b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3

General

Target

b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3.xls
Size

144KB
MD5

805e3b455a5933a04e810d7fb81c2530
SHA1

3088e8dfd2b0ab80615057f9be99f63d0654b430
SHA256

b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3
SHA512

f7d5c14d1f524bebeaafd8ffdae6d29fa06cfea722c6db8f078138e92207e70a062a0dda782878777dfee97b6b6dee82e7a28b4b326c71f568c9c6cd6bd2d333
SSDEEP

3072:iWOqqRsWFPf/M6iWVbrzQ7I91kpukZ1YJtXwcD:1On1kG

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	4368	2364	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4128	2364	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4348	2364	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

2364 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2364 wrote to memory of 4368	2364	EXCEL.EXE	cmd.exe
PID 2364 wrote to memory of 4368	2364	EXCEL.EXE	cmd.exe
PID 2364 wrote to memory of 4128	2364	EXCEL.EXE	cmd.exe
PID 2364 wrote to memory of 4128	2364	EXCEL.EXE	cmd.exe
PID 2364 wrote to memory of 4348	2364	EXCEL.EXE	cmd.exe
PID 2364 wrote to memory of 4348	2364	EXCEL.EXE	cmd.exe
PID 4368 wrote to memory of 388	4368	cmd.exe	attrib.exe
PID 4368 wrote to memory of 388	4368	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

388 attrib.exe

pid	process
388	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\b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2364

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:4368

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:388

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:4128

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:4348

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/388-142-0x0000000000000000-mapping.dmp

Download
memory/2364-138-0x00007FFCEC080000-0x00007FFCEC090000-memory.dmp

Filesize
64KB

Download
memory/2364-146-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-135-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-136-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-137-0x00007FFCEC080000-0x00007FFCEC090000-memory.dmp

Filesize
64KB

Download
memory/2364-132-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-147-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-144-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-145-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-133-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/2364-134-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/4128-140-0x0000000000000000-mapping.dmp

Download
memory/4348-141-0x0000000000000000-mapping.dmp

Download
memory/4368-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads