Office (OLE) / .XLS malware analysis — malicious · f33c98f80a5d4647

MALICIOUS

Office (OLE) / .XLS

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

MD5: 89b56753e138bafa6d2406c3fed32f61 SHA-1: 0a9750f71386591d6c5b19f8e595e624057f5563 SHA-256: f33c98f80a5d4647e5a0e5bc2a950d0aa99d0b14ed85467238b384f5e4e8f9e1

80 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file contains Excel 4.0 macros, specifically an Auto_Open macro that utilizes dangerous functions like RUN. The document body suggests a lure to enable macros or editing. The macro is likely designed to download and execute a second-stage payload from the embedded URL.

Heuristics 4

XLM Auto_Open with dangerous formula APIs high OLE_XLM_DANGEROUS_FN

Excel 4.0 macro sheet contains an Auto_Open / Auto_Close entry and dangerous XLM formula APIs that can invoke programs, write files, or transfer control without VBA.
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 — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL https://shoblasaathitrust.org/ds/1902.gif�

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xlm_macros.txt` `bbd33517393cbce6ee65ec4f25759bc584a492e71d319574161752e5ce8a6fab`	xlm-macro	oletools.olevba.extract_all_macros (XLM macro listing)	2686 bytes

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