PDF malware analysis — malicious · cdbb1f3409f86142

MALICIOUS

PDF

5.2 KB Created: 2011-06-11 17:19:01 Authoring application: TTsF

MD5: bfa776d5e55edee237c2164e3d69329a SHA-1: d6730a7bb23136aa69884d3235d95b1257c4a1fe SHA-256: cdbb1f3409f86142a6779d8e1e5b45fa6149cdd71df1f81cb6bc5764e2ad58d6

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an embedded JavaScript payload, identified by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. The 'CVE_2010_0188' heuristic indicates exploitation of a known Adobe Reader vulnerability. The extracted JavaScript file, 'stream_002_off00000307.js', is likely responsible for executing the malicious actions.

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_off00000307.js` `4e1d8ba4a03e24fbc94e03385eda7af42a2c77801e6a7687ba3bab34249965ba`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x307	65655 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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