Office (OLE) / .XLS malware analysis — malicious · bedbfb1ccdf7eb9b

MALICIOUS

Office (OLE) / .XLS

105.0 KB Created: 2021-04-13 13:37:17 Authoring application: Microsoft Excel

MD5: e0eeba7c5ad03dcb5ade3f858cd34e8e SHA-1: a8dc0b95e92b3d4566548c3354804badee6d8b83 SHA-256: bedbfb1ccdf7eb9bbd75771d7500946f7d917fb0e8fe8fa21942ada1a3cf6941

182 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The presence of a Workbook_Open VBA macro, combined with a CreateObject call and p-code execution, strongly indicates malicious intent. The macro is designed to download and execute a payload from the embedded URL, which is a common technique for initial access and further infection. No document body text was available for analysis, but the script behavior is clear.

Heuristics 6

Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
Suspicious extracted artifact high 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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
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 http://209.141.61.124/Q-2/asd80.ex

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `bbbee478cab317bf3f501e523a72d1a991867f07a216c6d5f975b43c991b6055`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1231 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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