52380fa4188daab8d7e884c71da9e39e80048d7cfe373d0a5e197bd14fb43521

Resubmissions

13-09-2023 20:47

230913-zk1mnahe68 10

13-09-2023 19:55

230913-ym9snsef2y 10

13-09-2023 19:49

230913-yjtbhshc66 3

Analysis

max time kernel
123s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2023 20:47

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General

Target

W-9 Dt 03.22.2023.one
Size

261KB
MD5

1899fbd81deb47c0548728d9d9ee6d6c
SHA1

37b22e29a750d80c05ab412d0883854a2f153009
SHA256

127600f09554e8fd36639ba78bfeefa255f8674e014d3e345732dad82693d804
SHA512

2ca73c383a25c46345363686eaeb984e6b788af0bac3089ab96099ecd7e8280fcf3cdb897f311be7fbe70d78fb042029e5eb8ade24083097c585f01c27f78b23
SSDEEP

3072:xXzeHrBwsHzUfxJ3mY2IsGllOb3HPWaBtOzUfxJ3mY2IsGllOb3HPWaBtuXv:FeHrBwsYXm5ZGa3vRXm5ZGa3ve

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\ONENOTE.EXE is not expected to spawn this process	3884	2948	DW20.EXE	ONENOTE.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:

dwwin.exe

description	ioc	process
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 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dwwin.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dwwin.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dwwin.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

ONENOTE.EXE

pid process

2948 ONENOTE.EXE
2948 ONENOTE.EXE
2948 ONENOTE.EXE
2948 ONENOTE.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

ONENOTE.EXE

pid	process
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE
2948	ONENOTE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

ONENOTE.EXEDW20.EXE

description	pid	process	target process
PID 2948 wrote to memory of 3884	2948	ONENOTE.EXE	DW20.EXE
PID 2948 wrote to memory of 3884	2948	ONENOTE.EXE	DW20.EXE
PID 3884 wrote to memory of 4172	3884	DW20.EXE	dwwin.exe
PID 3884 wrote to memory of 4172	3884	DW20.EXE	dwwin.exe

C:\Program Files\Microsoft Office\Root\Office16\ONENOTE.EXE
"C:\Program Files\Microsoft Office\Root\Office16\ONENOTE.EXE" "C:\Users\Admin\AppData\Local\Temp\W-9 Dt 03.22.2023.one"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2948

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 3516
2⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3884

C:\Windows\system32\dwwin.exe
C:\Windows\system32\dwwin.exe -x -s 3516
3⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:4172

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2948-18-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-3-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-16-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-17-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-7-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/2948-6-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/2948-8-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-5-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-2-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/2948-9-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-10-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-11-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-12-0x00007FFE2FFB0000-0x00007FFE2FFC0000-memory.dmp

Filesize
64KB

Download
memory/2948-15-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-14-0x00007FFE2FFB0000-0x00007FFE2FFC0000-memory.dmp

Filesize
64KB

Download
memory/2948-13-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-4-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/2948-0-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/2948-1-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-19-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-20-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-22-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-23-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-21-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/2948-40-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/3884-28-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/3884-30-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/3884-33-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/3884-26-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/3884-41-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/3884-42-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/3884-43-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/3884-44-0x00007FFE32910000-0x00007FFE32920000-memory.dmp

Filesize
64KB

Download
memory/3884-45-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/3884-47-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download
memory/3884-46-0x00007FFE72890000-0x00007FFE72A85000-memory.dmp

Filesize
2.0MB

Download