PDF malware analysis — malicious · 8cd12c3424168309

MALICIOUS

PDF

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

MD5: 7258dc3f2b6015f5f11d20faeea790b6 SHA-1: d18e35be1673c4b4fc410854540d2bb1a9a4e97a SHA-256: 8cd12c3424168309320d8bbda6d75f31bc9fc39d602d3bc44100016ab3375665

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell T1059.003 Windows Command and Shell

The PDF file contains an embedded JavaScript file that is obfuscated and likely contains malicious code. The critical heuristic firing for CVE-2010-0188 indicates that this PDF is designed to exploit a known vulnerability in Adobe Reader. The embedded JavaScript is the primary payload, intended to be executed after the exploit is successful, likely to download and run further malicious content.

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.
Suspicious extracted artifact medium 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.
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_001_off00000324.js` `e65595f2d71adcd5e87e81a39a9a69bdc0f80bbb303fc9a209f790c23ad93bb0`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x324	52282 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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