6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-09-2024 22:07

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General

Target

6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
Size

135KB
MD5

6b301094cf3ea605312cdc96b9b8bc89
SHA1

7c541453573b98a730c9275c0922d53429251e48
SHA256

6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc
SHA512

13b1bbc6c4765c41e19b68e97f8e726c7e3e80bbe329d2ad825ec947ada66c044ea7bb7e3f4a486d5f1ba1aff2651c0baa8a3e1d2d9901f5f5134f6761322b17
SSDEEP

3072:UVqoCl/YgjxEufVU0TbTyDDalp5777777777777777777777777777777777777Y:UsLqdufVUNDaO

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
2484	explorer.exe
2784	spoolsv.exe
2728	svchost.exe
3016	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2484	explorer.exe
2784	spoolsv.exe
2728	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\themes\explorer.exe	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.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 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	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.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
576	schtasks.exe
3032	schtasks.exe
1616	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2484	explorer.exe
2484	explorer.exe
2484	explorer.exe
2728	svchost.exe
2728	svchost.exe
2484	explorer.exe
2728	svchost.exe
2484	explorer.exe
2728	svchost.exe
2484	explorer.exe
2728	svchost.exe
2484	explorer.exe
2728	svchost.exe
2484	explorer.exe
2728	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2484	explorer.exe
2728	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
2484	explorer.exe
2484	explorer.exe
2784	spoolsv.exe
2784	spoolsv.exe
2728	svchost.exe
2728	svchost.exe
3016	spoolsv.exe
3016	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2484	2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe	30
PID 2524 wrote to memory of 2484	2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe	30
PID 2524 wrote to memory of 2484	2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe	30
PID 2524 wrote to memory of 2484	2524	6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe	30
PID 2484 wrote to memory of 2784	2484	explorer.exe	31
PID 2484 wrote to memory of 2784	2484	explorer.exe	31
PID 2484 wrote to memory of 2784	2484	explorer.exe	31
PID 2484 wrote to memory of 2784	2484	explorer.exe	31
PID 2784 wrote to memory of 2728	2784	spoolsv.exe	32
PID 2784 wrote to memory of 2728	2784	spoolsv.exe	32
PID 2784 wrote to memory of 2728	2784	spoolsv.exe	32
PID 2784 wrote to memory of 2728	2784	spoolsv.exe	32
PID 2728 wrote to memory of 3016	2728	svchost.exe	33
PID 2728 wrote to memory of 3016	2728	svchost.exe	33
PID 2728 wrote to memory of 3016	2728	svchost.exe	33
PID 2728 wrote to memory of 3016	2728	svchost.exe	33
PID 2484 wrote to memory of 2836	2484	explorer.exe	34
PID 2484 wrote to memory of 2836	2484	explorer.exe	34
PID 2484 wrote to memory of 2836	2484	explorer.exe	34
PID 2484 wrote to memory of 2836	2484	explorer.exe	34
PID 2728 wrote to memory of 1616	2728	svchost.exe	35
PID 2728 wrote to memory of 1616	2728	svchost.exe	35
PID 2728 wrote to memory of 1616	2728	svchost.exe	35
PID 2728 wrote to memory of 1616	2728	svchost.exe	35
PID 2728 wrote to memory of 576	2728	svchost.exe	39
PID 2728 wrote to memory of 576	2728	svchost.exe	39
PID 2728 wrote to memory of 576	2728	svchost.exe	39
PID 2728 wrote to memory of 576	2728	svchost.exe	39
PID 2728 wrote to memory of 3032	2728	svchost.exe	41
PID 2728 wrote to memory of 3032	2728	svchost.exe	41
PID 2728 wrote to memory of 3032	2728	svchost.exe	41
PID 2728 wrote to memory of 3032	2728	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.exe
"C:\Users\Admin\AppData\Local\Temp\6344de41d68b03a4033637e5d9f61b4e0298b65ab113c390e20f9602c34d33dc.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:2524
- \??\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:2484
- - \??\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:2784
  - - \??\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:2728
    - - \??\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:3016
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:09 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1616
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:10 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:576
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:11 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:3032
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2836

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
7164880987fd80801d499918af76a5d8

SHA1
219f2d40dd1d73ddb4f0148e2961b1fe372b6438

SHA256
752d0beee89f3072db9f381a993a9a51a4f9b5803be8f8bcada86bd5923b4dbf

SHA512
bcae978e60cac6cd8065ec37cb21133340f6c664e8507849d86fe636c048af23bc5ecc97626c550d42b352c2568dbdcc43beff62d0de77dd0bc2016b5a0501f7

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

Filesize
135KB

MD5
f4a164ab219e0995766897b1c4b90610

SHA1
c603376ad3804283c3d2e75ee7529627d96cdb96

SHA256
e8411f7dfbe1bbad2e872b6307938343fc915ecac4629a1514ff6ec210271066

SHA512
8d59f589432182acde32be2976e16755972df1d69a40930c4f7183ec251837f57fe0efda25891e9fb199b82e12d68a66cd4a0b58c4d45d38af2d17a102af043e

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
e367849e73d6db007ee8da718329efc2

SHA1
0a2e548680671df60be9f2f5156a7ba454fe9c10

SHA256
c31b43ef21d2bc145a38a7a15134229d1cd3d4849dfdfb395119a9aec79116db

SHA512
509b4ece103bb68b89d7c6fde318e45a1d0ca1b75366e9bfc050e17844d081f43865910c70e5b8ac55fcf325b271173fc0a1939b787d1beec297e99a3713fc88

Download Submit
memory/2484-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2524-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2524-8-0x00000000003D0000-0x00000000003EF000-memory.dmp

Filesize
124KB

Download
memory/2524-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2728-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2784-29-0x00000000002E0000-0x00000000002FF000-memory.dmp

Filesize
124KB

Download
memory/2784-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3016-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download