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

Static analysis result for SHA-256 edcfc4bb2855541f…

MALICIOUS

Office (OLE) / .PPT

63.5 KB Created: 2021-03-14 23:15:17 Authoring application: Microsoft Office PowerPoint
MD5: 43d18319605497bb7f10804070f31c42 SHA-1: 56e6301ac115d5fcc3bea7369f962d1ad02e7fe6 SHA-256: edcfc4bb2855541fb8aafe5cb37ffe77337c90e319548544642631f898d74bb7
280 Risk Score

Malware Insights

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

The sample is a PowerPoint file containing a VBA macro with an Auto_Open function. This macro utilizes the Shell() function to execute a command, specifically referencing mshta.exe. This indicates an attempt to download and execute a second-stage payload. The presence of the Auto_Open macro and the Shell() call strongly suggests malicious intent, likely for initial execution and further payload delivery.

Heuristics 8

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Reference to mshta.exe high SC_STR_MSHTA
    Reference to mshta.exe
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open 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
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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://%6786d78asd6786d78asd%6786d78asd%6786d78asd@j.mp/jasidddasdoj

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c146bcd26b55139fb7cb88647d5c85a52f8b00285fb03386fda1e1814b78fbf7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 722 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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