031f98c5ed164bdec7aa955a18d5ed926be4dcb4791da7b0df8fa0b499e1ee41

General

Target

031f98c5ed164bdec7aa955a18d5ed926be4dcb4791da7b0df8fa0b499e1ee41.xls
Size

99KB
MD5

8c7935e4eac6d3386bc28f357e49e45e
SHA1

8f9c340a8759d14b194832ce83d9ab2a41e89687
SHA256

031f98c5ed164bdec7aa955a18d5ed926be4dcb4791da7b0df8fa0b499e1ee41
SHA512

5de5fd928cbd08cb81992cf51395b2c09ce6f1601a3bc4b30727efb0f07a76e5c969e787947591624e75514dea56f3d41717dacef9759f0bb7c71540428ebf6d
SSDEEP

1536:33336WBy0UNBNIl2dcHt7TPkyq7OkRm0Z95Eq+JjMmXvWVbrzQAfwpTkR62ll06/:RK+2gWVbrzQI+Tk985JtXwE5ksCtR

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	308	4728	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	176	4728	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3552	4728	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\07375E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4728 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\07375E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE
4728	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4728 wrote to memory of 308	4728	EXCEL.EXE	cmd.exe
PID 4728 wrote to memory of 308	4728	EXCEL.EXE	cmd.exe
PID 4728 wrote to memory of 176	4728	EXCEL.EXE	cmd.exe
PID 4728 wrote to memory of 176	4728	EXCEL.EXE	cmd.exe
PID 4728 wrote to memory of 3552	4728	EXCEL.EXE	cmd.exe
PID 4728 wrote to memory of 3552	4728	EXCEL.EXE	cmd.exe
PID 308 wrote to memory of 4556	308	cmd.exe	attrib.exe
PID 308 wrote to memory of 4556	308	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4556 attrib.exe

pid	process
4556	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\031f98c5ed164bdec7aa955a18d5ed926be4dcb4791da7b0df8fa0b499e1ee41.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:4728

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:308

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4556

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:176

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:3552

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/176-140-0x0000000000000000-mapping.dmp

Download
memory/308-139-0x0000000000000000-mapping.dmp

Download
memory/3552-141-0x0000000000000000-mapping.dmp

Download
memory/4556-142-0x0000000000000000-mapping.dmp

Download
memory/4728-135-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-137-0x00007FFFAB600000-0x00007FFFAB610000-memory.dmp

Filesize
64KB

Download
memory/4728-138-0x00007FFFAB600000-0x00007FFFAB610000-memory.dmp

Filesize
64KB

Download
memory/4728-136-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-132-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-134-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-133-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-144-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-145-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-146-0x00007FFFADAD0000-0x00007FFFADAE0000-memory.dmp

Filesize
64KB

Download
memory/4728-147-0x00007FFFADAD0000-0x00007FFFADAE0000-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