PDF malware analysis — malicious · b9ef9a884bfd554a

MALICIOUS

PDF

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

MD5: 66c6a0d3e5e94974a6b06bc2dad87b99 SHA-1: 0b03c68c2dfb609fa9a2edde6839142a4048213e SHA-256: b9ef9a884bfd554ac6163c45f753ddbaf263c600a2c25f80ec701a339f307355

100 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting the LibTIFF XFA image component. The exploit payload is embedded within a decompressed stream and identified as a JavaScript file. This indicates the primary attack vector is likely to be the execution of arbitrary code upon opening the PDF in a vulnerable reader, leading to further malicious activity.

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_off0000035b.js` `679edb905f4e767b2560d7995a0d3484ddae2cac524197610ba2ab00f796d8bc`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x35B	60926 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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