90a8ed62942b48191d73188e9e8baff46077de97b69fecc17dbf6e964e77525d

General

Target

90a8ed62942b48191d73188e9e8baff46077de97b69fecc17dbf6e964e77525d.xls
Size

225KB
MD5

d95513314d289d81ac50d472e72c4c4d
SHA1

877d9e12bb469e6b52220c6b26bad85337b3d68a
SHA256

90a8ed62942b48191d73188e9e8baff46077de97b69fecc17dbf6e964e77525d
SHA512

dfb76f9fcd851ab912dcd5d17838760b7b8540cd2baf45be4cd5d23c07a4c8be2beab71a4a801f917ecd548dd85b54697d6cb63ab274ceacbaa137971224d034
SSDEEP

3072:1YjPEOOPTguRLMZBcSOhAA/MCXxl+ZWVbihlzQ7ITk9I03L3FoJLXwN5kBNb:RAZ2SO2YMCXqdS3L3Y

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	1100	1468	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1564	1468	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	756	1468	cmd.exe	EXCEL.EXE

Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

1468 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
1468	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-1-5-21-575491160-2295418218-1540667289-1000\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-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\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-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\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\D7AD6000\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1468 EXCEL.EXE
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

1468 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1468 EXCEL.EXE
1468 EXCEL.EXE
1468 EXCEL.EXE
1468 EXCEL.EXE
1468 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\D7AD6000\:Zone.Identifier:$DATA	EXCEL.EXE

pid	process
1468	EXCEL.EXE

pid	process
1468	EXCEL.EXE

pid	process
1468	EXCEL.EXE
1468	EXCEL.EXE
1468	EXCEL.EXE
1468	EXCEL.EXE
1468	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1468 wrote to memory of 1100	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 1100	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 1100	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 1100	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 1564	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 1564	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 1564	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 1564	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 756	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 756	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 756	1468	EXCEL.EXE	cmd.exe
PID 1468 wrote to memory of 756	1468	EXCEL.EXE	cmd.exe
PID 1100 wrote to memory of 1012	1100	cmd.exe	attrib.exe
PID 1100 wrote to memory of 1012	1100	cmd.exe	attrib.exe
PID 1100 wrote to memory of 1012	1100	cmd.exe	attrib.exe
PID 1100 wrote to memory of 1012	1100	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1012 attrib.exe

pid	process
1012	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\90a8ed62942b48191d73188e9e8baff46077de97b69fecc17dbf6e964e77525d.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:1468

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:1100

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1012

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:1564

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:756

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/756-221-0x0000000000000000-mapping.dmp

Download
memory/1012-222-0x0000000000000000-mapping.dmp

Download
memory/1100-219-0x0000000000000000-mapping.dmp

Download
memory/1468-54-0x000000002FAF1000-0x000000002FAF4000-memory.dmp

Filesize
12KB

Download
memory/1468-55-0x0000000071D21000-0x0000000071D23000-memory.dmp

Filesize
8KB

Download
memory/1468-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1468-57-0x0000000072D0D000-0x0000000072D18000-memory.dmp

Filesize
44KB

Download
memory/1468-58-0x00000000760B1000-0x00000000760B3000-memory.dmp

Filesize
8KB

Download
memory/1468-223-0x0000000072D0D000-0x0000000072D18000-memory.dmp

Filesize
44KB

Download
memory/1468-384-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1468-385-0x0000000072D0D000-0x0000000072D18000-memory.dmp

Filesize
44KB

Download
memory/1564-220-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads