PDF malware analysis — malicious · 55dcf53a20e54c33

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)

MD5: 5549156770ec7dbf8c1c9eb51a3fec1d SHA-1: e20dcb78d0ac9594d67d283179275bbdecb56727 SHA-256: 55dcf53a20e54c333d250bc29c37281496be99b1cbe96f6cb7da0682d780f3a2

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded object and triggers a critical heuristic for CVE-2010-0188, indicating exploitation of a known Adobe Reader vulnerability. The embedded file, named 'embedded_file_obj0041.bin', is likely the secondary payload. The presence of XFA forms and embedded scripts further supports the malicious intent of executing arbitrary code.

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` `4e474dac2a9fbff3e333c9015a5f5f9d64a729eb2807bdf29158c0215fdb5b70`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9788 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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