MALICIOUS
60
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1203 Exploitation for Client Execution
The critical heuristic firing indicates the presence of Excel 4.0 macros within the XLSX file. These macros are designed to execute arbitrary code, serving as the initial execution vector. The truncated script content prevents a detailed analysis of its specific actions, but the presence of XLM macros strongly suggests a downloader or dropper functionality.
Heuristics 1
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Excel 4.0 macro sheet (1 sheet(s)) critical OOXML_XLM_MACROSHEETSpreadsheet contains an Excel 4.0 (XLM) macro sheet — XLM was a major Office malware vector during 2020-2022 and evaded many VBA-focused controls before Microsoft tightened XLM defaults. Even legitimate XLM use is rare in modern workbooks. The macro sheet is stored as XLSB/BIFF12 binary content, which many XML-only OOXML scanners miss.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_sheet_00.bindf792e080ae74a57ae57ecb7231a2ee595b48c45fb1c408c8721d2148b6d1f92 |
xlm-macrosheet | OOXML XLM macro sheet: xl/macrosheets/sheet1.bin | 22875 bytes |
Preview scriptFirst 1,000 lines of the extracted script
� � � @ �������� � � � � � � @ d � $ � � % �� & � ���� , � % �� & , � [ % �� & , �
U B l y N u M x C b Q N H Z Dx � D� � D� � D� � B X % �� & , �
= * W s P n t p B F T o q z $� � B X � � % �� & , �
$ � B � � % �� & , �
$� � B � J - % �� & , � \ e % �� &
, � � % �� & , � {
%� C # B a�B 7 % �� & , � : $ % �� & , � � % �� & , � � % �� & , � � % �� & , � � % �� & , � , a @% �� & , � " % �� & , � x % �� & , � � ( % �� & " , � � % �� & $ , � � @% �� & % , � . z � + % �� & & , � % �� & ' , � e % �� & * , � � % �� & + , � �
% �� & , , �
" % �� & - , � � % �� & . , � t @ � & � % �� & 0 , � �
� � # % �� & 1 , � 1 % �� & 3 , � + % �� & 4 , � ! m
e� R l y N u M x C b Q N H Z D� � Df ` D0 � D" � D� � D� z B X % �� & 5 , �
=� * W s P n t p B F T o q z $� � B X % �� & 6 , � �
� $ � B � % �� & 7 , �
� $� � B � % �� & 8 , � G � % �� & ; , �
uG b l y N u M x C b Q N H Z D� � D0 � DS � D� � D� D� � D� D� � B X % �� & < , �
=G * W s P n t p B F T o q z $� � B X % �� & = , � 9
G $ � B � % �� & > , �
G $� � B � % �� & @ , � @ �|@ ^ � % �� & A , � @ @% �� & B , �
u& b l y N u M x C b Q N H Z D x Dd ` D� H D� � D� � D� � D� n D. t B X l % �� & C , �
=& * W s P n t p B F T o q z $/ ) B X % �� & D , �
& $ � B � o q ) | � ( % �� & E , �
& $ � B � % �� & K , � � % �� & M , � ' @% �� & T , - � - * % �� & U , - � K ' � % %
... (truncated)
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