6824f93ab23a4294dd884992fe1c2e4ca1f8b9ef90aa1a11cd94abdca1758382

Analysis

max time kernel
153s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
14-10-2023 08:24

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General

Target

NEAS.fce339391dd4f449342731311e6b6f80.exe
Size

206KB
MD5

fce339391dd4f449342731311e6b6f80
SHA1

89a9f0594b8fd733b482e7082c4d1b88b78b3204
SHA256

6824f93ab23a4294dd884992fe1c2e4ca1f8b9ef90aa1a11cd94abdca1758382
SHA512

02fdb1429ebccf54eb784d9dee31f118ee858cbf2ef02801b5ad9de312e2c470b111894181e7851a3fc805da9fcf219a0b6ebd7ec273bb08c9997c55dd6e6149
SSDEEP

3072:evEfVUzSLhIVbV6i5LirrlZrHyrUHUckoMQ2RN6unM9:evEN2U+T6i5LirrllHy4HUcMQY6v

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"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	explorer.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-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.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
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
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

Executes dropped EXE 4 IoCs

pid	Process
4396	explorer.exe
528	spoolsv.exe
4228	svchost.exe
2352	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\Svchost = "c:\\windows\\system\\svchost.exe RO"	svchost.exe
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

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\udsys.exe	explorer.exe
File opened for modification	\??\c:\windows\system\explorer.exe	NEAS.fce339391dd4f449342731311e6b6f80.exe
File opened for modification	\??\c:\windows\system\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	spoolsv.exe
File opened for modification	\??\c:\windows\system\explorer.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	svchost.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
3088	NEAS.fce339391dd4f449342731311e6b6f80.exe
3088	NEAS.fce339391dd4f449342731311e6b6f80.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe
4396	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4396	explorer.exe
4228	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3088	NEAS.fce339391dd4f449342731311e6b6f80.exe
3088	NEAS.fce339391dd4f449342731311e6b6f80.exe
4396	explorer.exe
4396	explorer.exe
528	spoolsv.exe
528	spoolsv.exe
4228	svchost.exe
4228	svchost.exe
2352	spoolsv.exe
2352	spoolsv.exe
4396	explorer.exe
4396	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 4396	3088	NEAS.fce339391dd4f449342731311e6b6f80.exe	87
PID 3088 wrote to memory of 4396	3088	NEAS.fce339391dd4f449342731311e6b6f80.exe	87
PID 3088 wrote to memory of 4396	3088	NEAS.fce339391dd4f449342731311e6b6f80.exe	87
PID 4396 wrote to memory of 528	4396	explorer.exe	88
PID 4396 wrote to memory of 528	4396	explorer.exe	88
PID 4396 wrote to memory of 528	4396	explorer.exe	88
PID 528 wrote to memory of 4228	528	spoolsv.exe	89
PID 528 wrote to memory of 4228	528	spoolsv.exe	89
PID 528 wrote to memory of 4228	528	spoolsv.exe	89
PID 4228 wrote to memory of 2352	4228	svchost.exe	90
PID 4228 wrote to memory of 2352	4228	svchost.exe	90
PID 4228 wrote to memory of 2352	4228	svchost.exe	90
PID 4228 wrote to memory of 4764	4228	svchost.exe	91
PID 4228 wrote to memory of 4764	4228	svchost.exe	91
PID 4228 wrote to memory of 4764	4228	svchost.exe	91
PID 4228 wrote to memory of 3484	4228	svchost.exe	106
PID 4228 wrote to memory of 3484	4228	svchost.exe	106
PID 4228 wrote to memory of 3484	4228	svchost.exe	106
PID 4228 wrote to memory of 4940	4228	svchost.exe	111
PID 4228 wrote to memory of 4940	4228	svchost.exe	111
PID 4228 wrote to memory of 4940	4228	svchost.exe	111

C:\Users\Admin\AppData\Local\Temp\NEAS.fce339391dd4f449342731311e6b6f80.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.fce339391dd4f449342731311e6b6f80.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3088
- \??\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:4396
- - \??\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:528
  - - \??\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: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4228
    - - \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:2352
    - - C:\Windows\SysWOW64\at.exe
        
        at 21:57 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:4764
    - - C:\Windows\SysWOW64\at.exe
        
        at 07:43 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:3484
    - - C:\Windows\SysWOW64\at.exe
        
        at 07:44 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:4940

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
127bc411e2a30ffdd6c31e96634f408e

SHA1
43f7bfa8498e2e418250c7d302f6d7ef4eed0183

SHA256
b4d8cf1ffc28bd1512fdf68f17e56904e0abb4c04a3857f9bac59b231e1b39c2

SHA512
a6673c884766fe6b5f2ee2a6bb7bbce1857c0e8549d7231d6c0612d34e980a2fc2a1b1e190f6a56f98bcb2ebb19943f6f4480ef9422cdfc7c14782146b90cb04

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

Filesize
206KB

MD5
fb4a3b1b0e67b3b4149d90e753e17176

SHA1
46f25525aaef1f1e57088b3b68934f9b269226e5

SHA256
5da5551c84311788b7748da46699e0de80b7167a87726a712a983e0f207c3228

SHA512
bebeba1abaf5e408b494547a5b3c0aca10ba3b18d5b8faa883d8e654eaaf78d2cf018d9b445f0aaf94117d0603d8a883a526be61be7fcf9b6f12079810d92500

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

Filesize
206KB

MD5
f908e2aab98915eb3b4fcc079b95f2be

SHA1
0e3a9f897aa65127956bab40786ff1a368fec590

SHA256
ea4a263f52699e3a93ba376e9b4d9cd2ac30dffdb4bc4354cf3af834b52fbd01

SHA512
b2174784cdbe4d3b24bd49adaa76ceebf1024cb1c1d0e0fcadca82067b82333777ffc951a3e4197a174000104594a25c340ee9b15113d7e46558576b4cf57846

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

Filesize
206KB

MD5
f908e2aab98915eb3b4fcc079b95f2be

SHA1
0e3a9f897aa65127956bab40786ff1a368fec590

SHA256
ea4a263f52699e3a93ba376e9b4d9cd2ac30dffdb4bc4354cf3af834b52fbd01

SHA512
b2174784cdbe4d3b24bd49adaa76ceebf1024cb1c1d0e0fcadca82067b82333777ffc951a3e4197a174000104594a25c340ee9b15113d7e46558576b4cf57846

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

Filesize
206KB

MD5
f908e2aab98915eb3b4fcc079b95f2be

SHA1
0e3a9f897aa65127956bab40786ff1a368fec590

SHA256
ea4a263f52699e3a93ba376e9b4d9cd2ac30dffdb4bc4354cf3af834b52fbd01

SHA512
b2174784cdbe4d3b24bd49adaa76ceebf1024cb1c1d0e0fcadca82067b82333777ffc951a3e4197a174000104594a25c340ee9b15113d7e46558576b4cf57846

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

Filesize
206KB

MD5
0345476b56eab04b0ee80dc070949cd0

SHA1
efdcd868350b23dabda9758b860178f0ae81c08a

SHA256
6599caaa17bd11bfa8f6859abbd0a18987994f214086a15d21c0b2a3caba816d

SHA512
92763f391d4d5b840f89241ce9960c9d9e0026a08243ccb106ecf1a7fe6630da3e0b74f2724c3d5286c343b8646a6dfabce8342e4641c6a10dd0cadbd8c8d208

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

Filesize
206KB

MD5
fb4a3b1b0e67b3b4149d90e753e17176

SHA1
46f25525aaef1f1e57088b3b68934f9b269226e5

SHA256
5da5551c84311788b7748da46699e0de80b7167a87726a712a983e0f207c3228

SHA512
bebeba1abaf5e408b494547a5b3c0aca10ba3b18d5b8faa883d8e654eaaf78d2cf018d9b445f0aaf94117d0603d8a883a526be61be7fcf9b6f12079810d92500

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

Filesize
206KB

MD5
f908e2aab98915eb3b4fcc079b95f2be

SHA1
0e3a9f897aa65127956bab40786ff1a368fec590

SHA256
ea4a263f52699e3a93ba376e9b4d9cd2ac30dffdb4bc4354cf3af834b52fbd01

SHA512
b2174784cdbe4d3b24bd49adaa76ceebf1024cb1c1d0e0fcadca82067b82333777ffc951a3e4197a174000104594a25c340ee9b15113d7e46558576b4cf57846

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

Filesize
206KB

MD5
0345476b56eab04b0ee80dc070949cd0

SHA1
efdcd868350b23dabda9758b860178f0ae81c08a

SHA256
6599caaa17bd11bfa8f6859abbd0a18987994f214086a15d21c0b2a3caba816d

SHA512
92763f391d4d5b840f89241ce9960c9d9e0026a08243ccb106ecf1a7fe6630da3e0b74f2724c3d5286c343b8646a6dfabce8342e4641c6a10dd0cadbd8c8d208

Download Submit
memory/528-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2352-32-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3088-0-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3088-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4228-39-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4396-38-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download