Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4417772d247493db…

MALICIOUS

Office (OLE)

4.51 MB Created: 2006-02-01 11:10:36 Authoring application: Advanced Installer 7.1.3
MD5: 663b5d15e3e36d6363254d2611d4f827 SHA-1: 579ca3e46aa2fe7857552d8e14ab077939a0b022 SHA-256: 4417772d247493dba8236a21b6e2dccc8521538b49b6ff3a30b2102f81ecf36c
142 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File T1559.001 Component Object Model Hijacking

The sample is an OLE file containing an embedded PE executable, identified as 'embedded_office_00023800.exe'. Heuristics indicate the use of CreateProcess and ShellExecute APIs, suggesting the execution of external processes. The document body lists files associated with an application named 'ReplaceMagic', which is likely a lure. The embedded executable is the primary payload, and the URLs point to the same domain, possibly for staging or related content.

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
46712fa1eeacf7eba2b840c6a24595159e951be8a2a240a8d96da4942df1c4c0		 embedded-pe Office MZ+PE at offset 0x23800 4579840 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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