4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 22:48

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General

Target

4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
Size

135KB
MD5

88523c116bf58aaf5019cd52e007216f
SHA1

3e7434a331d28f30c23db36718e6cab8ba63b447
SHA256

4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c
SHA512

ec1b942a4112ffaffb173d6c7489149d087810239f22ee08598315a9bfa06730e231c4f7c9570384a54f66f753c87067e70325d14fc618c287196f92a8011ec4
SSDEEP

1536:4fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVuHzXIAAAAAAAAA1:4VqoCl/YgjxEufVU0TbTyDDalcHzXx

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2644	explorer.exe
1216	spoolsv.exe
2760	svchost.exe
2772	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2644	explorer.exe
1216	spoolsv.exe
2760	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\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
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

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	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.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
2916	schtasks.exe
2552	schtasks.exe
3032	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2644	explorer.exe
2644	explorer.exe
2644	explorer.exe
2760	svchost.exe
2760	svchost.exe
2644	explorer.exe
2760	svchost.exe
2644	explorer.exe
2760	svchost.exe
2644	explorer.exe
2760	svchost.exe
2644	explorer.exe
2760	svchost.exe
2644	explorer.exe
2760	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2644	explorer.exe
2760	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
2644	explorer.exe
2644	explorer.exe
1216	spoolsv.exe
1216	spoolsv.exe
2760	svchost.exe
2760	svchost.exe
2772	spoolsv.exe
2772	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2644	2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe	29
PID 2304 wrote to memory of 2644	2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe	29
PID 2304 wrote to memory of 2644	2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe	29
PID 2304 wrote to memory of 2644	2304	4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe	29
PID 2644 wrote to memory of 1216	2644	explorer.exe	30
PID 2644 wrote to memory of 1216	2644	explorer.exe	30
PID 2644 wrote to memory of 1216	2644	explorer.exe	30
PID 2644 wrote to memory of 1216	2644	explorer.exe	30
PID 1216 wrote to memory of 2760	1216	spoolsv.exe	31
PID 1216 wrote to memory of 2760	1216	spoolsv.exe	31
PID 1216 wrote to memory of 2760	1216	spoolsv.exe	31
PID 1216 wrote to memory of 2760	1216	spoolsv.exe	31
PID 2760 wrote to memory of 2772	2760	svchost.exe	32
PID 2760 wrote to memory of 2772	2760	svchost.exe	32
PID 2760 wrote to memory of 2772	2760	svchost.exe	32
PID 2760 wrote to memory of 2772	2760	svchost.exe	32
PID 2644 wrote to memory of 2932	2644	explorer.exe	33
PID 2644 wrote to memory of 2932	2644	explorer.exe	33
PID 2644 wrote to memory of 2932	2644	explorer.exe	33
PID 2644 wrote to memory of 2932	2644	explorer.exe	33
PID 2760 wrote to memory of 3032	2760	svchost.exe	34
PID 2760 wrote to memory of 3032	2760	svchost.exe	34
PID 2760 wrote to memory of 3032	2760	svchost.exe	34
PID 2760 wrote to memory of 3032	2760	svchost.exe	34
PID 2760 wrote to memory of 2916	2760	svchost.exe	37
PID 2760 wrote to memory of 2916	2760	svchost.exe	37
PID 2760 wrote to memory of 2916	2760	svchost.exe	37
PID 2760 wrote to memory of 2916	2760	svchost.exe	37
PID 2760 wrote to memory of 2552	2760	svchost.exe	39
PID 2760 wrote to memory of 2552	2760	svchost.exe	39
PID 2760 wrote to memory of 2552	2760	svchost.exe	39
PID 2760 wrote to memory of 2552	2760	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.exe
"C:\Users\Admin\AppData\Local\Temp\4f7ae903aeebcaf7f4c7da23a7856647122804922a8c50adf8c6e528d29fd20c.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:2304
- \??\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:2644
- - \??\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:1216
  - - \??\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:2760
    - - \??\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:2772
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:50 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:3032
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:51 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2916
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:52 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2552
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2932

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
464491c09cb6edfa8bf31d8e0a38f546

SHA1
56d1e34869edbaef9f784062479f72cbd14f1eb7

SHA256
35d6c3f78137046b090fa5b4889b3e6e64cda7c000182bf81aa255b3492e20cb

SHA512
6e7c80a2c7411540f9b5eba7768aaaac419295577c59e34a1cbadc65156548fe9c0ea027f954591c00b1a0a4b8768866c7ddec79edfac275bc64c00b459cf6b6

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

Filesize
135KB

MD5
f84f82adf14e39e692912eff3b495362

SHA1
9838852e29bc6da7e73a9262ac212cfb2ac94dfb

SHA256
2ed632d75cd8cf979bf4a7f7dc8ff4ee174110e73f2a51c2cde50c1a2052e33f

SHA512
ae59b5332cf7d54142896034b8e3d0f52fb71445dcf137b3b08b2e417946a07cc922a3bd785949a6470a6aa93ca520e72f13b82242618c21de017ea581f0da2b

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
06b1d5a3f88b1dc2a069fd4454d8a1c3

SHA1
c7c7f190eb85654f4003e80af011061ab812feaf

SHA256
5a09d4938978bae984784617a4789c6a74e1b9f5fad14626d62971ceb5061cc2

SHA512
57b46febfceac91732efde74528d3f51c6a5c3da0f48f02b13d4eb7fdb5b9ae35090e4d5a1e19aee61988df3e868db8839d2ff36d31ee1050c474c6d0a89a583

Download Submit
memory/1216-29-0x0000000000290000-0x00000000002AF000-memory.dmp

Filesize
124KB

Download
memory/1216-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2304-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2304-9-0x00000000003D0000-0x00000000003EF000-memory.dmp

Filesize
124KB

Download
memory/2304-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2644-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2760-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2760-46-0x0000000000290000-0x00000000002AF000-memory.dmp

Filesize
124KB

Download
memory/2772-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download