74c90da2a0beb5c7407e7bc61371ab7a131afe309c9faa96e55f30270821c718

General

Target

74c90da2a0beb5c7407e7bc61371ab7a131afe309c9faa96e55f30270821c718.xls
Size

291KB
MD5

03aca037681c971170f26e2724f10627
SHA1

4bc3e42429afc215309d949a1ae6b2a6b0379a2d
SHA256

74c90da2a0beb5c7407e7bc61371ab7a131afe309c9faa96e55f30270821c718
SHA512

bd6c9bce0bf9d6d148973d2d2a63688f68332308f082b7c71f8e554e448082e0767a467a496efca0c417f70197f19806fbe26dec65ae1a61f54aad07aa4a8f9d
SSDEEP

3072:qam8CnOZJRMAu1kEz3ZmEzwFiHMI7WV2SrzQ7ITk9EU0JLXwx5kcW8J:qam8CnOZszhtiA

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	2144	2552	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1424	2552	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4052	2552	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\02175E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2552 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\02175E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2552 wrote to memory of 2144	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 2144	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 1424	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 1424	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 4052	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 4052	2552	EXCEL.EXE	cmd.exe
PID 2144 wrote to memory of 1176	2144	cmd.exe	attrib.exe
PID 2144 wrote to memory of 1176	2144	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1176 attrib.exe

pid	process
1176	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\74c90da2a0beb5c7407e7bc61371ab7a131afe309c9faa96e55f30270821c718.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:2552

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:2144

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1176

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:1424

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:4052

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/1176-143-0x0000000000000000-mapping.dmp

Download
memory/1424-140-0x0000000000000000-mapping.dmp

Download
memory/2144-139-0x0000000000000000-mapping.dmp

Download
memory/2552-136-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-142-0x000002410BC60000-0x000002410BC62000-memory.dmp

Filesize
8KB

Download
memory/2552-137-0x00007FF9E2FD0000-0x00007FF9E2FE0000-memory.dmp

Filesize
64KB

Download
memory/2552-138-0x00007FF9E2FD0000-0x00007FF9E2FE0000-memory.dmp

Filesize
64KB

Download
memory/2552-135-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-134-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-151-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-132-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-133-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-144-0x00000241117E9000-0x00000241117EB000-memory.dmp

Filesize
8KB

Download
memory/2552-145-0x000002410BC60000-0x000002410BC62000-memory.dmp

Filesize
8KB

Download
memory/2552-146-0x00000241117E9000-0x00000241117EB000-memory.dmp

Filesize
8KB

Download
memory/2552-148-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-149-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/2552-150-0x00007FF9E5890000-0x00007FF9E58A0000-memory.dmp

Filesize
64KB

Download
memory/4052-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads