75cf364baa43c9be2a20f5ac9bb9f45027a90d3658e438f92102107446556206

General

Target

75cf364baa43c9be2a20f5ac9bb9f45027a90d3658e438f92102107446556206.xls
Size

92KB
MD5

29d6bbad5fde307cd3e573e4051942f4
SHA1

9368a3b82c7b4ca8f17cb50d48f32edc5bf61683
SHA256

75cf364baa43c9be2a20f5ac9bb9f45027a90d3658e438f92102107446556206
SHA512

d051571106b994881a4df4a7f339f22a929cc470311dd6c144299926ec49fbff6f316be568463806df822af18c448cf10b5796863217611a9b5e16300117539f
SSDEEP

1536:f666O0/KzoFEWVbrzQ7fxPtGoKTkR623vq1Iq9TJtXwbwx:rZWVbrzQ7f5ZKTk9yeqxJtXwc

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	3628	2284	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	556	2284	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	956	2284	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\33275E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2284 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\33275E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE
2284	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2284 wrote to memory of 3628	2284	EXCEL.EXE	cmd.exe
PID 2284 wrote to memory of 3628	2284	EXCEL.EXE	cmd.exe
PID 2284 wrote to memory of 556	2284	EXCEL.EXE	cmd.exe
PID 2284 wrote to memory of 556	2284	EXCEL.EXE	cmd.exe
PID 2284 wrote to memory of 956	2284	EXCEL.EXE	cmd.exe
PID 2284 wrote to memory of 956	2284	EXCEL.EXE	cmd.exe
PID 3628 wrote to memory of 1268	3628	cmd.exe	attrib.exe
PID 3628 wrote to memory of 1268	3628	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1268 attrib.exe

pid	process
1268	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\75cf364baa43c9be2a20f5ac9bb9f45027a90d3658e438f92102107446556206.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:2284

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:3628

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1268

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:556

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:956

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/556-140-0x0000000000000000-mapping.dmp

Download
memory/956-141-0x0000000000000000-mapping.dmp

Download
memory/1268-142-0x0000000000000000-mapping.dmp

Download
memory/2284-135-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-136-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-137-0x00007FF95DB80000-0x00007FF95DB90000-memory.dmp

Filesize
64KB

Download
memory/2284-138-0x00007FF95DB80000-0x00007FF95DB90000-memory.dmp

Filesize
64KB

Download
memory/2284-132-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-134-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-133-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-145-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-144-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-146-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/2284-147-0x00007FF960090000-0x00007FF9600A0000-memory.dmp

Filesize
64KB

Download
memory/3628-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads