8c5de22c8438d848a0706bc38edd88caedf26b26ea91f806081c09101429fbb6

General

Target

8c5de22c8438d848a0706bc38edd88caedf26b26ea91f806081c09101429fbb6.xls
Size

313KB
MD5

0a0e0f28d9b338a71e4aa9db9a018302
SHA1

e89c81f6ac48bd8d4a302fc870c9566d08389a8a
SHA256

8c5de22c8438d848a0706bc38edd88caedf26b26ea91f806081c09101429fbb6
SHA512

9468c5cc754794d677bfe109ea40d4cc6452103b8c9e20b1819a22c7b1340ba7a2aa5416ebb3bbf09f63d839c079e7116a06ce769984ad6e8f03c989761668d7
SSDEEP

6144:Hng93jn6NEQFk0J9yI8AKExDeJqyFjhhPB51MJ2:HKeEKk0zy/AKY2x5H2

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	1252	2320	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2804	2320	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3272	2320	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

2320 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE
2320	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2320 wrote to memory of 1252	2320	EXCEL.EXE	cmd.exe
PID 2320 wrote to memory of 1252	2320	EXCEL.EXE	cmd.exe
PID 2320 wrote to memory of 2804	2320	EXCEL.EXE	cmd.exe
PID 2320 wrote to memory of 2804	2320	EXCEL.EXE	cmd.exe
PID 2320 wrote to memory of 3272	2320	EXCEL.EXE	cmd.exe
PID 2320 wrote to memory of 3272	2320	EXCEL.EXE	cmd.exe
PID 1252 wrote to memory of 5100	1252	cmd.exe	attrib.exe
PID 1252 wrote to memory of 5100	1252	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

5100 attrib.exe

pid	process
5100	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\8c5de22c8438d848a0706bc38edd88caedf26b26ea91f806081c09101429fbb6.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2320

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:1252

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:5100

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:2804

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:3272

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/1252-139-0x0000000000000000-mapping.dmp

Download
memory/2320-138-0x00007FFCEC080000-0x00007FFCEC090000-memory.dmp

Filesize
64KB

Download
memory/2320-144-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-135-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-136-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-137-0x00007FFCEC080000-0x00007FFCEC090000-memory.dmp

Filesize
64KB

Download
memory/2320-132-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-133-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-147-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-146-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-145-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2320-134-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2804-140-0x0000000000000000-mapping.dmp

Download
memory/3272-141-0x0000000000000000-mapping.dmp

Download
memory/5100-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads