AgentTesla Office (OLE) / .XLS malware analysis — malicious · 69c402da411f9787

MALICIOUS

Office (OLE) / .XLS

31.5 KB Created: 2023-08-15 06:46:02 Authoring application: Microsoft Excel First seen: 2023-08-15

MD5: 448a41b26d8ed4728673e733bce477e3 SHA-1: efe4b0cc7085919506f9c46e792f4e47f99c4743 SHA-256: 69c402da411f978713ec188c3b3aa3fb6b9ad1a73875680b2c93bbce25d14323

222 Risk Score

Malware Insights

AgentTesla · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The Auto_Open VBA macro executes a Shell command that decodes a PowerShell command. This command downloads a second-stage executable named 'Services.exe' from 'http://sales1.azzamprocurements.org/Services.exe' and saves it as 'RFQ-2067.exe', then executes it. The ClamAV detection confirms this is AgentTesla, a known information stealer.

Heuristics 6

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Win.Dropper.AgentTesla-9969002-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Dropper.AgentTesla-9969002-0
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `48c841e14c36ea6ed92f4f3b048b93d65d9140909aba7509333f89d64afe4d6a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1453 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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