Malicious Office (OLE) / .PPT — malware analysis report

Static analysis result for SHA-256 28f933ab85731f1d…

MALICIOUS

Office (OLE) / .PPT

222.5 KB Created: 2006-08-16 00:00:00 Authoring application: Microsoft Office PowerPoint
MD5: 8eb8071646d2df18e60bdf2f34deee28 SHA-1: 73166a79dbd2e198519d1a5d1981f14dd0cd7158 SHA-256: 28f933ab85731f1d64d878d10fd4f507f93af929b88ecdfadf53e5f88d05fe37
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The file contains a VBA macro with an Auto_Close execution trigger. This macro utilizes an obfuscated Shell() call to download a payload from the URL "http://1230948%1230948@j.mp/aaaadwkowdkwdopw". The presence of the Auto_Close macro and the Shell() call strongly suggests a malicious intent to download and execute a secondary payload upon opening the document.

Heuristics 6

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Obfuscated VBA Shell command with URL critical OLE_VBA_OBFUSCATED_SHELL_URL
    VBA macro invokes Shell with command text assembled through decoder or string-manipulation functions and includes a URL. This is a high-confidence downloader/dropper pattern, stronger than Shell or URL evidence on their own.
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close macro
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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://1�230948%
    • http://1230948%1230948@j.mp/aaaadwkowdkwdopw

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
330ba9db53ca0dfd72808c93bab14d52cf8ebd0b81155e0bda6acdced37d629e
vba-macro oletools.olevba.extract_macros (decoded VBA source) 50768 bytes