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

Static analysis result for SHA-256 30969a11fe37f466…

MALICIOUS

Office (OLE) / .PPT

62.0 KB Created: 2021-04-21 20:54:19 Authoring application: Microsoft Office PowerPoint
MD5: b89f3f4467df6600138ba12eb1522f95 SHA-1: 9d2567c6ebb4168b0670d4c00a7986de5c83a719 SHA-256: 30969a11fe37f466bf5a9501d1c705e48a0073b725371062d9d9f889cc4b8156
300 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1218.005 System Binary Proxy Execution: Mshta

The file contains VBA macros, including an Auto_Close macro that utilizes the Shell() function. This function is used to execute mshta.exe, a legitimate Windows utility often abused for malicious purposes. The presence of the 'SC_STR_MSHTA' and 'SE_LOLBIN_RUN_COMMAND' heuristics further supports this. The embedded URL, though marked as benign, is included as a potential indicator. The primary intent appears to be downloading and executing a second-stage payload via mshta.exe.

Heuristics 8

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Malware.Logan-10008081-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Logan-10008081-0
  • Reference to mshta.exe high SC_STR_MSHTA
    Reference to mshta.exe
  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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 https://j.mp/ghduiqhwdbiiqwgd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
6b42723cab4f37d0f5838ce50465beb749f1867ae0d483c7d38bda7f9acd3512		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 457 bytes

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