336881acf83a746fcb12f6ce05d144f536f54d39ad70a823894d49f4b8ac60f8

General

Target

336881acf83a746fcb12f6ce05d144f536f54d39ad70a823894d49f4b8ac60f8.xls
Size

127KB
MD5

75b9ab173f592408b2e909fedc27d3f9
SHA1

b436506f32ec3ff1bab9ddecf5d7621d06a77a0b
SHA256

336881acf83a746fcb12f6ce05d144f536f54d39ad70a823894d49f4b8ac60f8
SHA512

8d353e466d4e2ea134db4dabc4559745978d44124286e6b5724b6fb9dc4bbd3b140a4839f8e9d667064cd6798c156be2003cabdec84329398468258bcfa18e10
SSDEEP

3072:Jqc9FU5TjjWVbrzQ7ITkDiEdJtXwH5ka/U:JqX7G

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.execmd.execmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1548	848	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1076	848	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1592	848	cmd.exe	EXCEL.EXE

Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

848 EXCEL.EXE
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

pid	process
848	EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\6E3F6000\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

848 EXCEL.EXE
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

848 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

848 EXCEL.EXE
848 EXCEL.EXE
848 EXCEL.EXE
848 EXCEL.EXE
848 EXCEL.EXE
848 EXCEL.EXE
848 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\6E3F6000\:Zone.Identifier:$DATA	EXCEL.EXE

pid	process
848	EXCEL.EXE

pid	process
848	EXCEL.EXE

pid	process
848	EXCEL.EXE
848	EXCEL.EXE
848	EXCEL.EXE
848	EXCEL.EXE
848	EXCEL.EXE
848	EXCEL.EXE
848	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 848 wrote to memory of 1548	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1548	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1548	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1548	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1076	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1076	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1076	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1076	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1592	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1592	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1592	848	EXCEL.EXE	cmd.exe
PID 848 wrote to memory of 1592	848	EXCEL.EXE	cmd.exe
PID 1548 wrote to memory of 888	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 888	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 888	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 888	1548	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

888 attrib.exe

pid	process
888	attrib.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\336881acf83a746fcb12f6ce05d144f536f54d39ad70a823894d49f4b8ac60f8.xls
1⤵
- Deletes itself
- Enumerates system info in registry
- Modifies Internet Explorer settings
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:888

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:1076

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:1592

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/848-54-0x000000002F061000-0x000000002F064000-memory.dmp

Filesize
12KB

Download
memory/848-55-0x0000000070DD1000-0x0000000070DD3000-memory.dmp

Filesize
8KB

Download
memory/848-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/848-57-0x0000000071DBD000-0x0000000071DC8000-memory.dmp

Filesize
44KB

Download
memory/848-58-0x0000000074FA1000-0x0000000074FA3000-memory.dmp

Filesize
8KB

Download
memory/848-223-0x0000000071DBD000-0x0000000071DC8000-memory.dmp

Filesize
44KB

Download
memory/848-224-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/848-225-0x0000000071DBD000-0x0000000071DC8000-memory.dmp

Filesize
44KB

Download
memory/888-222-0x0000000000000000-mapping.dmp

Download
memory/1076-220-0x0000000000000000-mapping.dmp

Download
memory/1548-219-0x0000000000000000-mapping.dmp

Download
memory/1592-221-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads