Malicious PDF — malware analysis report

Static analysis result for SHA-256 d519f4d121742f1e…

MALICIOUS

PDF

60.8 KB Created: 2011-04-27 02:31:48 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 46e7030efd053e62b80c5cbb49f99d41 SHA-1: 3c9ee0659f95b9b144024bcd2ba217990db4cdc7 SHA-256: d519f4d121742f1e62768fa165ffbe2bb41fde3328a5c29f3d9e686e1adb6eaf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF document that contains a critical heuristic firing for the CVE_2008_2551 exploit, which is known to download and execute payloads. The embedded URL `http://c6.community.alice.it/download/DownloaderActiveX.cab#Version=1,0,0,1` likely points to the exploit code or a downloader. Additionally, another URL `http://artisanballoonz.com/system/system.exe` is present, which is highly suspicious as a potential payload. The document body contains numerous benign URLs, likely as decoys or to blend in.

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

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