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

Static analysis result for SHA-256 2a716861355d880a…

MALICIOUS

Office (OLE) / .PPT

65.5 KB Created: 2021-03-14 23:15:17 Authoring application: Microsoft Office PowerPoint
MD5: bcb6cf160b065cd7c806f41e24cdc0e5 SHA-1: ef04745cfc8eb5b1bd7fe987b9ca9d8499bcaf36 SHA-256: 2a716861355d880adbe421368be7570bc58358006c57d74efbcaabd9574518b2
280 Risk Score

Malware Insights

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

The file contains a VBA macro with an Auto_Open function that utilizes a Shell() call. This function is designed to execute commands, and the presence of a reference to mshta.exe indicates an attempt to launch a malicious process. The macro is auto-executing and uses execution tokens, suggesting it's intended to run immediately upon opening the document. The overall pattern points to a macro-based execution of a secondary payload.

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/dbdwdadwdwfcrgdwdww

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
56645c667b194d079ceab2cd6b914aa0ce5695c29f09d7c5d5df71f0abe53909		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 523 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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