74b4c5b16139fef3b7eb387ec225a2f6b4ae2e11b7f839a2ec2bce3d5f982590

General

Target

74b4c5b16139fef3b7eb387ec225a2f6b4ae2e11b7f839a2ec2bce3d5f982590.xls
Size

90KB
MD5

014726c0c741a04aa2dc75451e9d5921
SHA1

593aee34382c014c7325d22630f2c6708324145f
SHA256

74b4c5b16139fef3b7eb387ec225a2f6b4ae2e11b7f839a2ec2bce3d5f982590
SHA512

450afec7e6eaf4f28ac2916fe32cb031ebaa4ef0d7f7746e21be84d9a73191a5fb6478ff5de3a7de1151ff79e9ff661b20c75b033291f147d1a4240a0d3c4a18
SSDEEP

1536:DkJCDfuEt2BI3Q2e2sFbvq58pE+2jcc0lbxOqTgZlIhY7nJdJoOd7PJtXwuQj:DvDfuEt2BI3Q2e2sFbvq5U2jcc0lbxOO

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	1552	4284	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1380	4284	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2228	4284	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\28295E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4284 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\28295E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid	process
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE
4284	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4284 wrote to memory of 1552	4284	EXCEL.EXE	cmd.exe
PID 4284 wrote to memory of 1552	4284	EXCEL.EXE	cmd.exe
PID 4284 wrote to memory of 1380	4284	EXCEL.EXE	cmd.exe
PID 4284 wrote to memory of 1380	4284	EXCEL.EXE	cmd.exe
PID 4284 wrote to memory of 2228	4284	EXCEL.EXE	cmd.exe
PID 4284 wrote to memory of 2228	4284	EXCEL.EXE	cmd.exe
PID 1552 wrote to memory of 3168	1552	cmd.exe	attrib.exe
PID 1552 wrote to memory of 3168	1552	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3168 attrib.exe

pid	process
3168	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\74b4c5b16139fef3b7eb387ec225a2f6b4ae2e11b7f839a2ec2bce3d5f982590.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:4284

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:1552

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3168

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:1380

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:2228

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

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Downloads

memory/1380-140-0x0000000000000000-mapping.dmp

Download
memory/1552-139-0x0000000000000000-mapping.dmp

Download
memory/2228-141-0x0000000000000000-mapping.dmp

Download
memory/3168-142-0x0000000000000000-mapping.dmp

Download
memory/4284-132-0x00007FF9A5870000-0x00007FF9A5880000-memory.dmp

Filesize
64KB

Download
memory/4284-133-0x00007FF9A5870000-0x00007FF9A5880000-memory.dmp

Filesize
64KB

Download
memory/4284-134-0x00007FF9A5870000-0x00007FF9A5880000-memory.dmp

Filesize
64KB

Download
memory/4284-135-0x00007FF9A5870000-0x00007FF9A5880000-memory.dmp

Filesize
64KB

Download
memory/4284-136-0x00007FF9A5870000-0x00007FF9A5880000-memory.dmp

Filesize
64KB

Download
memory/4284-137-0x00007FF9A32E0000-0x00007FF9A32F0000-memory.dmp

Filesize
64KB

Download
memory/4284-138-0x00007FF9A32E0000-0x00007FF9A32F0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads