e8c5695d419e46b333cf085ffe84813db1c85643415900d075c0bd46a311460b

General

Target

e8c5695d419e46b333cf085ffe84813db1c85643415900d075c0bd46a311460b.xls
Size

97KB
MD5

7692ff912b0f31f8611b86693a99428b
SHA1

5b0199a84bfc3e32cfbd5aa2d8f0203d5783c9a5
SHA256

e8c5695d419e46b333cf085ffe84813db1c85643415900d075c0bd46a311460b
SHA512

c944303d84d3e28ba7955421e0e14c9de1fb5653aa512b65f9a30fe8d9af08c51647a62ab74cfe93c42f82d833067ed6cd562faa894a6dd6712f87c0f6abfe99
SSDEEP

1536:3IIIIkK1FSN1ebnuCWVb9TZuSzQ7ITkR62lIM88S6JtXwRZM2M/MkpR0q:nWVb9T1zQ7ITk97jDJtXws5kkiq

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	5088	4944	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1156	4944	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3848	4944	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

4944 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE
4944	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4944 wrote to memory of 5088	4944	EXCEL.EXE	cmd.exe
PID 4944 wrote to memory of 5088	4944	EXCEL.EXE	cmd.exe
PID 4944 wrote to memory of 1156	4944	EXCEL.EXE	cmd.exe
PID 4944 wrote to memory of 1156	4944	EXCEL.EXE	cmd.exe
PID 4944 wrote to memory of 3848	4944	EXCEL.EXE	cmd.exe
PID 4944 wrote to memory of 3848	4944	EXCEL.EXE	cmd.exe
PID 5088 wrote to memory of 2316	5088	cmd.exe	attrib.exe
PID 5088 wrote to memory of 2316	5088	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2316 attrib.exe

pid	process
2316	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\e8c5695d419e46b333cf085ffe84813db1c85643415900d075c0bd46a311460b.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4944

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:5088

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2316

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:1156

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:3848

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

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Downloads

memory/1156-140-0x0000000000000000-mapping.dmp

Download
memory/2316-142-0x0000000000000000-mapping.dmp

Download
memory/3848-141-0x0000000000000000-mapping.dmp

Download
memory/4944-135-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-136-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-137-0x00007FF8C9610000-0x00007FF8C9620000-memory.dmp

Filesize
64KB

Download
memory/4944-138-0x00007FF8C9610000-0x00007FF8C9620000-memory.dmp

Filesize
64KB

Download
memory/4944-132-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-133-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-134-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-144-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-145-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-146-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/4944-147-0x00007FF8CB670000-0x00007FF8CB680000-memory.dmp

Filesize
64KB

Download
memory/5088-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads