336b7daa3ecfcb6db2f1cc975d7543ce5beffc731027a1645ffd9abd4d029742

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/09/2024, 23:04

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General

Target

5b4764332be4aef7cb426e6852702670N.exe
Size

207KB
MD5

5b4764332be4aef7cb426e6852702670
SHA1

c22b91bce47529767b2d4dfb7e1d14bc62438469
SHA256

336b7daa3ecfcb6db2f1cc975d7543ce5beffc731027a1645ffd9abd4d029742
SHA512

417de9c11475bdf584987e76ba4b3f2506922fba3a972bc4bc0ecab72402ebd0b3bcf724c59c11c57f7eb58c5bce0764d7ea67339424cd08732ca2f9cd4f2b09
SSDEEP

1536:/fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbJdo:/VqoCl/YgjxEufVU0TbTyDDalbo

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2164	explorer.exe
2680	spoolsv.exe
2688	svchost.exe
2028	spoolsv.exe

Loads dropped DLL 8 IoCs

pid	Process
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2164	explorer.exe
2164	explorer.exe
2680	spoolsv.exe
2680	spoolsv.exe
2688	svchost.exe
2688	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	5b4764332be4aef7cb426e6852702670N.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	5b4764332be4aef7cb426e6852702670N.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
3056	schtasks.exe
2912	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2688	svchost.exe
2164	explorer.exe
2164	explorer.exe
2164	explorer.exe
2688	svchost.exe
2688	svchost.exe
2164	explorer.exe
2688	svchost.exe
2164	explorer.exe
2688	svchost.exe
2164	explorer.exe
2688	svchost.exe
2164	explorer.exe
2688	svchost.exe
2164	explorer.exe
2688	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2164	explorer.exe
2688	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2856	5b4764332be4aef7cb426e6852702670N.exe
2856	5b4764332be4aef7cb426e6852702670N.exe
2164	explorer.exe
2164	explorer.exe
2680	spoolsv.exe
2680	spoolsv.exe
2688	svchost.exe
2688	svchost.exe
2028	spoolsv.exe
2028	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 2164	2856	5b4764332be4aef7cb426e6852702670N.exe	30
PID 2856 wrote to memory of 2164	2856	5b4764332be4aef7cb426e6852702670N.exe	30
PID 2856 wrote to memory of 2164	2856	5b4764332be4aef7cb426e6852702670N.exe	30
PID 2856 wrote to memory of 2164	2856	5b4764332be4aef7cb426e6852702670N.exe	30
PID 2164 wrote to memory of 2680	2164	explorer.exe	31
PID 2164 wrote to memory of 2680	2164	explorer.exe	31
PID 2164 wrote to memory of 2680	2164	explorer.exe	31
PID 2164 wrote to memory of 2680	2164	explorer.exe	31
PID 2680 wrote to memory of 2688	2680	spoolsv.exe	32
PID 2680 wrote to memory of 2688	2680	spoolsv.exe	32
PID 2680 wrote to memory of 2688	2680	spoolsv.exe	32
PID 2680 wrote to memory of 2688	2680	spoolsv.exe	32
PID 2688 wrote to memory of 2028	2688	svchost.exe	33
PID 2688 wrote to memory of 2028	2688	svchost.exe	33
PID 2688 wrote to memory of 2028	2688	svchost.exe	33
PID 2688 wrote to memory of 2028	2688	svchost.exe	33
PID 2164 wrote to memory of 2548	2164	explorer.exe	34
PID 2164 wrote to memory of 2548	2164	explorer.exe	34
PID 2164 wrote to memory of 2548	2164	explorer.exe	34
PID 2164 wrote to memory of 2548	2164	explorer.exe	34
PID 2688 wrote to memory of 3056	2688	svchost.exe	35
PID 2688 wrote to memory of 3056	2688	svchost.exe	35
PID 2688 wrote to memory of 3056	2688	svchost.exe	35
PID 2688 wrote to memory of 3056	2688	svchost.exe	35
PID 2688 wrote to memory of 2912	2688	svchost.exe	38
PID 2688 wrote to memory of 2912	2688	svchost.exe	38
PID 2688 wrote to memory of 2912	2688	svchost.exe	38
PID 2688 wrote to memory of 2912	2688	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\5b4764332be4aef7cb426e6852702670N.exe
"C:\Users\Admin\AppData\Local\Temp\5b4764332be4aef7cb426e6852702670N.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:2856
- \??\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:2164
- - \??\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:2688
    - - \??\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:2028
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:06 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:3056
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:07 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2912
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2548

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\svchost.exe

Filesize
206KB

MD5
7ee90106341a8b8e696629f735836c11

SHA1
79febe00c75bfcd7c2386a5d2ebb411b62c41df0

SHA256
3b1036479a3e3429fda71cfc06b7eb9366752897667bf5201e18a268b9b12ad5

SHA512
b4eb85ba66638cf9bde6b01d064627fd7522e3191f383ec2e71386485b40356118c797ab067128795d193e38c4ea959ce7fbac386b5c2fcfaae1dafa7ba7b669

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

Filesize
206KB

MD5
bc16f2cb35c0ba94e85f42ff76d27658

SHA1
180e88e82e3a2ec097ec0aca43dc2cdbc275a8a5

SHA256
bb85416b86b0b8d1bc3128f07d90a7b479d5466326ed512d7d9caca047c87cd5

SHA512
fe3cbf1e453c46af35e2954a504af39b2a0e6e7c073ab3c7080b3ade3afe4902f61e1dc7f6a7cee3b82c4690568110a67298129f756b8d39d844a20932d64f01

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
206KB

MD5
1d2265162f376155667c7372d660a7a3

SHA1
f16513f028def150bc5dd7519e3fe2845fe88a08

SHA256
c0ffadac0925f9e17fddd36c96c66cb99c9deed160e9a7c8fcc8f86266a76f5b

SHA512
eee24e459f35a29f05ec277ddb300ca4d06430471824a414bab9a887047f582be93ad18dc8a38a3cbe57a6f647cae724f6548bbd18fbdd98cb9cf1f8d0e15ddd

Download Submit
memory/2028-52-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2164-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2680-40-0x0000000001D10000-0x0000000001D3F000-memory.dmp

Filesize
188KB

Download
memory/2680-53-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2688-48-0x0000000000240000-0x000000000026F000-memory.dmp

Filesize
188KB

Download
memory/2688-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2688-57-0x0000000000240000-0x000000000026F000-memory.dmp

Filesize
188KB

Download
memory/2856-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2856-54-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2856-12-0x0000000002610000-0x000000000263F000-memory.dmp

Filesize
188KB

Download