e9fb46084e1431aebf7bb7d731c5c3c74d7edd253f5db8742208c360fec43a0c

General

Target

e9fb46084e1431aebf7bb7d731c5c3c74d7edd253f5db8742208c360fec43a0c.xls
Size

134KB
MD5

7e98bfa4e6f15977eaf2d3f5e676487f
SHA1

d630784420e295152b4527d59a1eea0cdeeb2b28
SHA256

e9fb46084e1431aebf7bb7d731c5c3c74d7edd253f5db8742208c360fec43a0c
SHA512

4c4c2ea6793b4dc461941467a06c720acfaf17bcfa8483840dd45596f5ffc1f946eae2bdeb7325b4d45cb4e10a967060b2eb9d64ec0c66fc5147db4e0c77fb2a
SSDEEP

3072:o4uIpU0/XL8nWVAAvArzQ7ITkDQM25kWU6vQLw6Jc:3/XL8RAej4M

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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3732	1036	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4392	1036	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1780	1036	cmd.exe	EXCEL.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1036 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1036 wrote to memory of 1540	1036	EXCEL.EXE	splwow64.exe
PID 1036 wrote to memory of 1540	1036	EXCEL.EXE	splwow64.exe
PID 1036 wrote to memory of 3732	1036	EXCEL.EXE	cmd.exe
PID 1036 wrote to memory of 3732	1036	EXCEL.EXE	cmd.exe
PID 1036 wrote to memory of 4392	1036	EXCEL.EXE	cmd.exe
PID 1036 wrote to memory of 4392	1036	EXCEL.EXE	cmd.exe
PID 1036 wrote to memory of 1780	1036	EXCEL.EXE	cmd.exe
PID 1036 wrote to memory of 1780	1036	EXCEL.EXE	cmd.exe
PID 3732 wrote to memory of 2492	3732	cmd.exe	attrib.exe
PID 3732 wrote to memory of 2492	3732	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2492 attrib.exe

pid	process
2492	attrib.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\e9fb46084e1431aebf7bb7d731c5c3c74d7edd253f5db8742208c360fec43a0c.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1036

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1540

C:\Windows\system32\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:3732

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2492

C:\Windows\system32\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:4392

C:\Windows\system32\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:1780

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:2484

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1036-145-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-132-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-133-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-135-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-148-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-137-0x00007FF88FE50000-0x00007FF88FE60000-memory.dmp

Filesize
64KB

Download
memory/1036-134-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-138-0x00007FF88FE50000-0x00007FF88FE60000-memory.dmp

Filesize
64KB

Download
memory/1036-136-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-147-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1036-146-0x00007FF892150000-0x00007FF892160000-memory.dmp

Filesize
64KB

Download
memory/1540-139-0x0000000000000000-mapping.dmp

Download
memory/1780-142-0x0000000000000000-mapping.dmp

Download
memory/2492-143-0x0000000000000000-mapping.dmp

Download
memory/3732-140-0x0000000000000000-mapping.dmp

Download
memory/4392-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads