PDF malware analysis — malicious · 395f2b87a9695adc

MALICIOUS

PDF

13.2 KB

MD5: 044d92d394c282dfb5f9d019aa89a367 SHA-1: 4a95668124349291a4f71ac92066bf38c78f1451 SHA-256: 395f2b87a9695adcfd266f0e5a932d076af9d62e388305efbce42219ad9e15eb

248 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an XFA form that triggers the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to download and execute a secondary payload. The embedded script, though not fully detailed, is indicative of malicious intent. The ClamAV detections further confirm the malicious nature of the file.

Heuristics 7

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
XFA form contains executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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_00000374.bin` `dac8253d02c38fdc7815ac5767c6c30c1e88e93b6516a95882621582c0e1d64c`	pdf-embedded-script	PDF raw stream script payload at offset 0x374	12764 bytes
Detection ClamAV: Pdf.Exploit.Agent-36756 Obfuscation or payload: unlikely

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