d7193571b1e67c3d329668e54fd9438995e9338ca27857ddccac93a46fdda15f

Analysis

max time kernel
155s
max time network
192s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 03:10

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General

Target

2014ӻڶöʾ.xls
Size

154KB
MD5

fba52be3a68237efed94861936bbe328
SHA1

cba13e94d26972c9c6438eda681bbb42a53f419a
SHA256

e352396a341852856acdeab033e52bc0e1440fe5ee92a9867db2c836f4bf588f
SHA512

6275f12e5d6b60877924d855b85ddde195fea95d098b2a76d68065e054e08792f9c7061561dc5d29acfb0781871c42f854746bc0a4608545ead3f6d088180044
SSDEEP

3072:SeMxwjLk2pR+BFttquNGqiq94w+WwsP22jcc0lbxOKTjXJtXw9q5:/MxwjtL+9f2Q

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	1244	32	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3724	32	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3144	32	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

32 EXCEL.EXE
Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid process

32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE
32 EXCEL.EXE

pid	process
32	EXCEL.EXE

pid	process
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE
32	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 32 wrote to memory of 1244	32	EXCEL.EXE	cmd.exe
PID 32 wrote to memory of 1244	32	EXCEL.EXE	cmd.exe
PID 32 wrote to memory of 3724	32	EXCEL.EXE	cmd.exe
PID 32 wrote to memory of 3724	32	EXCEL.EXE	cmd.exe
PID 32 wrote to memory of 3144	32	EXCEL.EXE	cmd.exe
PID 32 wrote to memory of 3144	32	EXCEL.EXE	cmd.exe
PID 1244 wrote to memory of 2628	1244	cmd.exe	attrib.exe
PID 1244 wrote to memory of 2628	1244	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2628 attrib.exe

pid	process
2628	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\2014ӻڶöʾ.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:32

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:1244

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2628

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:3724

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:3144

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\9d9db6aaa0984f8e94d10990f3ecd79a /t 208 /p 32
1⤵
PID:3488

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/32-132-0x00007FF9A0410000-0x00007FF9A0420000-memory.dmp

Filesize
64KB

Download
memory/32-133-0x00007FF9A0410000-0x00007FF9A0420000-memory.dmp

Filesize
64KB

Download
memory/32-134-0x00007FF9A0410000-0x00007FF9A0420000-memory.dmp

Filesize
64KB

Download
memory/32-135-0x00007FF9A0410000-0x00007FF9A0420000-memory.dmp

Filesize
64KB

Download
memory/32-136-0x00007FF9A0410000-0x00007FF9A0420000-memory.dmp

Filesize
64KB

Download
memory/32-137-0x00007FF99E140000-0x00007FF99E150000-memory.dmp

Filesize
64KB

Download
memory/32-138-0x00007FF99E140000-0x00007FF99E150000-memory.dmp

Filesize
64KB

Download
memory/1244-139-0x0000000000000000-mapping.dmp

Download
memory/2628-142-0x0000000000000000-mapping.dmp

Download
memory/3144-141-0x0000000000000000-mapping.dmp

Download
memory/3724-140-0x0000000000000000-mapping.dmp

Download