Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1038abcd66af1d0…

MALICIOUS

PDF

54.1 KB Created: 2011-05-26 13:07:07 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: bdbb461cc76ad95aa77dd048db1e806a SHA-1: 31d66edc0bebce1424a757bd6b07c4c4f2b72430 SHA-256: c1038abcd66af1d04030862f299d159648e3962a248b82a90885b0daa2915703
62 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 to download a payload. The embedded URL points to a CAB file which likely contains the malicious executable. The document body contains numerous benign URLs, likely as a distraction 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://artisanballoonz.com/system/system.exe
    • http://www.farsnews.com/newstext.php?nn=8903170976
    • http://www.irna.ir/View/FullStory/?NewsId=1162985
    • http://www.irna.ir/View/FullStory/?NewsId=1163118
    • http://www.irna.ir/View/FullStory/?NewsId=1163090
    • http://www.irna.ir/View/FullStory/?NewsId=1160973
    • http://www.farsnews.com/newstext.php?nn=8903171179
    • http://www.farsnews.com/newstext.php?nn=8903171215
    • http://www.presstv.ir/Persian.aspx?id=10509
    • http://www.presstv.ir/Persian.aspx?id=10513
    • http://www.presstv.ir/Persian.aspx?id=10507
    • http://www.irna.ir/View/FullStory/?NewsId=1163152
    • http://www.irna.ir/View/FullStory/?NewsId=1163128
    • http://www.irna.ir/View/FullStory/?NewsId=1163104
    • 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_off00001a07.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A07 73272 bytes

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