PDF malware analysis — malicious · e5be140e677e42e1

MALICIOUS

PDF

4.2 KB

MD5: fa906f58f23a885d4e429d3e53ad8bbb SHA-1: 7ea8a5eb03c6a188bfe83c05296829fba8f44474 SHA-256: e5be140e677e42e16a98fd7663b2800b78dfc88c265efcd6e3495a675785145c

126 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF sample exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image parsing. This exploit allows for arbitrary code execution upon opening the document. The ML classifier strongly indicates malicious intent, and the embedded file suggests a secondary payload delivery mechanism.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
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_obj0008.bin` `1f2ced71fd756de76df97881bb829e0f9f12562f969e5d76863e51523a1bc955`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12883 bytes

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