b6a7c9b81734f4fa88724fe7f64454535f692d3fe005e329da6715b51c29fab5

General

Target

b6a7c9b81734f4fa88724fe7f64454535f692d3fe005e329da6715b51c29fab5.xls
Size

148KB
MD5

180d4e22d8657c7c0b1aca0eaf012d7c
SHA1

eebc8152b44b924624a461d1c6e666bf05680762
SHA256

b6a7c9b81734f4fa88724fe7f64454535f692d3fe005e329da6715b51c29fab5
SHA512

39f7b019140b93a286ea515d9ad24a113ab9a78cec2ea935947153555058fdb8c1044ba839f36037aa4b1d43437be6c20bfda0c1e6ea7d7abab40acc6c0d40f4
SSDEEP

1536:lgggg6YGVtLe53PnG0K9LQU385aiUCXT5mDRJKY2RLwvwN2jcc0lbxOvTgZMkI/S:2e53PnhYL82jcc0lbxOrYIEJtXwgf

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	3820	4960	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3116	4960	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2688	4960	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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\FAD75E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4960 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\FAD75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4960 wrote to memory of 3820	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 3820	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 3116	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 3116	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 2688	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 2688	4960	EXCEL.EXE	cmd.exe
PID 3820 wrote to memory of 4780	3820	cmd.exe	attrib.exe
PID 3820 wrote to memory of 4780	3820	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4780 attrib.exe

pid	process
4780	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\b6a7c9b81734f4fa88724fe7f64454535f692d3fe005e329da6715b51c29fab5.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4960

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:3820

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4780

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:3116

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:2688

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/2688-141-0x0000000000000000-mapping.dmp

Download
memory/3116-140-0x0000000000000000-mapping.dmp

Download
memory/3820-139-0x0000000000000000-mapping.dmp

Download
memory/4780-142-0x0000000000000000-mapping.dmp

Download
memory/4960-135-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-137-0x00007FFFAB600000-0x00007FFFAB610000-memory.dmp

Filesize
64KB

Download
memory/4960-138-0x00007FFFAB600000-0x00007FFFAB610000-memory.dmp

Filesize
64KB

Download
memory/4960-136-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-132-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-134-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-133-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-144-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-145-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-147-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4960-146-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads