1b1f4f50f8b556 SHA-256: 466eea36f802d64b70abc3b274aadf51f9b033c77d2850351c617df9635aeda7

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF document contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36100) confirm the malicious nature of the file. The embedded JavaScript is likely responsible for executing the malicious payload, leading to the detection as a trojan agent.

Heuristics 4

ClamAV: Win.Trojan.Agent-36100 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36100
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0008_000.js` `ead51110b022123fb47a11808c95d038debe17c92aab8eaeac8172fe15ffaad0`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	27477 bytes
Detection ClamAV: Win.Trojan.Agent-36100 Obfuscation or payload: unlikely
`legacy_pdfkit_stage_000.js` `e5b7354c6dc9653059a88124c547a9dd6a2163bcffeda138f48848ef479d82ed`	deobfuscated-js	double percent-decoded annotation JavaScript at offset 0x1E7	15117 bytes

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