PDF malware analysis — malicious · eed57d549ce6adff

MALICIOUS

PDF

18.4 KB

MD5: 9bdd6c9d257ae4a4d30560d83ea10e91 SHA-1: 16606a103b7bb461db5cf4449c0d0bbc4af48273 SHA-256: eed57d549ce6adff93a1b2b393be67c65860a5712a1f1c623877488b2f13d47d

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell

This PDF file was flagged as malicious by multiple engines, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-78' and 'Pdf.Exploit.Agent-36809' on an extracted artifact. The presence of an embedded script payload and XFA form suggests an exploit is being leveraged. The embedded URL, while seemingly benign, is present within the document structure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000329.bin` `45e460ce2ab1c9a9de3a8380b6410c4f054ff8db59dec38e3ea661ca2a9d6559`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	18068 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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