234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24/08/2024, 20:22

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General

Target

234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
Size

206KB
MD5

9876b3c6c6fcf53bdf065d81ec051072
SHA1

a6c41ea3dc0420870363aa2cb4f96006f831e54e
SHA256

234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f
SHA512

abcf53fa1bb3e5866230517516876100bbf7ca38f72e0de1f48922aa64c153f7cc22e533af9a8ecda22b8d087f854dabd22e4de8b705ebf98b5485bd385becff
SSDEEP

1536:/fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbJdV:/VqoCl/YgjxEufVU0TbTyDDalbV

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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2500	explorer.exe
2388	spoolsv.exe
2908	svchost.exe
2724	spoolsv.exe

Loads dropped DLL 8 IoCs

pid	Process
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
2500	explorer.exe
2500	explorer.exe
2388	spoolsv.exe
2388	spoolsv.exe
2908	svchost.exe
2908	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\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	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
File opened for modification	\??\c:\windows\resources\spoolsv.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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
2856	schtasks.exe
2812	schtasks.exe
580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe
2500	explorer.exe
2500	explorer.exe
2500	explorer.exe
2908	svchost.exe
2908	svchost.exe
2500	explorer.exe
2908	svchost.exe
2500	explorer.exe
2908	svchost.exe
2500	explorer.exe
2908	svchost.exe
2500	explorer.exe
2908	svchost.exe
2500	explorer.exe
2908	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2500	explorer.exe
2908	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
2500	explorer.exe
2500	explorer.exe
2388	spoolsv.exe
2388	spoolsv.exe
2908	svchost.exe
2908	svchost.exe
2724	spoolsv.exe
2724	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2500	1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe	30
PID 1956 wrote to memory of 2500	1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe	30
PID 1956 wrote to memory of 2500	1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe	30
PID 1956 wrote to memory of 2500	1956	234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe	30
PID 2500 wrote to memory of 2388	2500	explorer.exe	31
PID 2500 wrote to memory of 2388	2500	explorer.exe	31
PID 2500 wrote to memory of 2388	2500	explorer.exe	31
PID 2500 wrote to memory of 2388	2500	explorer.exe	31
PID 2388 wrote to memory of 2908	2388	spoolsv.exe	32
PID 2388 wrote to memory of 2908	2388	spoolsv.exe	32
PID 2388 wrote to memory of 2908	2388	spoolsv.exe	32
PID 2388 wrote to memory of 2908	2388	spoolsv.exe	32
PID 2908 wrote to memory of 2724	2908	svchost.exe	33
PID 2908 wrote to memory of 2724	2908	svchost.exe	33
PID 2908 wrote to memory of 2724	2908	svchost.exe	33
PID 2908 wrote to memory of 2724	2908	svchost.exe	33
PID 2500 wrote to memory of 2736	2500	explorer.exe	34
PID 2500 wrote to memory of 2736	2500	explorer.exe	34
PID 2500 wrote to memory of 2736	2500	explorer.exe	34
PID 2500 wrote to memory of 2736	2500	explorer.exe	34
PID 2908 wrote to memory of 2856	2908	svchost.exe	35
PID 2908 wrote to memory of 2856	2908	svchost.exe	35
PID 2908 wrote to memory of 2856	2908	svchost.exe	35
PID 2908 wrote to memory of 2856	2908	svchost.exe	35
PID 2908 wrote to memory of 2812	2908	svchost.exe	39
PID 2908 wrote to memory of 2812	2908	svchost.exe	39
PID 2908 wrote to memory of 2812	2908	svchost.exe	39
PID 2908 wrote to memory of 2812	2908	svchost.exe	39
PID 2908 wrote to memory of 580	2908	svchost.exe	41
PID 2908 wrote to memory of 580	2908	svchost.exe	41
PID 2908 wrote to memory of 580	2908	svchost.exe	41
PID 2908 wrote to memory of 580	2908	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.exe
"C:\Users\Admin\AppData\Local\Temp\234affae1e0c38c977b55959972e627e6df25af817d65b35eb2a0304a26f690f.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:1956
- \??\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:2500
- - \??\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:2388
  - - \??\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:2908
    - - \??\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:2724
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:24 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2856
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:25 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2812
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:26 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:580
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2736

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
d739417ee850eca3384c502aa2d9591d

SHA1
a429891394828719b3661d5ca11086ab79d90f9b

SHA256
456e0284db699610ab49d81a7113a6af9b208ae7cb3f87f565dd2314723ff6fd

SHA512
4357fa6889b060d6757f75b488135d13a1eb0a59314608e090f17e45cd24d2c915d0c2400c5b6112c3299cc92801b9c71faf5073de41dd38de80c8f0eae4947b

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
206KB

MD5
8255f40feec017695a9262a3c9775a15

SHA1
2e027f62b6290e136846623f6518cf94d679deb6

SHA256
034d0044fdd872ba8097798c702473232e8fee28a5878ad600301c120257cdd9

SHA512
9348c60de58192e8f1753048900215904f3b061721eeb2bb31961d0b3ae05e0b6c11659a619313a1ac7f156fefe9641f3c5e542a1c63d4142420781008c0ca2a

Download Submit
\Windows\Resources\svchost.exe

Filesize
206KB

MD5
b17d5b7217db225cc671b77610329be6

SHA1
ed083bc1bc5e8d7622ba39442058235cf9ea7faa

SHA256
280329eb200b8984c4bfd3b97b086e3a05a1d0a7b57127419d6a31c116e972d8

SHA512
14ac5296e1eebfbd91764a4d18da874ac9d4b7f3d92280cfc331771db4b0ea7ec9f8dbeaba5256df4b60be46d2cf420981aa619508b4b6ad03dccb2023fc6f1f

Download Submit
memory/1956-13-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/1956-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1956-12-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/1956-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2388-41-0x00000000005D0000-0x00000000005FF000-memory.dmp

Filesize
188KB

Download
memory/2388-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2500-27-0x0000000000430000-0x000000000045F000-memory.dmp

Filesize
188KB

Download
memory/2500-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2724-54-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2908-50-0x00000000023C0000-0x00000000023EF000-memory.dmp

Filesize
188KB

Download
memory/2908-58-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download