858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bd

Analysis

max time kernel
150s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/10/2024, 05:33

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General

Target

858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
Size

135KB
MD5

3132a11da390f887775fd5b2c955fa70
SHA1

6cd1e44d2a29b689233ba880de2569074463bfb1
SHA256

858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bd
SHA512

8d00bbad68c36cdc9ea00fd3d559e6aadd875b682fbbc70415f0d04689978df42b193e9d306f728ead8690d1279520c9451ce0e6327d8c971115386753d71897
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbV9z:UVqoCl/YgjxEufVU0TbTyDDal/z

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2800	explorer.exe
2680	spoolsv.exe
2916	svchost.exe
2572	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2800	explorer.exe
2680	spoolsv.exe
2916	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\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
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2628	schtasks.exe
1304	schtasks.exe
2108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2916	svchost.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2916	svchost.exe
2916	svchost.exe
2800	explorer.exe
2916	svchost.exe
2800	explorer.exe
2916	svchost.exe
2800	explorer.exe
2916	svchost.exe
2800	explorer.exe
2916	svchost.exe
2800	explorer.exe
2916	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2800	explorer.exe
2916	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
2800	explorer.exe
2800	explorer.exe
2680	spoolsv.exe
2680	spoolsv.exe
2916	svchost.exe
2916	svchost.exe
2572	spoolsv.exe
2572	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2800	2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe	30
PID 2232 wrote to memory of 2800	2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe	30
PID 2232 wrote to memory of 2800	2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe	30
PID 2232 wrote to memory of 2800	2232	858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe	30
PID 2800 wrote to memory of 2680	2800	explorer.exe	31
PID 2800 wrote to memory of 2680	2800	explorer.exe	31
PID 2800 wrote to memory of 2680	2800	explorer.exe	31
PID 2800 wrote to memory of 2680	2800	explorer.exe	31
PID 2680 wrote to memory of 2916	2680	spoolsv.exe	32
PID 2680 wrote to memory of 2916	2680	spoolsv.exe	32
PID 2680 wrote to memory of 2916	2680	spoolsv.exe	32
PID 2680 wrote to memory of 2916	2680	spoolsv.exe	32
PID 2916 wrote to memory of 2572	2916	svchost.exe	33
PID 2916 wrote to memory of 2572	2916	svchost.exe	33
PID 2916 wrote to memory of 2572	2916	svchost.exe	33
PID 2916 wrote to memory of 2572	2916	svchost.exe	33
PID 2800 wrote to memory of 2552	2800	explorer.exe	34
PID 2800 wrote to memory of 2552	2800	explorer.exe	34
PID 2800 wrote to memory of 2552	2800	explorer.exe	34
PID 2800 wrote to memory of 2552	2800	explorer.exe	34
PID 2916 wrote to memory of 2628	2916	svchost.exe	35
PID 2916 wrote to memory of 2628	2916	svchost.exe	35
PID 2916 wrote to memory of 2628	2916	svchost.exe	35
PID 2916 wrote to memory of 2628	2916	svchost.exe	35
PID 2916 wrote to memory of 1304	2916	svchost.exe	38
PID 2916 wrote to memory of 1304	2916	svchost.exe	38
PID 2916 wrote to memory of 1304	2916	svchost.exe	38
PID 2916 wrote to memory of 1304	2916	svchost.exe	38
PID 2916 wrote to memory of 2108	2916	svchost.exe	41
PID 2916 wrote to memory of 2108	2916	svchost.exe	41
PID 2916 wrote to memory of 2108	2916	svchost.exe	41
PID 2916 wrote to memory of 2108	2916	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.exe
"C:\Users\Admin\AppData\Local\Temp\858e2981066c9ce348d810dcaded79e16adc507675cac4a993d4b80bb295c1bdN.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:2232
- \??\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:2800
- - \??\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:2680
  - - \??\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:2916
    - - \??\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:2572
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 05:35 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2628
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 05:36 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1304
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 05:37 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2108
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2552

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\Themes\explorer.exe

Filesize
135KB

MD5
87d528a3db167d2f60245e23e0f6ae53

SHA1
4300f6c91eb45c9148926816ac6e0b9603499ca7

SHA256
d947c8369af0171e357bb974bebd3d3b4452933b571c47d2d2e7b295238c8bf4

SHA512
cd4d0f56185a27d8febc185e486daa6fe8597b774ab34fd48d2fa42fb71ecb3d0e4a3769c06b481c8effe5383a681e27075ddcdcf0896899954ad066e23ca036

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

Filesize
135KB

MD5
ab0ebb36fdc113d3e48e2b3ac70626f7

SHA1
c8fe0da6387737e26bc933c6ac4ff3d1db15b7a7

SHA256
a11886cee85d69a7035d7705ec1edd982d30805feb44a03cd4551f69259de086

SHA512
ae84a973461ff58ab50f64c6cf70b2b893f872ef1fc777b8f8682cf89102d1a8c0c4b87bc5900064402fdc1d5865b15763191f9a57a02eaec800f9a3a8261c4a

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
69998f78601ca9efff6d6edc6f095ebe

SHA1
35329149b3d0ce34ffe15fbc6ab1a7b7cb10b620

SHA256
07ae959bb23e44f1ea6583c9ed1cfd269c338d3e5b29d40b059c40672b91be24

SHA512
a7e840f44158ed4a79c9b4f490a80ed8fa93a6a30b5dfd8caf06beccaccc1e6b7c84d276480521321659a3e4c92465760a30b6663f2fb09e607dbc00913e620f

Download Submit
memory/2232-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2232-10-0x00000000002E0000-0x00000000002FF000-memory.dmp

Filesize
124KB

Download
memory/2232-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2572-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2680-31-0x00000000005D0000-0x00000000005EF000-memory.dmp

Filesize
124KB

Download
memory/2680-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2800-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2916-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download