PDF malware analysis — malicious · 3a500120be3e843c

MALICIOUS

PDF

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

MD5: ca7e1c365959ff7668fb3cbd311bf78f SHA-1: 604518588016bcdd27ca8d3fa1808f35890d4477 SHA-256: 3a500120be3e843c9c39d8901e4c38f6da556de54632d8dc19b151af8534d2d3

100 Risk Score

Malware Insights

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188 in Adobe Reader. The heuristic 'CVE_2010_0188' directly indicates this exploit. The embedded JavaScript, identified as 'stream_003_off000003b7.js', is likely responsible for the malicious activity, potentially downloading and executing a second-stage payload.

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` `0c4112ffafe94fbe9ff853bb12b03fa95cbbc9f8691c266915dedc704ea06639`	pdf-embedded-file	PDF EmbeddedFile object 29 at offset 0x309	86 bytes
`stream_003_off000003b7.js` `8de4a1a20eb4eb0a5fe876e75162b100bc113b771556586dd9e56a60b4f0dbf6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3B7	52712 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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