451d07e3da8910319f8b621fe073649595005c5fc9f0bb1b81ec986766297e6e

General

Target

451d07e3da8910319f8b621fe073649595005c5fc9f0bb1b81ec986766297e6e.xls
Size

99KB
MD5

b1b0179f88ee95552eff13d53cde4a81
SHA1

451721d6df5ac70762de3fc7f2bf78373949edb5
SHA256

451d07e3da8910319f8b621fe073649595005c5fc9f0bb1b81ec986766297e6e
SHA512

666f076f8b88e98a0c5d20b201569fd4e9a12f055f1ed55a5c29b08c108e2112743f74b602ab79c4feb63c476c9f1946ecb9944d50ca31c4fad0e151c8a0e856
SSDEEP

3072:d+l6Nc7yRzs1H75wkZUgsQ6NqTBun5oA2jcc0lbxOKK/vX1qiTb:Ul6Nc7yRzs1H75wkZUgsQ6NqTBun5obL

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	556	1892	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1724	1892	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	776	1892	cmd.exe	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

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 (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
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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\Se&nd to OneNote	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
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 (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\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1892 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE

pid	process
1892	EXCEL.EXE

pid	process
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1892 wrote to memory of 556	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 556	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 556	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 556	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 1724	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 1724	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 1724	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 1724	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 776	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 776	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 776	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 776	1892	EXCEL.EXE	cmd.exe
PID 556 wrote to memory of 1832	556	cmd.exe	attrib.exe
PID 556 wrote to memory of 1832	556	cmd.exe	attrib.exe
PID 556 wrote to memory of 1832	556	cmd.exe	attrib.exe
PID 556 wrote to memory of 1832	556	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1832 attrib.exe

pid	process
1832	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\451d07e3da8910319f8b621fe073649595005c5fc9f0bb1b81ec986766297e6e.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1892

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:556

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1832

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:1724

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:776

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/556-219-0x0000000000000000-mapping.dmp

Download
memory/776-221-0x0000000000000000-mapping.dmp

Download
memory/1724-220-0x0000000000000000-mapping.dmp

Download
memory/1832-222-0x0000000000000000-mapping.dmp

Download
memory/1892-54-0x000000002F061000-0x000000002F064000-memory.dmp

Filesize
12KB

Download
memory/1892-55-0x0000000070FE1000-0x0000000070FE3000-memory.dmp

Filesize
8KB

Download
memory/1892-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1892-57-0x0000000071FCD000-0x0000000071FD8000-memory.dmp

Filesize
44KB

Download
memory/1892-58-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1892-223-0x0000000071FCD000-0x0000000071FD8000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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