MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1566.002 Spearphishing Attachment
The file is an Excel spreadsheet containing VBA macros, indicated by the OLE_VBA_MACROS and OLE_VBA_AUTO heuristic firings. The presence of an Auto_Open macro suggests the code executes automatically when the document is opened. The DOC BODY contains a string that appears to be a prompt for a password, suggesting a credential harvesting or phishing attempt. The OLE_SLACK_ANOMALY and EXTRACTED_FILE_STATIC_TRIAGE heuristics further indicate suspicious content within the OLE structure.
Heuristics 5
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 284,672 bytes but its declared streams total only 95,683 bytes — 188,989 bytes (66%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
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Auto_Open macro high OLE_VBA_AUTOAuto_Open macro
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Auto_Close macro high OLE_VBA_AUTOCLOSEAuto_Close macro
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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.
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VBA macros detected medium OLE_VBA_MACROSDocument contains VBA macro code
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas8107cc1c5a3756ad06aea6673157e205a68d382a83bd146406dad19c51b52ae6 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 45660 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 10 Chr/ChrW string-construction calls.
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