PDF malware analysis — malicious · 55574a6a70733687

MALICIOUS

PDF

54.0 KB

MD5: dbb9ce4e3aa3fed68f38729c9e1b779e SHA-1: 006ac60d9ba7945e840fc546e5fbe0147859a83a SHA-256: 55574a6a70733687ab4de88372f7cf234c3a4d5565b5219628b6ac182ca262c3

236 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file contains embedded JavaScript and a Flash object, both of which are flagged as malicious. The ClamAV detection 'Pdf.Exploit.Agent-35955' and the ML classifier strongly indicate malicious intent. The embedded JavaScript and Flash exploit likely work in tandem to compromise the user's system, potentially by leveraging known vulnerabilities like CVE-2010-1297.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 8

ClamAV: Pdf.Exploit.Agent-35955 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35955
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
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`AdobeSystem` `2c7ca4fbed7155ab780d5d0a2c60615cac253028b3c562f3641b8afa4a27e3ad`	pdf-embedded-file	PDF EmbeddedFile object 5 at offset 0x1B0	21285 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 8.00, consistent with packed or encrypted content.
`CVE-2010-1297.swf` `e00f8888a663b7605e1a74a39b06c4c4210174facea50eafd361d375f73abd1a`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x69DA	26774 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0008_000.js` `194d00ec2d39534e2227dcd9c6733107d9b76bcfdfae8af20c7dec2079c58a47`	pdf-javascript-stream	PDF /JS object 8 at offset 0x555F	4895 bytes

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