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

Static analysis result for SHA-256 40d40fef13ba74ce…

MALICIOUS

Office (OLE) / .XLS

1.24 MB Created: 2013-10-30 19:14:42 Authoring application: Microsoft Excel
MD5: cab436953568fd3ea5385ab9ce86aff2 SHA-1: 108c128ad27ef3f0e4822621318dff4591fbbff1 SHA-256: 40d40fef13ba74ce69df1446c075266420370d846ead9ef25c39467910ecd0ed
228 Risk Score

Heuristics 7

  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • 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.
    URL http://schemas.micrrU�
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/photoshop/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://schemas.microsoft.com/cdo/configuration/sendusing
    • http://schemas.microsoft.com/cdo/configuration/smtpserver
    • http://schemas.microsoft.com/cdo/configuration/smtpserverport
    • http://schemas.microsoft.com/cdo/configuration/smtpauthenticate
  • 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.
    URL http://schemas.micrrU�
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/photoshop/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://schemas.microsoft.com/cdo/configuration/sendusing
    • http://schemas.microsoft.com/cdo/configuration/smtpserver
    • http://schemas.microsoft.com/cdo/configuration/smtpserverport
    • http://schemas.microsoft.com/cdo/configuration/smtpauthenticate
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
be37e82f5b4cf8a1fc1d81842e91e2e1f97b4c21e03fc529cecb3a42195bd6a9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 44377 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.
ole10native_00.bin
8595316db718f8beaac17e657b97c13c510716307ff793c4a832f85a9d6196d6		 ole-package OLE Ole10Native stream: MBD01059259/Ole10Native 436613 bytes

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