b455fab0ac5ed297c9a311ae07969c0b2fc6f087feb20705650b032f8deb8019

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2024 22:37

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General

Target

25d29c06fa97a67ef41c5626dfcb6ba0.xls
Size

46KB
MD5

25d29c06fa97a67ef41c5626dfcb6ba0
SHA1

5b712991fd839d7a66b2b5ba368736882c9e8528
SHA256

b455fab0ac5ed297c9a311ae07969c0b2fc6f087feb20705650b032f8deb8019
SHA512

5eed31d45bce5562120cc3ecc3be5e5b6310767acbe604530de2810cb1cbc90470d7b39ca659dd9c8fbe1423e96ab2aadd0ad36f577519a1e87a2a2996c74a47
SSDEEP

768:lnNhG28vYmP+3xEtjPOtioVjDGUU1qfDlaGGx+chYIxWcQIBUTlV9OfjYAcwSRYp:tNhG28v5exEtjPOtioVjDGUU1qfDlaGG

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1388	1588	DW20.EXE	87

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

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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dwwin.exe
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

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

pid	Process
1588	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1588	EXCEL.EXE
1588	EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE
1588	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 1388	1588	EXCEL.EXE	107
PID 1588 wrote to memory of 1388	1588	EXCEL.EXE	107
PID 1388 wrote to memory of 4080	1388	DW20.EXE	108
PID 1388 wrote to memory of 4080	1388	DW20.EXE	108

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\25d29c06fa97a67ef41c5626dfcb6ba0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1588
- 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 4960
  2⤵
  - Process spawned suspicious child process
  - Suspicious use of WriteProcessMemory
  PID:1388
- - C:\Windows\system32\dwwin.exe
    C:\Windows\system32\dwwin.exe -x -s 4960
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:4080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1388-71-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1388-84-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1388-85-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1388-82-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1388-83-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1388-79-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1388-81-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1388-80-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1388-72-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-22-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-42-0x000001951AC90000-0x000001951BC60000-memory.dmp

Filesize
15.8MB

Download
memory/1588-11-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-12-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-14-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-15-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-16-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-17-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-13-0x00007FFD80060000-0x00007FFD80070000-memory.dmp

Filesize
64KB

Download
memory/1588-19-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-18-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-20-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-21-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-0-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1588-23-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-32-0x0000019516C90000-0x0000019517490000-memory.dmp

Filesize
8.0MB

Download
memory/1588-36-0x0000019516C90000-0x0000019517490000-memory.dmp

Filesize
8.0MB

Download
memory/1588-40-0x000001951AC90000-0x000001951BC60000-memory.dmp

Filesize
15.8MB

Download
memory/1588-41-0x000001951AC90000-0x000001951BC60000-memory.dmp

Filesize
15.8MB

Download
memory/1588-10-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-43-0x000001951AC90000-0x000001951BC60000-memory.dmp

Filesize
15.8MB

Download
memory/1588-50-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-51-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-52-0x0000019516C90000-0x0000019517490000-memory.dmp

Filesize
8.0MB

Download
memory/1588-53-0x0000019516C90000-0x0000019517490000-memory.dmp

Filesize
8.0MB

Download
memory/1588-54-0x000001951AC90000-0x000001951BC60000-memory.dmp

Filesize
15.8MB

Download
memory/1588-64-0x0000019516C90000-0x0000019517490000-memory.dmp

Filesize
8.0MB

Download
memory/1588-65-0x000001951AC90000-0x000001951BC60000-memory.dmp

Filesize
15.8MB

Download
memory/1588-9-0x00007FFD80060000-0x00007FFD80070000-memory.dmp

Filesize
64KB

Download
memory/1588-8-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-7-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-6-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-4-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1588-5-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download
memory/1588-3-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1588-2-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1588-1-0x00007FFD82170000-0x00007FFD82180000-memory.dmp

Filesize
64KB

Download
memory/1588-86-0x00007FFDC20F0000-0x00007FFDC22E5000-memory.dmp

Filesize
2.0MB

Download