972813ae187eb138fd064e87cd7e2afe2577ac9ed50ef956328c996b77c38da1

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 23:41

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General

Target

4feaa0e72cf04b8d03821c6ca54ab260N.exe
Size

206KB
MD5

4feaa0e72cf04b8d03821c6ca54ab260
SHA1

8a498868446c9ab9b7c3b9506195cc916616fdd6
SHA256

972813ae187eb138fd064e87cd7e2afe2577ac9ed50ef956328c996b77c38da1
SHA512

272b8b69081a7f0198e4a5a16ff8438f1ccac23d7570d8c39f61ff624121de9b3e99e29de7e0441853b9206c92c1100c39170a16c1b4db49df374260e786809b
SSDEEP

1536:/fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbJd8:/VqoCl/YgjxEufVU0TbTyDDalb8

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe

Executes dropped EXE 4 IoCs

pid	Process
2784	explorer.exe
2472	spoolsv.exe
2872	svchost.exe
2632	spoolsv.exe

Loads dropped DLL 8 IoCs

pid	Process
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
2784	explorer.exe
2784	explorer.exe
2472	spoolsv.exe
2472	spoolsv.exe
2872	svchost.exe
2872	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"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
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

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\themes\explorer.exe	4feaa0e72cf04b8d03821c6ca54ab260N.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.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	4feaa0e72cf04b8d03821c6ca54ab260N.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
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
3020	schtasks.exe
344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2784	explorer.exe
2872	svchost.exe
2872	svchost.exe
2784	explorer.exe
2784	explorer.exe
2784	explorer.exe
2872	svchost.exe
2872	svchost.exe
2784	explorer.exe
2784	explorer.exe
2872	svchost.exe
2872	svchost.exe
2784	explorer.exe
2784	explorer.exe
2872	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2872	svchost.exe
2784	explorer.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe
2784	explorer.exe
2784	explorer.exe
2472	spoolsv.exe
2472	spoolsv.exe
2872	svchost.exe
2872	svchost.exe
2632	spoolsv.exe
2632	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2784	1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe	30
PID 1508 wrote to memory of 2784	1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe	30
PID 1508 wrote to memory of 2784	1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe	30
PID 1508 wrote to memory of 2784	1508	4feaa0e72cf04b8d03821c6ca54ab260N.exe	30
PID 2784 wrote to memory of 2472	2784	explorer.exe	31
PID 2784 wrote to memory of 2472	2784	explorer.exe	31
PID 2784 wrote to memory of 2472	2784	explorer.exe	31
PID 2784 wrote to memory of 2472	2784	explorer.exe	31
PID 2472 wrote to memory of 2872	2472	spoolsv.exe	32
PID 2472 wrote to memory of 2872	2472	spoolsv.exe	32
PID 2472 wrote to memory of 2872	2472	spoolsv.exe	32
PID 2472 wrote to memory of 2872	2472	spoolsv.exe	32
PID 2872 wrote to memory of 2632	2872	svchost.exe	33
PID 2872 wrote to memory of 2632	2872	svchost.exe	33
PID 2872 wrote to memory of 2632	2872	svchost.exe	33
PID 2872 wrote to memory of 2632	2872	svchost.exe	33
PID 2784 wrote to memory of 2744	2784	explorer.exe	34
PID 2784 wrote to memory of 2744	2784	explorer.exe	34
PID 2784 wrote to memory of 2744	2784	explorer.exe	34
PID 2784 wrote to memory of 2744	2784	explorer.exe	34
PID 2872 wrote to memory of 3020	2872	svchost.exe	35
PID 2872 wrote to memory of 3020	2872	svchost.exe	35
PID 2872 wrote to memory of 3020	2872	svchost.exe	35
PID 2872 wrote to memory of 3020	2872	svchost.exe	35
PID 2872 wrote to memory of 344	2872	svchost.exe	39
PID 2872 wrote to memory of 344	2872	svchost.exe	39
PID 2872 wrote to memory of 344	2872	svchost.exe	39
PID 2872 wrote to memory of 344	2872	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\4feaa0e72cf04b8d03821c6ca54ab260N.exe
"C:\Users\Admin\AppData\Local\Temp\4feaa0e72cf04b8d03821c6ca54ab260N.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:1508
- \??\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:2784
- - \??\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:2472
  - - \??\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:2872
    - - \??\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:2632
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:43 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:3020
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:44 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:344
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2744

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

\Windows\Resources\Themes\explorer.exe

Filesize
206KB

MD5
704439bbc2fdf5281410e55fc48f864d

SHA1
4fca7a1b1ea7ce1b2c822f6c6a3978f43e508ba4

SHA256
77e7e6c7f5013cc3dfd75b60d28d5d753efbef6c7d2392e0b7f896277bccdfc2

SHA512
c24b7fbf6c9c525fa1d3878a1efd7f30004e98cd40cadb66e7c68f2f121ab9958202691cbcfac7a9af83b9f283b577083f36a46b7a9b8e4b042d14d622d71999

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
206KB

MD5
1f08e2a161ef29b77e4a8dcce4a778ec

SHA1
6b62245f9a0900c98833381f1a586b3eae7e4b27

SHA256
520d975b3edb28421d3846fca507d206d95f7a446b84b67b3b1e7439a1ff4518

SHA512
49115d5d7e3cd8c6acf46ffc9346fa1148d57cb20d35cb81b9cc8d84cf5beaf15691f906c2d722baaabf3e9bc425d30019677d2d34e8625797b847f9c0870762

Download Submit
\Windows\Resources\svchost.exe

Filesize
206KB

MD5
e87e81e5f36709bd99313f3ae9bbbfd3

SHA1
dc7e75ec0766181121db864acdd49b9ec229e588

SHA256
4d148995a40d40c7065812cf80b069fc2c8e1e58d2d938a2798e74382495cf3b

SHA512
92ccb92c516a7e1774e8c9d01f478cb116d45e0f094599dfefcbe37f711e7cb7bc99cf39dfb43e13d32dfc8eb80c020fef8f14cae2e2e3cf226e6f2413ac9932

Download Submit
memory/1508-13-0x00000000002D0000-0x00000000002FF000-memory.dmp

Filesize
188KB

Download
memory/1508-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1508-14-0x00000000002D0000-0x00000000002FF000-memory.dmp

Filesize
188KB

Download
memory/1508-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2472-41-0x00000000003C0000-0x00000000003EF000-memory.dmp

Filesize
188KB

Download
memory/2472-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2632-52-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2632-54-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2784-28-0x0000000000430000-0x000000000045F000-memory.dmp

Filesize
188KB

Download
memory/2784-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2784-58-0x0000000000430000-0x000000000045F000-memory.dmp

Filesize
188KB

Download
memory/2872-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download