e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3

Analysis

max time kernel
120s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 06:51

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General

Target

e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
Size

135KB
MD5

4378eac179cc19e0d57d83c5f7bd2b80
SHA1

48eb8741f6081b2f01f69d04ca422cd0075d7bc6
SHA256

e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3
SHA512

09315720b50c653b3027b9e8815d6252745c856b54a0ced4f5f1d5cc46f2cc457175734c01c5d5234e90c061ef3cf100926314c0d694622c835add5407c5b1ca
SSDEEP

1536:XfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbgwFTlI:XVqoCl/YgjxEufVU0TbTyDDalbI

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2796	explorer.exe
2736	spoolsv.exe
2568	svchost.exe
2712	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2796	explorer.exe
2736	spoolsv.exe
2568	svchost.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\\resources\\themes\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3000	schtasks.exe
1232	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2796	explorer.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2796	explorer.exe
2796	explorer.exe
2568	svchost.exe
2568	svchost.exe
2796	explorer.exe
2796	explorer.exe
2568	svchost.exe
2796	explorer.exe
2568	svchost.exe
2568	svchost.exe
2796	explorer.exe
2796	explorer.exe
2568	svchost.exe
2796	explorer.exe
2568	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2796	explorer.exe
2568	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
2796	explorer.exe
2796	explorer.exe
2736	spoolsv.exe
2736	spoolsv.exe
2568	svchost.exe
2568	svchost.exe
2712	spoolsv.exe
2712	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2796	2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe	30
PID 2688 wrote to memory of 2796	2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe	30
PID 2688 wrote to memory of 2796	2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe	30
PID 2688 wrote to memory of 2796	2688	e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe	30
PID 2796 wrote to memory of 2736	2796	explorer.exe	31
PID 2796 wrote to memory of 2736	2796	explorer.exe	31
PID 2796 wrote to memory of 2736	2796	explorer.exe	31
PID 2796 wrote to memory of 2736	2796	explorer.exe	31
PID 2736 wrote to memory of 2568	2736	spoolsv.exe	32
PID 2736 wrote to memory of 2568	2736	spoolsv.exe	32
PID 2736 wrote to memory of 2568	2736	spoolsv.exe	32
PID 2736 wrote to memory of 2568	2736	spoolsv.exe	32
PID 2568 wrote to memory of 2712	2568	svchost.exe	33
PID 2568 wrote to memory of 2712	2568	svchost.exe	33
PID 2568 wrote to memory of 2712	2568	svchost.exe	33
PID 2568 wrote to memory of 2712	2568	svchost.exe	33
PID 2796 wrote to memory of 2584	2796	explorer.exe	34
PID 2796 wrote to memory of 2584	2796	explorer.exe	34
PID 2796 wrote to memory of 2584	2796	explorer.exe	34
PID 2796 wrote to memory of 2584	2796	explorer.exe	34
PID 2568 wrote to memory of 3000	2568	svchost.exe	35
PID 2568 wrote to memory of 3000	2568	svchost.exe	35
PID 2568 wrote to memory of 3000	2568	svchost.exe	35
PID 2568 wrote to memory of 3000	2568	svchost.exe	35
PID 2568 wrote to memory of 1232	2568	svchost.exe	38
PID 2568 wrote to memory of 1232	2568	svchost.exe	38
PID 2568 wrote to memory of 1232	2568	svchost.exe	38
PID 2568 wrote to memory of 1232	2568	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe
"C:\Users\Admin\AppData\Local\Temp\e221e438393ee641406d919d43a4eb3205644ae31f35713c059f688bc2ebe3f3N.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2688
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2796
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2736
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2568
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2712
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 06:53 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:3000
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 06:54 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1232
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
50de0614b61dd9c6eced2ec5cf050477

SHA1
b42ee9f3fc4a603930fdec8aaade1ae76afb1996

SHA256
ae886288de047957213f8988d90c4a8c5ff228b9f296f40088a6b00caadaa7a3

SHA512
6b80e178c792006961500a28a1c385ffc0b5391806504e0b2c005a40b2f8c7f55f91122ec221e6597e28b04b899f1e2c6804473189dfd6cd9a20c3d18a2d0648

Download Submit
\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
943ba5c0888c3af74a198dbd9941d651

SHA1
0a99bb0fe23da7209027feff24e2808b610ca12c

SHA256
1145b68da1b13626b124ce549a028640cb6cffa7caf16f1c9e33aec193afe024

SHA512
2ec1bf8d04ecb595e567c2ca64124186b45545fd72bfbedd72f5b309191d055e7561bc545ab903a4f8c94adf453ca76c72b88353f33ab3e19deff73c43f750ea

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
70a7570a02b51552460c6583e18ead99

SHA1
3df936d9d1b8937a32aff15144265dccdaac46e9

SHA256
313702e9818caeb5c706ddd5a41602db0a76c92e309d64893d684ba4f8823cfe

SHA512
e3e42e635b84941231a595fd6bd694194c1b7faf5c9193774d9d53ce56ee7f86703c8c7168cbcb74222a8816ec2c5d6a1b776cacb6be0f9f497585ab2c70fc95

Download Submit
memory/2568-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2568-46-0x0000000000420000-0x000000000043F000-memory.dmp

Filesize
124KB

Download
memory/2688-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2688-8-0x00000000003C0000-0x00000000003DF000-memory.dmp

Filesize
124KB

Download
memory/2688-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2712-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2736-30-0x0000000000330000-0x000000000034F000-memory.dmp

Filesize
124KB

Download
memory/2736-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2796-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download