PDF malware analysis — malicious · a13efeaf8ac9edbd

MALICIOUS

PDF

5.4 KB Created: sdtres

MD5: c34205d238ba9a629e82e6fa02bb7387 SHA-1: 780568735237569eada0579c090598834d9bb1ca SHA-256: a13efeaf8ac9edbda08b742cecb577099c5645e973e14c226356c7188d8ef121

216 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.004 Command and Scripting Interpreter: PowerShell

The PDF file contains an embedded artifact and triggers critical heuristics for CVE-2010-0188, indicating exploitation of a known Adobe Reader vulnerability. The embedded file is also flagged by ClamAV with a signature matching this exploit. The attack pattern is therefore confirmed as exploitation for client execution.

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.
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0011.bin` `e648d7ca5ed5c36712acabb2eccdc7b3bb286eacd1324316d3689df10a133770`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x434	32674 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: unlikely

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