PDF malware analysis — malicious · c5535e96ad1acc39

MALICIOUS

PDF

5.1 KB Created: 2002-02-02 59:55:01 Authoring application: e

MD5: 79a3d763cc49008ff718f894a70d0999 SHA-1: 9e54cdba81d6b82196f6d1b512f89623a3af7d82 SHA-256: c5535e96ad1acc3917ae28df8d59a3165c3a4ce6dc62c9dd783580c044c20d04

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF file contains an embedded JavaScript payload that exploits the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to download and execute a second-stage payload. The presence of the XFA form and embedded file further indicates malicious intent. The specific JavaScript file 'stream_003_off000003d4.js' is a key indicator for further analysis.

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0029.bin` `bd23462cca107eba11b00d0548b0d3c5b3b09ea4937fd391701e8af5b4e18f8d`	pdf-embedded-file	PDF EmbeddedFile object 29 at offset 0x2EB	165 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`stream_003_off000003d4.js` `9cf38e874b2f23cbcb6e8cd1785756bca722f02905dd154b399cf5ec1d6f07d3`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3D4	44168 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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