PDF malware analysis — malicious · 1ecb874874ab87ba

MALICIOUS

PDF

5.3 KB Created: 2004-05-02 19:56:00 Authoring application: u

MD5: 5d0a6e01d7bc186a0cfe48754992dc55 SHA-1: 46fd2e7d81f33ab4d7d43fbd7320b1f884b3bc1d SHA-256: 1ecb874874ab87bab759bf98f26a9debf260a96b898d54a667d2df3a1626ac13

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF document exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image parsing. A JavaScript payload was extracted from a decompressed stream within the PDF. This script is likely responsible for downloading and executing a second-stage payload, as indicated by the heuristic 'PDF_EMBEDDED_SCRIPT_PAYLOAD'. The extracted JavaScript file 'stream_003_off00000345.js' is the primary indicator of compromise.

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_003_off00000345.js` `7c9731d5675fa801c60e54b8e9eda441738177467c5f574a86a4d22c6a2fdc4b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x345	61872 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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