PDF malware analysis — malicious · c42041537b407767

MALICIOUS

PDF

3.9 KB Authoring application: rxode (via va)

MD5: 244677360674ba171223ebd377d68068 SHA-1: 2b9f0187f40cd797b9403ab525b96c3c3c7b711f SHA-256: c42041537b4077675f12302ffbad6b601e55e714067404ac3a73dc1671276ae3

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. This exploit is known to deliver a second-stage payload. The embedded file 'embedded_file_obj0041.bin' is likely the delivered payload, though its specific function could not be determined from static analysis alone.

Heuristics 5

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
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_obj0041.bin` `4d582a76d4d291e7008d65ca73ee4c3ceeadf891d8a7d91f54353b90dfac8e4b`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9817 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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