8282977b24c505fb08ebdb60b2a86396f387d52a7379a1d52dffb44d5d9ec55f

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 19:26

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General

Target

8282977b24c505fb08ebdb60b2a86396f387d52a7379a1d52dffb44d5d9ec55f.xls
Size

128KB
MD5

ed472165e3c1592055df3aafd8b0c1e0
SHA1

4fd9cf8cf8d6c8abf54bc7b5094a6e8fe52cd79d
SHA256

8282977b24c505fb08ebdb60b2a86396f387d52a7379a1d52dffb44d5d9ec55f
SHA512

adc464dac8530419b7b20a1615b13b3d073f509ee2b1e4af497ac42d16c971a85c165459586a2659a584a00448769656aa81c62364481c06e1c6f366e4ac3de1
SSDEEP

1536:Mjjjjn1/foa2WVbrzQ7ITPI4PR62bzM88e80UX4JHD6kCtzSAYWQx803053RX:rWVbrzQ7ITAw9Ujn0UX4ZdCcj80EJ

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	3276	1488	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5052	1488	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4092	1488	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

1488 EXCEL.EXE

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

EXCEL.EXE

pid	process
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1488 wrote to memory of 3276	1488	EXCEL.EXE	cmd.exe
PID 1488 wrote to memory of 3276	1488	EXCEL.EXE	cmd.exe
PID 1488 wrote to memory of 5052	1488	EXCEL.EXE	cmd.exe
PID 1488 wrote to memory of 5052	1488	EXCEL.EXE	cmd.exe
PID 1488 wrote to memory of 4092	1488	EXCEL.EXE	cmd.exe
PID 1488 wrote to memory of 4092	1488	EXCEL.EXE	cmd.exe
PID 3276 wrote to memory of 5012	3276	cmd.exe	attrib.exe
PID 3276 wrote to memory of 5012	3276	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

5012 attrib.exe

pid	process
5012	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\8282977b24c505fb08ebdb60b2a86396f387d52a7379a1d52dffb44d5d9ec55f.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1488

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:3276

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:5012

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:5052

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:4092

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/1488-132-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/1488-133-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/1488-134-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/1488-135-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/1488-136-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/1488-137-0x00007FFC6E780000-0x00007FFC6E790000-memory.dmp

Filesize
64KB

Download
memory/1488-138-0x00007FFC6E780000-0x00007FFC6E790000-memory.dmp

Filesize
64KB

Download
memory/3276-139-0x0000000000000000-mapping.dmp

Download
memory/4092-141-0x0000000000000000-mapping.dmp

Download
memory/5012-142-0x0000000000000000-mapping.dmp

Download
memory/5052-140-0x0000000000000000-mapping.dmp

Download