f83224e5f5eb40cccb88b4a6b16fd1548e8165cf902674f27a9e22498aa9cfa3

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 22:40

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General

Target

d47401e66bfd3dbcfef83132f9d2edd0N.exe
Size

206KB
MD5

d47401e66bfd3dbcfef83132f9d2edd0
SHA1

00161611d77b1f00cc922c4da58cba1bbbf38588
SHA256

f83224e5f5eb40cccb88b4a6b16fd1548e8165cf902674f27a9e22498aa9cfa3
SHA512

4bb50c6f7a3550f2c8b6c1b304d95d9385a808b5f37cdbd870055d5d7121750c7c756540a99a14369dfd3a900723dc72cf66d5320408eaec81dbd132c18cf06c
SSDEEP

1536:/fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbJdI2:/VqoCl/YgjxEufVU0TbTyDDalbb

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
8	explorer.exe
4912	spoolsv.exe
388	svchost.exe
4220	spoolsv.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	d47401e66bfd3dbcfef83132f9d2edd0N.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 5 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	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	d47401e66bfd3dbcfef83132f9d2edd0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe
8	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
8	explorer.exe
388	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe
8	explorer.exe
8	explorer.exe
4912	spoolsv.exe
4912	spoolsv.exe
388	svchost.exe
388	svchost.exe
4220	spoolsv.exe
4220	spoolsv.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 8	4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe	84
PID 4520 wrote to memory of 8	4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe	84
PID 4520 wrote to memory of 8	4520	d47401e66bfd3dbcfef83132f9d2edd0N.exe	84
PID 8 wrote to memory of 4912	8	explorer.exe	85
PID 8 wrote to memory of 4912	8	explorer.exe	85
PID 8 wrote to memory of 4912	8	explorer.exe	85
PID 4912 wrote to memory of 388	4912	spoolsv.exe	86
PID 4912 wrote to memory of 388	4912	spoolsv.exe	86
PID 4912 wrote to memory of 388	4912	spoolsv.exe	86
PID 388 wrote to memory of 4220	388	svchost.exe	88
PID 388 wrote to memory of 4220	388	svchost.exe	88
PID 388 wrote to memory of 4220	388	svchost.exe	88

C:\Users\Admin\AppData\Local\Temp\d47401e66bfd3dbcfef83132f9d2edd0N.exe
"C:\Users\Admin\AppData\Local\Temp\d47401e66bfd3dbcfef83132f9d2edd0N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4520
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - 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:8
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4912
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:388
    - - \??\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:4220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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
206KB

MD5
bb636e069893bb5de4c6e4085880a290

SHA1
c4d2cb63b3c12facea758106e734c93036768f85

SHA256
c962ab286cfec6f2f81217dfadbf76a7cb0d5e64991e9286e3c8f5d9ae326c0c

SHA512
61190ccc6ba53f321f8bc7db7fc01b82c0bd2abbfd0368cf6efc4a76db4095416b2f01716bd45fa30c5a92d1f1e96c2f25be712df189caabd7fe0c50d487e748

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

Filesize
206KB

MD5
736cebcea000bd3627d93811e4004e61

SHA1
5ae4228a3beabff7cabe657e09bd1eec6643034f

SHA256
766fb49acde1fbf4ca4f68e9fc6dd12bd12fe2a18b60951ad2bb5281388f0386

SHA512
7e1fb8ab852aa2d8aca8f0004bf58efb1431ef50ffb971ccfd7ae3eeaea7d51f3406213b52c4bb5859f24ca0febb7b624dc4eca06bcf891894b1487dfde84671

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

Filesize
206KB

MD5
09128af09150e066b1ab4b5cd704316a

SHA1
d2713b81f09486d8afe1c05e50d5d8cfabfc954b

SHA256
953365a2042ed55eb324faab2f72dd6bb7a9eacc0b9a833c25fe8e638f628250

SHA512
4fa8508d3a8bffde843c1a107c27a0f5fb9cbcb8bc81d21708355311179a1ba4f84223cd61e8724c51da044d6ccb623466d988c05d9933d13217d0570e7f17d4

Download Submit
memory/8-35-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/388-36-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4220-32-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4520-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4520-34-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4912-33-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download