PDF malware analysis — malicious · b5b4eb459374a316

MALICIOUS

PDF

5.1 KB Created: 2004-05-02 19:56:00 Authoring application: e

MD5: 0adaf892094b8b197d43676b34a1757b SHA-1: 89d6c34b1b9bce92e526c7f4e2d22a0ffc8cbcb8 SHA-256: b5b4eb459374a316faa29ae329d3b74c694bf768826ed4f664d263be9bafc26f

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell T1059.003 Windows Command Shell

The PDF file contains an embedded JavaScript payload that is triggered by the CVE-2010-0188 exploit. The extracted JavaScript file, stream_003_off0000035e.js, is likely responsible for downloading and executing a second-stage payload. The document body text is not human-readable and appears to be malformed or encrypted, providing no additional context for the attack's lure.

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_003_off0000035e.js` `139c50851f02b706f84a75b6cc1b79d62f7e9a24a537c11ac31b71b309d0166f`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x35E	52474 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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