PDF malware analysis — malicious · c70a2105600150f7

MALICIOUS

PDF

14.7 KB

MD5: 87df8340955f9f1e5ab01f1538d73f5a SHA-1: e9898fa6a4eb969bce391592ef61cdfd1db850e4 SHA-256: c70a2105600150f749268e34b4e205ec9aa7fd7b25c9d0765cda00b137d8e067

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: Malicious Attachment

The file is identified as a malicious PDF by ClamAV with multiple critical detections, including 'Pdf.Exploit.Dropped-78' and 'Pdf.Exploit.Agent-36809' on an extracted artifact. It contains an embedded script payload, indicating it's designed to execute malicious code. The embedded URL, while benign in reputation, is present within the document structure. The XFA form structure is also noted, which can sometimes be leveraged for exploits.

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` `110082c5d7e6118b55f341bd5b9e328dc0e03b67770c7fb762fc962d75e94bb7`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14282 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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