PDF malware analysis — malicious · 41a1b19e52c2cee7

MALICIOUS

PDF

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

MD5: 72b5b72c9415a7e16642113b7e97b2dd SHA-1: c141ec53466e493cfa051462dd9ddfe58217634c SHA-256: 41a1b19e52c2cee7facae7d6ac5456e0236e2832b1153d0605e3b3faca3579a1

100 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 handling. 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, although its exact actions are 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.
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` `f690b7f04578897d3fcc0d3d6215a0c91e43f53bf4403b226040eb59be4977d8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x336	75050 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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