41d16f38f7fcd1569f05c1b17dd869168ece6a626b65bbd2df1cd9a08b4fdb25

General

Target

c2e5f1d7d6f695ce05e13a78e371771d.xls
Size

166KB
MD5

c2e5f1d7d6f695ce05e13a78e371771d
SHA1

00ef694207dd24bcec1b8d851b936f065df0972a
SHA256

41d16f38f7fcd1569f05c1b17dd869168ece6a626b65bbd2df1cd9a08b4fdb25
SHA512

2fb3040123ffea0b4ec3a9a37b37559bab89ca823b71727f4815eef2f203b68ba8aa279795f2f611861c23a29e202a0fc0007bd21433a683e1927c7078a9439b
SSDEEP

3072:6Ok3hOdsylKlgryzc4bNhZFGzE+cL2knL/Qfe3J2jcc0lbxOGiJtXwmyypRyT:6Ok3hOdsylKlgryzc4bNhZF+E+W2knLt

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	4956	4920	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3044	4920	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4216	4920	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\BBE65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4920 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\BBE65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE
4920	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4920 wrote to memory of 1432	4920	EXCEL.EXE	splwow64.exe
PID 4920 wrote to memory of 1432	4920	EXCEL.EXE	splwow64.exe
PID 4920 wrote to memory of 4956	4920	EXCEL.EXE	cmd.exe
PID 4920 wrote to memory of 4956	4920	EXCEL.EXE	cmd.exe
PID 4920 wrote to memory of 4216	4920	EXCEL.EXE	cmd.exe
PID 4920 wrote to memory of 4216	4920	EXCEL.EXE	cmd.exe
PID 4920 wrote to memory of 3044	4920	EXCEL.EXE	cmd.exe
PID 4920 wrote to memory of 3044	4920	EXCEL.EXE	cmd.exe
PID 4956 wrote to memory of 3772	4956	cmd.exe	attrib.exe
PID 4956 wrote to memory of 3772	4956	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3772 attrib.exe

pid	process
3772	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\c2e5f1d7d6f695ce05e13a78e371771d.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:4920

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1432

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:4956

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3772

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:3044

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:4216

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:116

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/1432-139-0x0000000000000000-mapping.dmp

Download
memory/3044-142-0x0000000000000000-mapping.dmp

Download
memory/3772-143-0x0000000000000000-mapping.dmp

Download
memory/4216-141-0x0000000000000000-mapping.dmp

Download
memory/4920-137-0x00007FFF01C40000-0x00007FFF01C50000-memory.dmp

Filesize
64KB

Download
memory/4920-146-0x0000019D837D2000-0x0000019D837D4000-memory.dmp

Filesize
8KB

Download
memory/4920-138-0x00007FFF01C40000-0x00007FFF01C50000-memory.dmp

Filesize
64KB

Download
memory/4920-136-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-151-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-135-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-134-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-133-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-144-0x0000019D837D2000-0x0000019D837D4000-memory.dmp

Filesize
8KB

Download
memory/4920-145-0x0000019D83E04000-0x0000019D83E06000-memory.dmp

Filesize
8KB

Download
memory/4920-132-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-147-0x0000019D837D2000-0x0000019D837D4000-memory.dmp

Filesize
8KB

Download
memory/4920-149-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-150-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4920-152-0x00007FFF03F50000-0x00007FFF03F60000-memory.dmp

Filesize
64KB

Download
memory/4956-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads