Office (OLE) / .XLS malware analysis — malicious · 2784a7bc578c5e9a

MALICIOUS

Office (OLE) / .XLS

53.5 KB Created: 2020-03-16 21:03:30 Authoring application: Microsoft Excel

MD5: 52994e12e806f240ca860723ef6bee39 SHA-1: de69c9be2a859c21df976b43df1bb3cebd7461a6 SHA-256: 2784a7bc578c5e9a6820bd2475f4a9210af2c08e4f0f44ffec3ae35667260a17

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1059.001 PowerShell T1059.003 Windows Command Shell T1059.004 JScript/VBScript

The presence of an Excel 4.0 macro sheet with an Auto_Open function and references to dangerous APIs like ShellExecute and URLDownloadToFile indicates a malicious intent. The macro is designed to download a payload from the embedded URLs, specifically 'https://orrmingnextyou.xyz/372873/svs.dll~' and 'https://orrmingnextyou.xyz/37'. This functionality strongly suggests the file acts as a downloader for further malicious activity.

Heuristics 6

Reference to URLDownloadToFile API critical SC_STR_URLDOWNLOAD

Reference to URLDownloadToFile API
Reference to ShellExecute API high SC_STR_SHELLEXEC

Reference to ShellExecute API
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.
Suspicious extracted artifact medium 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 https://orrmingnextyou.xyz/372873/svs.dll~
- https://orrmingnextyou.xyz/37

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xlm_macros.txt` `3ea77567f6ad89962a5aac9d0bb5954a283a794148163ebeca21aca6ee8133bb`	xlm-macro	oletools.olevba.extract_all_macros (XLM macro listing)	23163 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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