PDF malware analysis — malicious · a939b6cb76da7ed0

MALICIOUS

PDF

5.9 KB Created: 2013-04-29 11:13:02

MD5: 6769a273f1fc94319f04cdf90b6c65a0 SHA-1: 2cb99cf9c690640a42915d5a571892ec6aa254ea SHA-256: a939b6cb76da7ed0efc6e0d08923889cd26196239b29867ba948f3b4cc8d873a

218 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains an embedded artifact and triggers critical heuristics for CVE-2010-0188, indicating it exploits a known vulnerability in Adobe Reader. The embedded file, named 'embedded_file_obj0006.bin', is likely the malicious payload delivered by the exploit. The XFA form and embedded script markers further support the exploitation vector.

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.
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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
`embedded_file_obj0006.bin` `e6ab975659bb97ea4613de7cdd6b6a086f05bf8881ed45cc2e17c4f7388cfda1`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x42E	78858 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).

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