PDF malware analysis — malicious · bf6d3a4792e55991

MALICIOUS

PDF

5.5 KB Created: sdtres

MD5: a177b87dbc5ee8ff434825e09ab1918f SHA-1: 4b3e39bc066517a64318c9f019cb13988ed196d6 SHA-256: bf6d3a4792e55991204bac763d9b30559f43820721634022df3bb9c7229ca9c2

216 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader's LibTIFF component. This exploit is designed to decompress and execute a payload from a stream within the PDF. ClamAV detections confirm the presence of this known exploit. The embedded artifact and exploit indicate the primary goal is to achieve code execution for a secondary stage.

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` `9f9046234813210fee0962d4e8bf7224d60d3ba2a57cc0c956793e36ca3e537c`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x45D	33100 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: unlikely

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