PDF malware analysis — malicious · b8b3ef2d4ad626b8

MALICIOUS

PDF

5.4 KB Created: sdtres

MD5: cb2dcf1282e91a74735c00eb180b25df SHA-1: d0c5084eebdec0c007a883182bc946bf66a75b2e SHA-256: b8b3ef2d4ad626b8bab86bc8d58e21e2817b036a23b1fa8a49babe6812218b0a

210 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. A decompressed JavaScript payload was extracted from the PDF stream, indicating that the exploit likely leads to the execution of this script. This script is suspected to download and execute a second-stage payload.

Heuristics 6

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.
ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
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
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_001_off00000424.js` `947e8fc7db7d9e49f70bc5a2a5444ebc7b5e3d9a1ab6e3b68f410e8891fd990f`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x424	32764 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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