Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 d99f4f467c829e5e…

MALICIOUS

Office (OLE)

4.49 MB Created: 2006-02-01 11:10:36 Authoring application: Advanced Installer 7.1.3
MD5: 5766b5db486d97aaf9bf7c6ba078d81f SHA-1: cfd6a29cd472395e7ac34af7a2a69df6e51e5b34 SHA-256: d99f4f467c829e5eaf97fc5db24c6f7c47b314e2c864e39832a7a3eb861a9f0e
142 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is an OLE document containing an embedded PE executable, identified as 'embedded_office_00023800.exe'. Heuristics indicate the use of CreateProcess and ShellExecute APIs, suggesting the document is designed to launch this embedded executable. The URLs extracted from the document body, such as 'http://www.replacemagic.com/post.aspx...', are likely part of the lure or command and control infrastructure. The embedded executable is the primary payload, and its execution is the likely goal of this document.

Heuristics 5

  • Embedded PE executable critical OLE_EMBEDDED_EXE
    MZ/PE header found inside document — possible embedded executable
  • Reference to CreateProcess API high SC_STR_CREATEPROCESS
    Reference to CreateProcess API
  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • Suspicious extracted artifact info 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.
  • 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://www.replacemagic.com/post.aspx[HttpPostUrl]ErrorRetryecmusReinstallModeErrorAbortAppsShutdownOption
    • http://www.replacemagic.com/RMPowerPointEdition.aspxARPURLINFOABOUTchangesCtrlEvtchanges&Next
    • http://www.replacemagic.com/contact.aspxARPCONTACTOLDPRODUCTS;AI_NEWERPRODUCTFOUNDSecureCustomProperties&ResumeButtonText_Resume&YesButtonText_YesSetup
    • http://www.replacemagic.com/forumARPHELPLINKButtonText_OKErrorDialogTypical&NoButtonText_NoexclamicExclamationIcon&ReturnButtonText_Return&FinishButtonText_Finish&RepairButtonText_RepairChangingCtrlEvtChanging&IgnoreButtonText_Ignorehttp://www.replacemagic.com/Downloads.aspxARPURLUPDATEINFORepairingCtrlEvtRepairingremovesCtrlEvtremovesPPROMPTROLLBACKCOSTButtonText_CancelEnableUserControlProductVersion3CTRLSAI_APP_FILE2ALLUSERSLogo.exeARPPRODUCTICONAxmataManufacturer&RemoveButtonText_RemoveINSTALLLEVEL(+1)-970-672-0200ARPHELPTELEPHONE{\DlgFontBold8}DlgTitleFontAI_UPGRADE
    • http://www.example.com
    • http://www.yahoo.com
    • http://www.google.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_office_00023800.exe
22a16af1ec7870435cd09404513568335df6c6369437316e295e594c1f430bcd		 embedded-pe Office MZ+PE at offset 0x23800 4567552 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.72, consistent with packed or encrypted content.

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