PDF malware analysis — malicious · 928ca9bb8d2df3b5

MALICIOUS

PDF

33.4 KB

MD5: 4075895b5113797fa700dc28b84a1e70 SHA-1: 41d0487f8c6916a32cc96750878e90aceb75b628 SHA-256: 928ca9bb8d2df3b5193e7ce61007ece448e1f35db872484519c672cc2387bc6d

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.007 JavaScript

The PDF file contains embedded JavaScript and a RichMedia (Flash) object, both of which are flagged as suspicious. ClamAV detections indicate that the embedded Flash object is a known exploit kit. The presence of these elements suggests the PDF is designed to exploit vulnerabilities, likely leading to the download and execution of additional malicious content. The embedded JavaScript and Flash object are the primary vectors for this attack.

Heuristics 7

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
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_obj0016.bin` `82959a74bd2f365dbaff0af8a126e8d6efed63f658723f179f7020ea3628ed8b`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x16CE	27931 bytes
Detection ClamAV: Swf.Exploit.Kit-513 Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `f756aa6967b42f7eef0adcf49e7a15a187299cd0d169d4fd015cef5c13d62852`	pdf-javascript-stream	PDF /JS object 6 at offset 0x13C	4082 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.