MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1105 Ingress Tool Transfer
The sample is an Excel file that uses a social engineering lure, claiming a newer version of Microsoft Office is required to view content, prompting the user to enable macros. The critical heuristic indicates an OLE package that drops an auto-executable payload named 'http185.39.149.119zxrssidin.exe.vbs', suggesting it downloads and executes a second-stage malware. The reference to Windows Script Host further supports the execution of a script.
Heuristics 3
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Ole10Native package drops an auto-executable payload critical OFFICE_PACKAGE_RISKY_FILEOLE Package displayName or fullPath ends in a directly auto-executable extension (a runnable binary or a script the default shell host runs on double-click). Embedding such a payload inside an Office document has no benign authoring use — it is a malware-delivery dropper.
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Reference to Windows Script Host high SC_STR_WSCRIPTReference to Windows Script Host
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Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGEOne 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.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
ole10native_00.bin |
ole-package | OLE Ole10Native stream: MBD033319BD/Ole10Native | 9757 bytes |
SHA-256: e9b464cb938354929b72785cc45d45d568406147679dda8e2f525064ed54c614 |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Static shellcode analysis recovered command string(s): WScript.Shell").Run(""& iflhaayAnnAAnuqyb &""),0A
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