Office (OLE) / .XLS malware analysis — malicious · 3f5c83112fdd502e

MALICIOUS

Office (OLE) / .XLS

367.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 18378645d899c8cdcc0152f2b4e37216 SHA-1: caae6e61d02aaef574fe701d0bbd3565a8198601 SHA-256: 3f5c83112fdd502e62765f96b02ebc527f83ae33dda9e77d18bb4ab3f6bc35bf

102 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1204.002 Malicious File

The file contains Excel 4.0 macros with an Auto_Open defined name, indicating automatic execution upon opening. It also includes a heuristic for a macro-enable lure, suggesting the document attempts to trick the user into enabling macros. The embedded URLs likely serve as download locations for further payloads. The presence of XLM macros and the auto-execution lure point to a downloader or initial access stage.

Heuristics 4

Excel 4.0 Auto_Open defined name critical OLE_XLM_AUTOOPEN_DEFINEDNAME

oletools recovered an Auto_Open / Auto_Close entry from an Excel 4.0 macro sheet. The raw BIFF name can be tokenized or partially opaque to byte-string checks, but the recovered macro listing confirms the workbook has an XLM auto-execution entry.
Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN

Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.
URL https://smartpalakatva.com/edQsUZOLlE/th.html
- https://pilstlcommodities.com/Ov4FlB3lpy/th.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xlm_macros.txt` `e61304013e31eadd8bf35fc5d3e6cbadd61463966f2a2d09ae24f65eb0ee3106`	xlm-macro	oletools.olevba.extract_all_macros (XLM macro listing)	8349 bytes

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