342a4030fe6fa8f8d64c2de0a25f4162e241802a283475d1c6758dcb3eede82d

Analysis

max time kernel
170s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2023, 20:43

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General

Target

NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe
Size

206KB
MD5

d1976932d4b0b006ba9e89ccf9de0ed0
SHA1

f87183c597a017076f9215d03a6ee68aa7539b4e
SHA256

342a4030fe6fa8f8d64c2de0a25f4162e241802a283475d1c6758dcb3eede82d
SHA512

68656f747ebee2aaa9d6b98fcf34ca8633f08291c4a7d65664b9db41232aaf879bc440a5d054cca95de3f1baea13b3a3ca295c10ff44401167ad3a86b23e27e2
SSDEEP

3072:NvEfVUzSLhIVbV6i5LirrlZrHyrUHUckoMQ2RN6unFAU:NvEN2U+T6i5LirrllHy4HUcMQY6NU

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	svchost.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Modifies Installed Components in the registry 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	explorer.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	explorer.exe

Executes dropped EXE 4 IoCs

pid	Process
1496	explorer.exe
3064	spoolsv.exe
5048	svchost.exe
3452	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	svchost.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\system\explorer.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	svchost.exe
File opened for modification	C:\Windows\system\udsys.exe	explorer.exe
File opened for modification	\??\c:\windows\system\explorer.exe	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe
File opened for modification	\??\c:\windows\system\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	spoolsv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3304	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe
3304	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe
1496	explorer.exe
1496	explorer.exe
5048	svchost.exe
5048	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1496	explorer.exe
5048	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3304	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe
3304	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe
1496	explorer.exe
1496	explorer.exe
3064	spoolsv.exe
3064	spoolsv.exe
5048	svchost.exe
5048	svchost.exe
3452	spoolsv.exe
3452	spoolsv.exe
1496	explorer.exe
1496	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 1496	3304	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe	90
PID 3304 wrote to memory of 1496	3304	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe	90
PID 3304 wrote to memory of 1496	3304	NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe	90
PID 1496 wrote to memory of 3064	1496	explorer.exe	91
PID 1496 wrote to memory of 3064	1496	explorer.exe	91
PID 1496 wrote to memory of 3064	1496	explorer.exe	91
PID 3064 wrote to memory of 5048	3064	spoolsv.exe	92
PID 3064 wrote to memory of 5048	3064	spoolsv.exe	92
PID 3064 wrote to memory of 5048	3064	spoolsv.exe	92
PID 5048 wrote to memory of 3452	5048	svchost.exe	93
PID 5048 wrote to memory of 3452	5048	svchost.exe	93
PID 5048 wrote to memory of 3452	5048	svchost.exe	93
PID 5048 wrote to memory of 4708	5048	svchost.exe	94
PID 5048 wrote to memory of 4708	5048	svchost.exe	94
PID 5048 wrote to memory of 4708	5048	svchost.exe	94
PID 5048 wrote to memory of 2272	5048	svchost.exe	104
PID 5048 wrote to memory of 2272	5048	svchost.exe	104
PID 5048 wrote to memory of 2272	5048	svchost.exe	104
PID 5048 wrote to memory of 4912	5048	svchost.exe	114
PID 5048 wrote to memory of 4912	5048	svchost.exe	114
PID 5048 wrote to memory of 4912	5048	svchost.exe	114

C:\Users\Admin\AppData\Local\Temp\NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.d1976932d4b0b006ba9e89ccf9de0ed0.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3304
- \??\c:\windows\system\explorer.exe
  c:\windows\system\explorer.exe
  2⤵
  - Modifies WinLogon for persistence
  - Modifies visiblity of hidden/system files in Explorer
  - Modifies Installed Components in the registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1496
- - \??\c:\windows\system\spoolsv.exe
    c:\windows\system\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3064
  - - \??\c:\windows\system\svchost.exe
      c:\windows\system\svchost.exe
      4⤵
      Modifies WinLogon for persistence
      Modifies visiblity of hidden/system files in Explorer
      Modifies Installed Components in the registry
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:5048
    - - \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:3452
    - - C:\Windows\SysWOW64\at.exe
        
        at 05:55 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:4708
    - - C:\Windows\SysWOW64\at.exe
        
        at 05:56 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:2272
    - - C:\Windows\SysWOW64\at.exe
        
        at 05:57 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:4912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\mrsys.exe

Filesize
206KB

MD5
66e654d182fd11727210444d15f6b778

SHA1
ba78eca8f9f82f7f82001ce014086e11c6525960

SHA256
fbbfac7ee21cf5e93d50b3146a44198cf7d8c5ae5bd47e4e60837aa9ca18468f

SHA512
5ee1955a46d484389611f70b9d2bdbea63d952bfb8efc3256a706857199b4855970611064da0b3f0519be8c70ae80f6f1f412fba743cb7500b396cf68e3d3916

Download Submit
C:\Windows\System\explorer.exe

Filesize
207KB

MD5
3ce5580c65ce9a2517b8ee0da2082cce

SHA1
3a5b0b5b1fc4d451c7b8be4d18016f5181360fb5

SHA256
e627b321d62f94b86bab29a6fac60755c9ce3751081f86944c62359dda7b3d3a

SHA512
e8dbd02821dfb92f2588e052d091c5c5896ca5ea79e10ddd9e6a2df7593c5ddef09c725c551fa60e8c10c157840a5abd2d773728d67cf8cb6f09ad57a3fb8ba1

Download Submit
C:\Windows\System\spoolsv.exe

Filesize
206KB

MD5
8bacbf7e82dc04656b5b5afcec6f91f0

SHA1
dc72e2328442e4d66836bcf2171e51ad5fe9dfca

SHA256
5c680ff60ba071ea225b6e69d2d6082017a206fed499866e6dc9f646e5f2faca

SHA512
28ac9a704bcaf75bda535e3865958dcf1768155f3754901b2816c2676adb457ebef90198fd790f052463d16c3aa4ca27d41d4ade5854abe28bc72641701431d0

Download Submit
C:\Windows\System\spoolsv.exe

Filesize
206KB

MD5
8bacbf7e82dc04656b5b5afcec6f91f0

SHA1
dc72e2328442e4d66836bcf2171e51ad5fe9dfca

SHA256
5c680ff60ba071ea225b6e69d2d6082017a206fed499866e6dc9f646e5f2faca

SHA512
28ac9a704bcaf75bda535e3865958dcf1768155f3754901b2816c2676adb457ebef90198fd790f052463d16c3aa4ca27d41d4ade5854abe28bc72641701431d0

Download Submit
C:\Windows\System\spoolsv.exe

Filesize
206KB

MD5
8bacbf7e82dc04656b5b5afcec6f91f0

SHA1
dc72e2328442e4d66836bcf2171e51ad5fe9dfca

SHA256
5c680ff60ba071ea225b6e69d2d6082017a206fed499866e6dc9f646e5f2faca

SHA512
28ac9a704bcaf75bda535e3865958dcf1768155f3754901b2816c2676adb457ebef90198fd790f052463d16c3aa4ca27d41d4ade5854abe28bc72641701431d0

Download Submit
C:\Windows\System\svchost.exe

Filesize
206KB

MD5
7354be6aed715928252b528941ba65d9

SHA1
ef08cf62b50e5fc1e0c2e8b1cd7de1502a4f2f7a

SHA256
923a0436e723db5847c0cd0f15dd7484dfd8acbd78c034fc6387b3a9a454c979

SHA512
1ce5359b5381bce1da9e031870039b037ab24b7be143411421e6ba8a8e844a27df5de8ea56c5c44b9507d87d75de22c6b204917846b354bd115dee1f8f353344

Download Submit
\??\c:\windows\system\explorer.exe

Filesize
207KB

MD5
3ce5580c65ce9a2517b8ee0da2082cce

SHA1
3a5b0b5b1fc4d451c7b8be4d18016f5181360fb5

SHA256
e627b321d62f94b86bab29a6fac60755c9ce3751081f86944c62359dda7b3d3a

SHA512
e8dbd02821dfb92f2588e052d091c5c5896ca5ea79e10ddd9e6a2df7593c5ddef09c725c551fa60e8c10c157840a5abd2d773728d67cf8cb6f09ad57a3fb8ba1

Download Submit
\??\c:\windows\system\spoolsv.exe

Filesize
206KB

MD5
8bacbf7e82dc04656b5b5afcec6f91f0

SHA1
dc72e2328442e4d66836bcf2171e51ad5fe9dfca

SHA256
5c680ff60ba071ea225b6e69d2d6082017a206fed499866e6dc9f646e5f2faca

SHA512
28ac9a704bcaf75bda535e3865958dcf1768155f3754901b2816c2676adb457ebef90198fd790f052463d16c3aa4ca27d41d4ade5854abe28bc72641701431d0

Download Submit
\??\c:\windows\system\svchost.exe

Filesize
206KB

MD5
7354be6aed715928252b528941ba65d9

SHA1
ef08cf62b50e5fc1e0c2e8b1cd7de1502a4f2f7a

SHA256
923a0436e723db5847c0cd0f15dd7484dfd8acbd78c034fc6387b3a9a454c979

SHA512
1ce5359b5381bce1da9e031870039b037ab24b7be143411421e6ba8a8e844a27df5de8ea56c5c44b9507d87d75de22c6b204917846b354bd115dee1f8f353344

Download Submit
memory/1496-38-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3064-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3304-0-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3304-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3452-32-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/5048-39-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download