PDF malware analysis — malicious · c7b321c195577d97

MALICIOUS

PDF

5.0 KB Created: 2012-05-12 13:11:01 Authoring application: Of5

MD5: 26678a2def5ee4179fbb6409dd1fe6bf SHA-1: e30882bf0dd6ecf6aea30496308f9ab1b9d3973b SHA-256: c7b321c195577d9744844f527d4ae83c026a2ed11c43eceb8731452a1194f31c

142 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains a critical vulnerability, CVE-2010-0188, which targets Adobe Reader's handling of XFA forms. A decompressed JavaScript payload was extracted from a PDF stream, indicating the execution of malicious code. This payload is likely responsible for the malicious verdict.

Heuristics 7

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.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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_off00000318.js` `1692dbbf527f318873dd3dd2bce47d65d1e2a0a197595c8838333cf9c7670389`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x318	48028 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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