5c50dbc8fa64024ba74d6af4dce9e076dc095152caf9d4f96df2dcfd5c06b3ba

General

Target

5c50dbc8fa64024ba74d6af4dce9e076dc095152caf9d4f96df2dcfd5c06b3ba.xls
Size

118KB
MD5

f5e229509c3d4a460b21f305f3b4419c
SHA1

95e91b3223ad8aed5391baf3edb5529f7a67aacb
SHA256

5c50dbc8fa64024ba74d6af4dce9e076dc095152caf9d4f96df2dcfd5c06b3ba
SHA512

abd222d2ee822fafbfe510c586dcd5683e2b276df0befd907cb9a0ec5e738412711262137bbd534487688fe9798b43ab0a0d447515864fcef3dda7c92a84c326
SSDEEP

3072:d3V/0m+zjWVbauzQ7ITk9f2AJtXw55ksk:dqC2

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	4028	5072	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2712	5072	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3448	5072	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

5072 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE
5072	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 5072 wrote to memory of 3448	5072	EXCEL.EXE	cmd.exe
PID 5072 wrote to memory of 3448	5072	EXCEL.EXE	cmd.exe
PID 5072 wrote to memory of 4028	5072	EXCEL.EXE	cmd.exe
PID 5072 wrote to memory of 4028	5072	EXCEL.EXE	cmd.exe
PID 5072 wrote to memory of 2712	5072	EXCEL.EXE	cmd.exe
PID 5072 wrote to memory of 2712	5072	EXCEL.EXE	cmd.exe
PID 3448 wrote to memory of 1796	3448	cmd.exe	attrib.exe
PID 3448 wrote to memory of 1796	3448	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1796 attrib.exe

pid	process
1796	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\5c50dbc8fa64024ba74d6af4dce9e076dc095152caf9d4f96df2dcfd5c06b3ba.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5072

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:4028

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:2712

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:3448

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1796

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\a4da6e02f1b445bc9f05b2095d7b8b25 /t 1232 /p 5072
1⤵
PID:3960

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/1796-142-0x0000000000000000-mapping.dmp

Download
memory/2712-141-0x0000000000000000-mapping.dmp

Download
memory/3448-139-0x0000000000000000-mapping.dmp

Download
memory/4028-140-0x0000000000000000-mapping.dmp

Download
memory/5072-136-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-137-0x00007FFF58060000-0x00007FFF58070000-memory.dmp

Filesize
64KB

Download
memory/5072-138-0x00007FFF58060000-0x00007FFF58070000-memory.dmp

Filesize
64KB

Download
memory/5072-132-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-135-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-133-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-134-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-143-0x000001FE05566000-0x000001FE05568000-memory.dmp

Filesize
8KB

Download
memory/5072-144-0x000001FE05566000-0x000001FE05568000-memory.dmp

Filesize
8KB

Download
memory/5072-146-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-147-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-148-0x00007FFF5A410000-0x00007FFF5A420000-memory.dmp

Filesize
64KB

Download
memory/5072-149-0x00007FFF5A410000-0x00007FFF5A420000-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