PDF malware analysis — malicious · e82254b4a71f334a

MALICIOUS

PDF

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

MD5: d76dd37efb8a5228aa8f85cbabf7e8ca SHA-1: bb3fca1cdcbee71583cf35bd842b36856303fa10 SHA-256: e82254b4a71f334a4cc183a4d6ae96437d2c1ef10775adce3fce945ea07acc6b

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution 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. The heuristic 'CVE_2010_0188' directly indicates this exploit. The embedded JavaScript, named 'stream_003_off0000038b.js', is likely responsible for downloading and executing a second-stage payload. The document body is heavily obfuscated and does not provide clear user-facing content, reinforcing the exploit-driven nature of the attack.

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` `1198a45cc3ab21d33f9ae9cb716ce29f0478cb65a165486930da8b6ddb84ab35`	pdf-embedded-file	PDF EmbeddedFile object 29 at offset 0x2F6	61 bytes
`stream_003_off0000038b.js` `4174cc7cba41750d65b277e28bf97538387d5a7193f5641e111e013f04e07cf3`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x38B	52475 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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