3d287b130ab864f68e617e1bf1579311e6c77cf563f653443436e5c100f50a5e

General

Target

3d287b130ab864f68e617e1bf1579311e6c77cf563f653443436e5c100f50a5e.xls
Size

196KB
MD5

b0206a3a0056fa66c212cea933ca734c
SHA1

e48f5ff1ad7470417a949efef0ece87fbb17fd42
SHA256

3d287b130ab864f68e617e1bf1579311e6c77cf563f653443436e5c100f50a5e
SHA512

d4784e007f94446274eb3d2dffc35d8aae0049de37c08829c07361a8d025f20444d7eccd5dfb8aa6943cc332fdbd8eb9c89318c6c600cd9bfb034f094ee2bd37
SSDEEP

3072:tX1FCd1FK5d/n5TUz8WVbrzA7ITk9njhJtXwa5kXI2a:BChK5BLOI

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	1180	2612	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	560	2612	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3588	2612	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\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\88E65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2612 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2612 EXCEL.EXE
2612 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\88E65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE
2612	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2612 wrote to memory of 1180	2612	EXCEL.EXE	cmd.exe
PID 2612 wrote to memory of 1180	2612	EXCEL.EXE	cmd.exe
PID 2612 wrote to memory of 560	2612	EXCEL.EXE	cmd.exe
PID 2612 wrote to memory of 560	2612	EXCEL.EXE	cmd.exe
PID 2612 wrote to memory of 3588	2612	EXCEL.EXE	cmd.exe
PID 2612 wrote to memory of 3588	2612	EXCEL.EXE	cmd.exe
PID 1180 wrote to memory of 880	1180	cmd.exe	attrib.exe
PID 1180 wrote to memory of 880	1180	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

880 attrib.exe

pid	process
880	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\3d287b130ab864f68e617e1bf1579311e6c77cf563f653443436e5c100f50a5e.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2612

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:1180

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:880

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:560

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:3588

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

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Downloads

memory/560-140-0x0000000000000000-mapping.dmp

Download
memory/880-142-0x0000000000000000-mapping.dmp

Download
memory/1180-139-0x0000000000000000-mapping.dmp

Download
memory/2612-138-0x00007FFC42D80000-0x00007FFC42D90000-memory.dmp

Filesize
64KB

Download
memory/2612-136-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-137-0x00007FFC42D80000-0x00007FFC42D90000-memory.dmp

Filesize
64KB

Download
memory/2612-132-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-135-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-134-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-133-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-144-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-145-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-146-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/2612-147-0x00007FFC45150000-0x00007FFC45160000-memory.dmp

Filesize
64KB

Download
memory/3588-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads