Xls.Trojan.Laroux-1 Office (OLE) / .EXE malware analysis — malicious · f827f27a5ebc9568

MALICIOUS

Office (OLE) / .EXE

118.5 KB Authoring application: Microsoft Excel

MD5: cf8c6b1001c0b0ec9e0b830dea682836 SHA-1: 81e1338603c3a82e88940f14d50d23f319177971 SHA-256: f827f27a5ebc9568b36b680515b360748dc8187662deb2f56010e85d29a68519

180 Risk Score

Malware Insights

Xls.Trojan.Laroux-1 · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Xls.Trojan.Laroux-1. Static analysis detected VBA macros, specifically an Auto_Open macro, which is a common technique for executing malicious code upon opening an Office document. The presence of the Auto_Open macro strongly suggests the intent is to run arbitrary code, likely to download and execute a second-stage payload.

Heuristics 4

ClamAV: Xls.Trojan.Laroux-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Trojan.Laroux-1
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `0072ea53d191e53712753e91fcffbafa82d58452b5a5eea099b7832c880e41d4`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2632 bytes
Detection ClamAV: Xls.Trojan.Laroux-1 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.