25f38e495c62f03e99448b42c223b6cb30052cdbd9aa12ad730345a93fa1bc3a

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 18:23

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Report Analysis Logs

General

Target

25f38e495c62f03e99448b42c223b6cb30052cdbd9aa12ad730345a93fa1bc3a.xls
Size

32KB
MD5

bf06f4164814d518322dc153df11a8b9
SHA1

e545c6b9267df6c8b95bf1d762bbbad7575b5935
SHA256

25f38e495c62f03e99448b42c223b6cb30052cdbd9aa12ad730345a93fa1bc3a
SHA512

5a6f67ac81b9816400fd7996b89af8e37fca15d94161cbb812b7505d9912fa54a3a551eb4508e02f10098a9b809faf08094604444bf1a22e4d870599b6ca9cb5
SSDEEP

768:pzQzc0GLbtV8cLbsQvPe8k1Szm+R2S3cyzghlBAUrR9jzt6C7+4Z:pzQzc0GLbtV8cLbsQvPe8k1SzmGcyzgF

Score

6^/10

Malware Config

Signatures

Process spawned suspicious child process 1 IoCs

This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.

Processes:

DW20.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	4688	5048	DW20.EXE	EXCEL.EXE

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dwwin.exeEXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dwwin.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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dwwin.exe

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXEdwwin.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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dwwin.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

5048 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

EXCEL.EXE

pid process

5048 EXCEL.EXE
5048 EXCEL.EXE

Suspicious use of SetWindowsHookEx 49 IoCs

Processes:

EXCEL.EXE

pid	process
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE
5048	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEDW20.EXE

description	pid	process	target process
PID 5048 wrote to memory of 4688	5048	EXCEL.EXE	DW20.EXE
PID 5048 wrote to memory of 4688	5048	EXCEL.EXE	DW20.EXE
PID 4688 wrote to memory of 3996	4688	DW20.EXE	dwwin.exe
PID 4688 wrote to memory of 3996	4688	DW20.EXE	dwwin.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\25f38e495c62f03e99448b42c223b6cb30052cdbd9aa12ad730345a93fa1bc3a.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5048

C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE
"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 3492
2⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:4688

C:\Windows\system32\dwwin.exe
C:\Windows\system32\dwwin.exe -x -s 3492
3⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:3996

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3996-145-0x0000000000000000-mapping.dmp

Download
memory/4688-139-0x0000000000000000-mapping.dmp

Download
memory/5048-132-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

Filesize
64KB

Download
memory/5048-133-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

Filesize
64KB

Download
memory/5048-134-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

Filesize
64KB

Download
memory/5048-135-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

Filesize
64KB

Download
memory/5048-136-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

Filesize
64KB

Download
memory/5048-137-0x00007FF9AFE90000-0x00007FF9AFEA0000-memory.dmp

Filesize
64KB

Download
memory/5048-138-0x00007FF9AFE90000-0x00007FF9AFEA0000-memory.dmp

Filesize
64KB

Download