Malicious PDF — malware analysis report

Static analysis result for SHA-256 a169223ad8cf0798…

MALICIOUS

PDF

56.7 KB Created: 2011-05-26 12:47:02 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 2a26f8dbb8cf790721b05e3177375eaf SHA-1: e041de1da5899c9f4e678210be1db8bc505f9437 SHA-256: a169223ad8cf079801d0d19238ec50a3d698c652be4ce88da26e461137e54079
64 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a critical heuristic firing for CVE_2008_2551, indicating it exploits a vulnerability in C6 Messenger ActiveX. This exploit is designed to download and execute a second-stage payload. While the embedded URLs are generally benign, the exploit itself is the primary indicator of malicious intent. No scripts were extracted, and the document body was unreadable.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://www.irna.ir/View/FullStory/?NewsId=1225289
    • http://www.farsnews.com/newstext.php?nn=8904230102
    • http://www.presstv.ir/detail.fa.aspx?id=134657&sectionid=351021501
    • http://www.farsnews.com/newstext.php?nn=8904230001
    • http://www.farsnews.com/newstext.php?nn=8904230024
    • http://www.presstv.ir/detail.fa.aspx?id=134617&sectionid=351021504
    • http://www.presstv.ir/detail.fa.aspx?id=134625&sectionid=351021509
    • http://www.presstv.ir/detail.fa.aspx?id=134663&sectionid=351021507
    • http://www.presstv.ir/detail.fa.aspx?id=134626&sectionid=351021507
    • http://www.presstv.ir/detail.fa.aspx?id=134605&sectionid=351021506
    • http://www.presstv.ir/detail.fa.aspx?id=134667&sectionid=351021507
    • http://www.presstv.ir/detail.fa.aspx?id=134612&sectionid=351021503
    • http://www.presstv.ir/detail.fa.aspx?id=134582&sectionid=351021507
    • http://www.farsnews.com/newstext.php?nn=8904220149
    • 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_004_off000023f5.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x23F5 73272 bytes