1046a3fbb527397aef702f47b6b3e68f8aa96f339669f262f54334b42ae446a4

General

Target

1046a3fbb527397aef702f47b6b3e68f8aa96f339669f262f54334b42ae446a4.xls
Size

196KB
MD5

e8c446c31ed0efa3c0543f22b99e57fe
SHA1

66db1596ad98d6e20cada192b1c3e853b60d654a
SHA256

1046a3fbb527397aef702f47b6b3e68f8aa96f339669f262f54334b42ae446a4
SHA512

b98cfaa4d9b5992765091986f0c806ff34891ffb6034e9c7ea5a75ea3ea0dc423d5c7b5e6bf6bd7f32dbe1702dff2d514204553e44f9d63f3efcee7addf918c4
SSDEEP

3072:PvmSN6UIpcmfl7+QHPrVf5Hxvdx8H3WVbrzQ7ITktLjhJtXw0e:nm4rIEYf5Hxvdx8HZ

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	3284	1352	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4684	1352	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4352	1352	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1352 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE
1352	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1352 wrote to memory of 3284	1352	EXCEL.EXE	cmd.exe
PID 1352 wrote to memory of 3284	1352	EXCEL.EXE	cmd.exe
PID 1352 wrote to memory of 4684	1352	EXCEL.EXE	cmd.exe
PID 1352 wrote to memory of 4684	1352	EXCEL.EXE	cmd.exe
PID 1352 wrote to memory of 4352	1352	EXCEL.EXE	cmd.exe
PID 1352 wrote to memory of 4352	1352	EXCEL.EXE	cmd.exe
PID 3284 wrote to memory of 1628	3284	cmd.exe	attrib.exe
PID 3284 wrote to memory of 1628	3284	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1628 attrib.exe

pid	process
1628	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\1046a3fbb527397aef702f47b6b3e68f8aa96f339669f262f54334b42ae446a4.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1352

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:3284

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1628

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:4684

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:4352

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1352-144-0x0000023CC704B000-0x0000023CC704D000-memory.dmp

Filesize
8KB

Download
memory/1352-136-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-149-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-135-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-148-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-137-0x00007FFFBD930000-0x00007FFFBD940000-memory.dmp

Filesize
64KB

Download
memory/1352-138-0x00007FFFBD930000-0x00007FFFBD940000-memory.dmp

Filesize
64KB

Download
memory/1352-147-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-133-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-134-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-139-0x0000023CC704B000-0x0000023CC704D000-memory.dmp

Filesize
8KB

Download
memory/1352-146-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1352-132-0x00007FFFBFE70000-0x00007FFFBFE80000-memory.dmp

Filesize
64KB

Download
memory/1628-143-0x0000000000000000-mapping.dmp

Download
memory/3284-140-0x0000000000000000-mapping.dmp

Download
memory/4352-142-0x0000000000000000-mapping.dmp

Download
memory/4684-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads