PDF malware analysis — malicious · c5a9d2c63da42286

MALICIOUS

PDF

5.3 KB Created: 2004-05-02 19:56:00 Authoring application: u

MD5: 18ec9b7510d1cc9c690e115755beb8b8 SHA-1: 3b2e9dcdd92a3d4a8aeaad65f9134621433ff0ef SHA-256: c5a9d2c63da422866575cd4e091eda9347fef30e850c78dd351feea5f49ab90f

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF document contains an embedded JavaScript file that is likely intended to exploit CVE-2010-0188 in Adobe Reader. The heuristic firings confirm the presence of an XFA form and an embedded script payload. The extracted JavaScript file, stream_002_off00000328.js, is the primary indicator of malicious activity, suggesting it downloads and executes a second-stage payload.

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.
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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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
`stream_002_off00000328.js` `6dd6271f8aaefe55a9daf3696d07c5516ebd0fa318513180a9db9cb171f6321f`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x328	61787 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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