PDF malware analysis — malicious · f5c457b8b41d95fb

MALICIOUS

PDF

5.6 KB Created: 2012-06-11 17:19:01 Authoring application: arcare godgoo

MD5: f2e9e55d0586b11b903b19b71472a4f7 SHA-1: 2eeb251d0fa59101397a7eadce765c7d0a3a9996 SHA-256: f5c457b8b41d95fbf42b5140c0fb2e3eb1a77056aaf4f4dd93a6f61a10f83408

102 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit likely leads to the execution of an embedded JavaScript payload. The embedded JavaScript is responsible for downloading and executing a second-stage payload, as indicated by the heuristic 'PDF_EMBEDDED_SCRIPT_PAYLOAD'. The confidence is high due to the direct identification of a known exploit.

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_002_off00000336.js` `983d0679661fe2939fab09bb0f1d27ceaa187c23b778986ee953bd05f81cf27c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x336	75498 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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