Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddf41a5657f94ba6…

MALICIOUS

PDF

57.4 KB Created: 2011-05-17 09:10:04 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: ae19533a0b8ae50865cab4aa7b17ac17 SHA-1: c1a6625e517ff7074f2d7184b66d96c931f98991 SHA-256: ddf41a5657f94ba66ed5e662ca3344503d6e5e493e9c33632f7b0bee1aa7b746
62 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains a critical heuristic firing for CVE-2008-2551, indicating exploitation of a Messenger DownloaderActiveX vulnerability. While most extracted URLs are benign, the presence of this exploit suggests the file's primary purpose is to leverage this vulnerability to download and execute a malicious payload. No scripts were extracted, limiting further analysis of the payload's behavior.

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.farsnews.com/newstext.php?nn=8903231748
    • http://www.presstv.ir/detail.fa.aspx?id=130281&sectionid=351021501
    • http://www.presstv.ir/detail.fa.aspx?id=130195&sectionid=351021504
    • http://www.presstv.ir/detail.fa.aspx?id=130218&sectionid=351021504
    • http://www.presstv.ir/detail.fa.aspx?id=130215&sectionid=351021504
    • http://www.irna.ir/View/FullStory/?NewsId=1175587
    • http://www.farsnews.com/newstext.php?nn=8903240058
    • http://www.farsnews.com/newstext.php?nn=8903231714
    • http://www.irna.ir/View/FullStory/?NewsId=1175455
    • http://www.farsnews.com/newstext.php?nn=8903221309
    • http://www.irna.ir/View/FullStory/?NewsId=1175575
    • http://www.presstv.ir/detail.fa.aspx?id=130304&sectionid=351021507
    • http://www.presstv.ir/detail.fa.aspx?id=130255&sectionid=351021507
    • 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_005_off000026d0.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x26D0 73272 bytes