PDF malware analysis — malicious · 30d90c9fa1b48a2d

MALICIOUS

PDF

5.2 KB Created: 2011-04-05 23:46:28 Authoring application: bub lob

MD5: dffa7cfcaefdb4d82f1c759a6ea120fa SHA-1: 4797ff609e28cdef2cc366716754d6b7b0345fcb SHA-256: 30d90c9fa1b48a2daa60b6db8ed9dc8710a45510c2758d8a5e4fad1384de5209

140 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. The heuristic firings indicate the presence of an exploit targeting this specific CVE and an embedded script. The script is likely responsible for downloading and executing a second-stage payload, although its exact function is obscured by obfuscation.

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.
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
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_001_off00000324.js` `26659d101af87b69ab655e5d238c9794bab7a6e65fd71542e61b0ccd05da498a`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x324	51722 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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