04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 18:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe
Size

66KB
MD5

3e2428db2164bb359d7c6f4d6245bd85
SHA1

5f0f3bfdd00b08e98011597e179b9f58fd510b81
SHA256

04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d
SHA512

0a88545e7755eac6be3ef832b2bd6f76c12e9a97e01bd57729618fb0ce519c9d163b1c277d8809dbfc4dbb46dde433b61dcc0992c5a887e77539a18adbe73c13
SSDEEP

1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXih:IeklMMYJhqezw/pXzH9ih

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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\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
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
4668	explorer.exe
5088	spoolsv.exe
3504	svchost.exe
3780	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\svchost.exe	svchost.exe
File opened for modification	C:\Windows\system\udsys.exe	explorer.exe
File opened for modification	\??\c:\windows\system\explorer.exe	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.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

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
1320	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe
1320	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe
4668	explorer.exe
4668	explorer.exe
4668	explorer.exe
4668	explorer.exe
4668	explorer.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
3504	svchost.exe
4668	explorer.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe
3504	svchost.exe
3504	svchost.exe
4668	explorer.exe
4668	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4668	explorer.exe
3504	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1320	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe
1320	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe
4668	explorer.exe
4668	explorer.exe
5088	spoolsv.exe
5088	spoolsv.exe
3504	svchost.exe
3504	svchost.exe
3780	spoolsv.exe
3780	spoolsv.exe
4668	explorer.exe
4668	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 4668	1320	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe	80
PID 1320 wrote to memory of 4668	1320	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe	80
PID 1320 wrote to memory of 4668	1320	04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe	80
PID 4668 wrote to memory of 5088	4668	explorer.exe	81
PID 4668 wrote to memory of 5088	4668	explorer.exe	81
PID 4668 wrote to memory of 5088	4668	explorer.exe	81
PID 5088 wrote to memory of 3504	5088	spoolsv.exe	82
PID 5088 wrote to memory of 3504	5088	spoolsv.exe	82
PID 5088 wrote to memory of 3504	5088	spoolsv.exe	82
PID 3504 wrote to memory of 3780	3504	svchost.exe	83
PID 3504 wrote to memory of 3780	3504	svchost.exe	83
PID 3504 wrote to memory of 3780	3504	svchost.exe	83
PID 3504 wrote to memory of 220	3504	svchost.exe	84
PID 3504 wrote to memory of 220	3504	svchost.exe	84
PID 3504 wrote to memory of 220	3504	svchost.exe	84
PID 3504 wrote to memory of 2360	3504	svchost.exe	94
PID 3504 wrote to memory of 2360	3504	svchost.exe	94
PID 3504 wrote to memory of 2360	3504	svchost.exe	94
PID 3504 wrote to memory of 3688	3504	svchost.exe	96
PID 3504 wrote to memory of 3688	3504	svchost.exe	96
PID 3504 wrote to memory of 3688	3504	svchost.exe	96

C:\Users\Admin\AppData\Local\Temp\04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe
"C:\Users\Admin\AppData\Local\Temp\04d389168ddfda234692dc180bc23228fc87302c6efdfe68dfe921dd32df787d.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1320
- \??\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:4668
- - \??\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:5088
  - - \??\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:3504
    - - \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:3780
    - - C:\Windows\SysWOW64\at.exe
        
        at 18:18 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:220
    - - C:\Windows\SysWOW64\at.exe
        
        at 18:19 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:2360
    - - C:\Windows\SysWOW64\at.exe
        
        at 18:20 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:3688

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

Loading Replay Monitor...

Downloads

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

Filesize
66KB

MD5
e4bd8d1593601caf3455d2b551cc5edf

SHA1
e01684ff472ddd220ffcd528913ea55db36b9e03

SHA256
6eb241d40f3111f2aca31036e38067264c6cb2ee8bf636ab11d3145213bfd9df

SHA512
080b980f8ae7270f8dbab9e8510292a6e3e7fe0bfca1ae743522319195360ca088a91fa0bdbae95fec6b012fd5e55fa2e591bd18d8af1f934d924426d4e8501c

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

Filesize
66KB

MD5
cb2ccf25a43c16cdbc26c248656dba83

SHA1
eca8c07ac2b4b1000d6a9bf7ac88792fbe5a70fb

SHA256
1e45e6e3d35dee1facecf9e722b132d98eda97476b1eb1f028044f53a8d9463a

SHA512
76e98d9b6996743e13657b659b17b4ff6e01b32b1dbaedfe77223e7e5da27e942edd042a459ca1d4a66cb9549a629d96f08b5abbe161c930fe4ba3fa4f5fd8e7

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

Filesize
66KB

MD5
605c02b38466ab742684dc859dc65cfa

SHA1
cace3e72eea2cebe22b0fe341c2bbdee40c2ac28

SHA256
9c412c1c3a37076e5a04a22722c002908895c9511a3f2a9495ddffd2fdd4003d

SHA512
6d9d6aac2dd057210a3a4102e1347101ed7f64718c5d62f3f6be454ce1e88824e433476104301c41a4242a8ec2a9af127dbb2f09daafb5311f0260f01cf0962a

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

Filesize
66KB

MD5
88e86a9dd6295f3d361207d481be7673

SHA1
021583a3fd82b1daea11062ca4af039665316ec0

SHA256
da558d94cdbdd89a8432a0da3e31d8869f667e24c7bd07224268a36f99fa4e92

SHA512
4ac2d57bf145e8b1765b5de74dfbc313cb11112e7f94de560f2220812c0b3540491f4a2af7f33fbeb85851a1a5da710628e9f4019b94f37caec60b54c70858d9

Download Submit
memory/1320-1-0x00000000001C0000-0x00000000001C4000-memory.dmp

Filesize
16KB

Download
memory/1320-3-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1320-2-0x0000000074FE0000-0x000000007513D000-memory.dmp

Filesize
1.4MB

Download
memory/1320-4-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/1320-55-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1320-56-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/1320-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3504-35-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3504-36-0x0000000074FE0000-0x000000007513D000-memory.dmp

Filesize
1.4MB

Download
memory/3504-40-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3504-60-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3780-43-0x0000000074FE0000-0x000000007513D000-memory.dmp

Filesize
1.4MB

Download
memory/3780-49-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4668-15-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4668-13-0x0000000074FE0000-0x000000007513D000-memory.dmp

Filesize
1.4MB

Download
memory/4668-58-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4668-69-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/5088-24-0x0000000074FE0000-0x000000007513D000-memory.dmp

Filesize
1.4MB

Download
memory/5088-53-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/5088-26-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download