Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c7bfee0d84ad566…

MALICIOUS

PDF

309.1 KB Created: 2011-07-07 20:31:23 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 60a95e73c90eea23f5a14d03b7d34032 SHA-1: dd1d0e054338a44ea8745e48c65ecddec3022761 SHA-256: 8c7bfee0d84ad56636b6b62af56e023c814d0fb6488899e60e490434da32400e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a critical heuristic indicating the CVE-2008-2551 exploit, which is known to download and execute secondary payloads. The embedded URL http://artisanballoonz.com/system/system.exe is flagged as unknown reputation and is likely the secondary payload. The document body was heavily truncated and unreadable, preventing further analysis of user-facing lures.

Heuristics 2

  • C6 Messenger DownloaderActiveX exploit critical CVE exact CVE_2008_2551
    PDF stream bytes contain HTML/ActiveX content configuring the vulnerable C6 Messenger DownloaderActiveX control with propDownloadUrl and propPostDownloadAction=run. This is the published exploit shape for CVE-2008-2551.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://artisanballoonz.com/system/system.exe
    • http://c6.community.alice.it/download/DownloaderActiveX.cab#Version=1,0,0,1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off000004ad.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD 73272 bytes