7eb33aef2c2db992c4ddcd8e3ce531da3c6216b22a7800ff302ff72aaf538b75

General

Target

7eb33aef2c2db992c4ddcd8e3ce531da3c6216b22a7800ff302ff72aaf538b75.xls
Size

234KB
MD5

aacff3fefa41ad1200de0c7f9d737459
SHA1

1aa4f8b67ef4d4b6e88912f99b55598b732f7354
SHA256

7eb33aef2c2db992c4ddcd8e3ce531da3c6216b22a7800ff302ff72aaf538b75
SHA512

c712a98169cb678d7fcadd9ef83bc67d82ddfdaba31fe48705a273e9442957490434d32d10a03d94505b686aa5dc57250d88633ced63a404b9f7693ac428cf47
SSDEEP

6144:m5EFbPu1iIFb3SAYBO2ACy6VB6SHFOovWy4pdqb/t9G:epdqb/L

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	4540	1408	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1012	1408	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2388	1408	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 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

1408 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE
1408	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1408 wrote to memory of 4196	1408	EXCEL.EXE	splwow64.exe
PID 1408 wrote to memory of 4196	1408	EXCEL.EXE	splwow64.exe
PID 1408 wrote to memory of 4540	1408	EXCEL.EXE	cmd.exe
PID 1408 wrote to memory of 4540	1408	EXCEL.EXE	cmd.exe
PID 1408 wrote to memory of 1012	1408	EXCEL.EXE	cmd.exe
PID 1408 wrote to memory of 1012	1408	EXCEL.EXE	cmd.exe
PID 1408 wrote to memory of 2388	1408	EXCEL.EXE	cmd.exe
PID 1408 wrote to memory of 2388	1408	EXCEL.EXE	cmd.exe
PID 4540 wrote to memory of 3132	4540	cmd.exe	attrib.exe
PID 4540 wrote to memory of 3132	4540	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3132 attrib.exe

pid	process
3132	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\7eb33aef2c2db992c4ddcd8e3ce531da3c6216b22a7800ff302ff72aaf538b75.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1408

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:4196

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:4540

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3132

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:1012

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:2388

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1856

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/1012-143-0x0000000000000000-mapping.dmp

Download
memory/1408-136-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-148-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-135-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-132-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-137-0x00007FFF15A20000-0x00007FFF15A30000-memory.dmp

Filesize
64KB

Download
memory/1408-138-0x00007FFF15A20000-0x00007FFF15A30000-memory.dmp

Filesize
64KB

Download
memory/1408-134-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-150-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-149-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-133-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/1408-147-0x00007FFF17CF0000-0x00007FFF17D00000-memory.dmp

Filesize
64KB

Download
memory/2388-144-0x0000000000000000-mapping.dmp

Download
memory/3132-145-0x0000000000000000-mapping.dmp

Download
memory/4196-139-0x0000000000000000-mapping.dmp

Download
memory/4540-142-0x0000000000000000-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