PDF malware analysis — malicious · b5941f79ba4bf6ca

MALICIOUS

PDF

33.0 KB

MD5: 0662d384bc2c4c655db6833237a06a86 SHA-1: 3276b73c8860ccaa23f2b78e3f59b59c22367f52 SHA-256: b5941f79ba4bf6cabd1f8ff7044acb301d9bfe4f28b9d9ff3d30d56854698ac5

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file exhibits multiple indicators of malicious intent, including embedded JavaScript and a RichMedia (Flash) object. The ClamAV heuristic 'Heuristics.PDF.ObfuscatedNameObject' further supports this assessment. The embedded JavaScript stream, 'javascript_obj0006_000.js', likely contains obfuscated code designed to execute malicious actions, potentially downloading and executing further payloads. The presence of embedded files and Flash objects suggests an attempt to exploit vulnerabilities or trick the user into executing harmful content.

Heuristics 6

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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` `9e798ca759049b0ed1720d8ee720e7d781cde4ef09bae49b100d9fd2551e8f75`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x1990	26849 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `d263f70123bd6972641f0c23b8f20ba0fee0cf39539150604d356c500432ed60`	pdf-javascript-stream	PDF /JS object 6 at offset 0x134	4642 bytes

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