3c493ae2296ec62de774a5a24574a0116c43c46c36ec45c0d832e921bea5cf41

General

Target

3c493ae2296ec62de774a5a24574a0116c43c46c36ec45c0d832e921bea5cf41.xls
Size

347KB
MD5

40467ec357ede70005fc85a5121b8a90
SHA1

506ed0c882274d73915c6294f30d5883281a7663
SHA256

3c493ae2296ec62de774a5a24574a0116c43c46c36ec45c0d832e921bea5cf41
SHA512

950e04f250cc67e63ee89c4ac9dd9715c56ef185fbbfcd0429cbe0e37afd6b62b95415f560629bc7c7782ad3131fb37a99168d38c5dcf3439ebcd558cfc35878
SSDEEP

6144:4MNtZNu96ks5Z6hlCWCPfD4gRy5XsRVwNMqX6xUO7s5p2y3+o:4eTNFPqHCnD4QyN1Ss55

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	308	1092	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	224	1092	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4356	1092	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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\B8275E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1092 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\B8275E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE
1092	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1092 wrote to memory of 308	1092	EXCEL.EXE	cmd.exe
PID 1092 wrote to memory of 308	1092	EXCEL.EXE	cmd.exe
PID 1092 wrote to memory of 224	1092	EXCEL.EXE	cmd.exe
PID 1092 wrote to memory of 224	1092	EXCEL.EXE	cmd.exe
PID 1092 wrote to memory of 4356	1092	EXCEL.EXE	cmd.exe
PID 1092 wrote to memory of 4356	1092	EXCEL.EXE	cmd.exe
PID 308 wrote to memory of 2976	308	cmd.exe	attrib.exe
PID 308 wrote to memory of 2976	308	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2976 attrib.exe

pid	process
2976	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\3c493ae2296ec62de774a5a24574a0116c43c46c36ec45c0d832e921bea5cf41.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1092

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:308

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2976

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:224

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:4356

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/224-140-0x0000000000000000-mapping.dmp

Download
memory/308-139-0x0000000000000000-mapping.dmp

Download
memory/1092-146-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-133-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-136-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-137-0x00007FFB83510000-0x00007FFB83520000-memory.dmp

Filesize
64KB

Download
memory/1092-138-0x00007FFB83510000-0x00007FFB83520000-memory.dmp

Filesize
64KB

Download
memory/1092-134-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-145-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-135-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-148-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-143-0x0000028D62728000-0x0000028D6272A000-memory.dmp

Filesize
8KB

Download
memory/1092-132-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/1092-147-0x00007FFB85E70000-0x00007FFB85E80000-memory.dmp

Filesize
64KB

Download
memory/2976-142-0x0000000000000000-mapping.dmp

Download
memory/4356-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads