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

Static analysis result for SHA-256 ca6cca63731e8607…

MALICIOUS

Office (OLE) / .PPT

54.5 KB Created: 2023-02-28 19:45:11 Authoring application: Microsoft Office PowerPoint
MD5: a7b9fa984e5fc897da9871f5efea2aad SHA-1: a1e4a02b1fb617ede5dba236642eedd7eb24df93 SHA-256: ca6cca63731e86074f4b715fd5ff280771c7478aa9e336267e8cc95cdf4905fe
420 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.003 Windows Command Shell T1204.002 Malicious File T1105 Ingress Tool Transfer

The sample is a PowerPoint file containing a VBA macro with an Auto_Open subroutine. This macro utilizes WScript.Shell to execute cmd.exe, indicating an attempt to download and run a second-stage payload from the embedded URL http://109.248.11.155/network.exe. The presence of Shell() calls and cmd.exe references strongly suggests malicious intent.

Heuristics 11

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • cmd.exe reference in VBA high OLE_VBA_CMD
    cmd.exe reference in VBA
  • 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 http://109.248.11.155/network.exe

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7badca495dc6357effc44648031a5ba6c141cef2233e38eeba826fea13c2e1dc		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 233 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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