Office (OLE) / .XLS malware analysis — malicious · 893acfbd363432f5

MALICIOUS

Office (OLE) / .XLS

717.5 KB Created: 2020-06-22 10:41:03 Authoring application: Microsoft Excel

MD5: 2f5fc985144296ab73783ae4fe911d74 SHA-1: b38db4f5a3639ad93bbc3ce6e80eb565dcfe3ad4 SHA-256: 893acfbd363432f5d19aa989cf24f67b9abbbcd34dc82637b68da59b980e21f2

340 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

This XLS file contains a Workbook_Open macro that utilizes the Shell() function, indicating an attempt to execute external commands. The presence of 'SC_STR_WSCRIPT' and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' further supports this. The ClamAV detection of 'Xls.Packed.Logan-9738662-0' suggests a known malicious pattern. The macro likely downloads and executes a second-stage payload, as suggested by the combination of shell execution and packed nature.

Heuristics 8

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Xls.Packed.Logan-9738662-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Packed.Logan-9738662-0
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `38914cdf3136c806ee17787d05d20009b8f47a53c3746a58c6d3b1ba4d51a035`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	22716 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.
`ole10native_00.bin` `db6663486881c55714aa8f2b27ef6c462dfd620eeabf1f8a54cd29bd70b146c9`	ole-package	OLE Ole10Native stream: MBD00125222/Ole10Native	431319 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.98, consistent with packed or encrypted content.

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