PDF malware analysis — malicious · 9a71c70c91a0697c

MALICIOUS

PDF

49.8 KB Created: 2011-04-22 21:30:29 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 7bb17a4dae590e540fc6a99d9bad62a0 SHA-1: 11d84f307245e9b8193b128f4a6ba61d1bd8cc7b SHA-256: 9a71c70c91a0697cddf2064fda759f8283b59050012cad2bcc36fe6af55bad2c

62 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2008-2551, a known vulnerability in PDF readers, to download and execute a second-stage payload. The heuristic firing for 'CVE_2008_2551: C6 Messenger DownloaderActiveX exploit' directly indicates this. The embedded URLs, particularly 'http://artisanballoonz.com/system/system.exe', suggest the location of the malicious payload. The presence of multiple suspicious URLs increases the likelihood of a malicious download attempt.

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.vije.javananeirani.ir/
- http://artisanballoonz.com/system/system.exe
- http://www.vije.javananeirani.ir/‬‬
- http://c6.community.alice.it/download/DownloaderActiveX.cab#Version=1,0,0,1

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off0000088f.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x88F	73272 bytes

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