Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01cfc5e3fddbb49…

MALICIOUS

PDF

60.8 KB Created: 2011-05-17 08:39:54 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 698ae09a1d7f53ff1b5ae92d0e1343e8 SHA-1: 92c683d3613b35f0266f0815f43f9f11f5627a5d SHA-256: e01cfc5e3fddbb497dd5cae2342df8ed3a7af12c5968e41204a9b241858ff89f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file that triggered a critical heuristic for the C6 Messenger DownloaderActiveX exploit. This exploit is known to download and execute secondary payloads. The presence of an embedded URL pointing to a CAB file, and another URL that resolves to an executable file, strongly suggests this is a downloader. The document body contains numerous URLs, but most are confirmed benign; however, the presence of the exploit and the unknown reputation of the executable URL are key indicators.

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://www.rajanews.com/detail.asp?id=49387
    • http://artisanballoonz.com/system/system.exe
    • http://www.irna.ir/View/FullStory/?NewsId=1095402
    • http://www.farsnews.com/newstext.php?nn=8902131570
    • http://www.irna.ir/View/FullStory/?NewsId=1094497
    • http://www.irna.ir/View/FullStory/?NewsId=1094349
    • http://www.irna.ir/View/FullStory/?NewsId=1094488
    • http://www.irna.ir/View/FullStory/?NewsId=1094484
    • http://www.irna.ir/View/FullStory/?NewsId=1094490
    • http://www.irna.ir/View/FullStory/?NewsId=1095417
    • http://www.irna.ir/View/FullStory/?NewsId=1095146
    • http://www.irna.ir/View/FullStory/?NewsId=1094491
    • http://www.irna.ir/View/FullStory/?NewsId=1094468
    • 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_010_off00003363.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3363 73272 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.