PDF malware analysis — malicious · c355244c5aaf5939

MALICIOUS

PDF

18.4 KB

MD5: 68abf608c8c07b096f6a656ca6072214 SHA-1: 81bf05ca9cb1816ca91d4efa1189464d7227cb83 SHA-256: c355244c5aaf5939ea10616a541a3b944d3bf04b727681384195289bd0eac1b1

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file exhibits characteristics of malicious intent, including the presence of XFA forms and an embedded script payload. ClamAV detections further confirm its malicious nature. The embedded script is likely responsible for downloading and executing a second-stage payload, as indicated by the critical heuristic firings. The embedded URL is suspicious and may be related to the exploit.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36789 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36789
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_00000325.bin` `48901f8885c534d3ca0aacd19d7c8e2c8d111dfd6c58442ccc15b290f2aa27b8`	pdf-embedded-script	PDF raw stream script payload at offset 0x325	18115 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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