9c61948c892b5365ef02363b309f10da5916748e4da27acfb9386e02974d9899

General

Target

9c61948c892b5365ef02363b309f10da5916748e4da27acfb9386e02974d9899.xls
Size

102KB
MD5

bcd93d5d501b3d310bda5e16146e56a3
SHA1

c5eb8d988c32ea4c86c7ac02f3ed1c6d73fc61bd
SHA256

9c61948c892b5365ef02363b309f10da5916748e4da27acfb9386e02974d9899
SHA512

bae554b45049fc599a1383705641c6821a5e857b33cffbe12895a65e2e5a224e4b56a81dc93ddc6defbfffe34d22bd15dfb9da7749cf54ef55250a5638a7a045
SSDEEP

1536:8tttB3DgcYuWYWWVbrzlf7ITkR62lGM88wcJtXwRpM2M/MJkd8G:hWVbrzV7ITk9tjDJtXwk5k6dN

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	1756	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1624	1756	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1856	1756	cmd.exe	EXCEL.EXE

Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

1756 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
1756	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
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\BE4E6000\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1756 EXCEL.EXE
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

1756 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1756 EXCEL.EXE
1756 EXCEL.EXE
1756 EXCEL.EXE
1756 EXCEL.EXE
1756 EXCEL.EXE
1756 EXCEL.EXE
1756 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\BE4E6000\:Zone.Identifier:$DATA	EXCEL.EXE

pid	process
1756	EXCEL.EXE

pid	process
1756	EXCEL.EXE

pid	process
1756	EXCEL.EXE
1756	EXCEL.EXE
1756	EXCEL.EXE
1756	EXCEL.EXE
1756	EXCEL.EXE
1756	EXCEL.EXE
1756	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1756 wrote to memory of 1548	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1548	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1548	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1548	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1624	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1624	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1624	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1624	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1856	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1856	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1856	1756	EXCEL.EXE	cmd.exe
PID 1756 wrote to memory of 1856	1756	EXCEL.EXE	cmd.exe
PID 1548 wrote to memory of 1424	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 1424	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 1424	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 1424	1548	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1424 attrib.exe

pid	process
1424	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\9c61948c892b5365ef02363b309f10da5916748e4da27acfb9386e02974d9899.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:1756

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:1424

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:1624

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:1856

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/1424-222-0x0000000000000000-mapping.dmp

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

Download
memory/1624-220-0x0000000000000000-mapping.dmp

Download
memory/1756-54-0x000000002F031000-0x000000002F034000-memory.dmp

Filesize
12KB

Download
memory/1756-55-0x0000000070F31000-0x0000000070F33000-memory.dmp

Filesize
8KB

Download
memory/1756-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1756-57-0x0000000071F1D000-0x0000000071F28000-memory.dmp

Filesize
44KB

Download
memory/1756-58-0x0000000075291000-0x0000000075293000-memory.dmp

Filesize
8KB

Download
memory/1756-383-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1756-384-0x0000000071F1D000-0x0000000071F28000-memory.dmp

Filesize
44KB

Download
memory/1856-221-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads