61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5

General

Target

61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5.xls
Size

113KB
MD5

99eff638547a80794a5ab5434b35c574
SHA1

7d3f7e9713b0c3a9cb6c940d9c83a38905555435
SHA256

61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5
SHA512

21e6e08f26349f2e062f8e47cb6319792d9d7f0706faccfc4ebc16fdf36783d939ee0e8a37e0441fd50323f5f9b841f19c52f0cd2ce9bbff78ade375f3a0a18d
SSDEEP

1536:cOOKgOTrSD65UgD59FsMr8gf/OsUlCk15sqI7Pfq/XPWVbrz2rc7ITkiD2lqk+ID:a1cfwWVbrz2rc7ITkD9+IPaZ5kmxab

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	5100	4792	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1640	4792	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1788	4792	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

4792 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE
4792	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4792 wrote to memory of 5100	4792	EXCEL.EXE	cmd.exe
PID 4792 wrote to memory of 5100	4792	EXCEL.EXE	cmd.exe
PID 4792 wrote to memory of 1788	4792	EXCEL.EXE	cmd.exe
PID 4792 wrote to memory of 1788	4792	EXCEL.EXE	cmd.exe
PID 4792 wrote to memory of 1640	4792	EXCEL.EXE	cmd.exe
PID 4792 wrote to memory of 1640	4792	EXCEL.EXE	cmd.exe
PID 5100 wrote to memory of 4744	5100	cmd.exe	attrib.exe
PID 5100 wrote to memory of 4744	5100	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4744 attrib.exe

pid	process
4744	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\61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4792

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:5100

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4744

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:1640

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:1788

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/1640-141-0x0000000000000000-mapping.dmp

Download
memory/1788-140-0x0000000000000000-mapping.dmp

Download
memory/4744-142-0x0000000000000000-mapping.dmp

Download
memory/4792-136-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-146-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-137-0x00007FF80C140000-0x00007FF80C150000-memory.dmp

Filesize
64KB

Download
memory/4792-138-0x00007FF80C140000-0x00007FF80C150000-memory.dmp

Filesize
64KB

Download
memory/4792-149-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-135-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-134-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-133-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-143-0x000002120AF03000-0x000002120AF05000-memory.dmp

Filesize
8KB

Download
memory/4792-144-0x000002120AF03000-0x000002120AF05000-memory.dmp

Filesize
8KB

Download
memory/4792-132-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-147-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/4792-148-0x00007FF80E8D0000-0x00007FF80E8E0000-memory.dmp

Filesize
64KB

Download
memory/5100-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads