a9cd9a4b06a19b06652322bfffdced032c3f0a62febdb843710eeb1ac429e575

General

Target

a9cd9a4b06a19b06652322bfffdced032c3f0a62febdb843710eeb1ac429e575.xls
Size

238KB
MD5

7c24257cb1f19d9fe394badacb3042c3
SHA1

99010bb14c652fd52ddb6741af088db8a235664f
SHA256

a9cd9a4b06a19b06652322bfffdced032c3f0a62febdb843710eeb1ac429e575
SHA512

c7fbd0ed516c8f1f491d49f660426d6e8d3ffee8ec28d176152db6a4fe68b796a7db0685de3a026756a8741083904113800c333207ec92835dd0f456f74daa34
SSDEEP

3072:DMTfveRF1qINGfr42jcc0lbxOKtAJtXw34:DMTfveRF1qYcV

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	792	4644	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3196	4644	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4240	4644	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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4644 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE
4644	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4644 wrote to memory of 792	4644	EXCEL.EXE	cmd.exe
PID 4644 wrote to memory of 792	4644	EXCEL.EXE	cmd.exe
PID 4644 wrote to memory of 3196	4644	EXCEL.EXE	cmd.exe
PID 4644 wrote to memory of 3196	4644	EXCEL.EXE	cmd.exe
PID 4644 wrote to memory of 4240	4644	EXCEL.EXE	cmd.exe
PID 4644 wrote to memory of 4240	4644	EXCEL.EXE	cmd.exe
PID 792 wrote to memory of 2744	792	cmd.exe	attrib.exe
PID 792 wrote to memory of 2744	792	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2744 attrib.exe

pid	process
2744	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\a9cd9a4b06a19b06652322bfffdced032c3f0a62febdb843710eeb1ac429e575.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4644

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:792

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2744

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:3196

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:4240

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/792-139-0x0000000000000000-mapping.dmp

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memory/2744-142-0x0000000000000000-mapping.dmp

Download
memory/3196-140-0x0000000000000000-mapping.dmp

Download
memory/4240-141-0x0000000000000000-mapping.dmp

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memory/4644-136-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-137-0x00007FF93F700000-0x00007FF93F710000-memory.dmp

Filesize
64KB

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memory/4644-138-0x00007FF93F700000-0x00007FF93F710000-memory.dmp

Filesize
64KB

Download
memory/4644-132-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-135-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-134-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-133-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-143-0x0000024496402000-0x0000024496404000-memory.dmp

Filesize
8KB

Download
memory/4644-145-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-146-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-147-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download
memory/4644-148-0x00007FF941D50000-0x00007FF941D60000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads