a8610c46777dbdebb6813199f19ce94a3b225f6f69326985854d9cdde68f04ae

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
18/08/2024, 02:18

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General

Target

532ad1dca5ee84d4e717c45b39bb5480N.exe
Size

135KB
MD5

532ad1dca5ee84d4e717c45b39bb5480
SHA1

e4fde9f8d9499513ddeda2c5a786592394358b5d
SHA256

a8610c46777dbdebb6813199f19ce94a3b225f6f69326985854d9cdde68f04ae
SHA512

e57a419418a9c3bd3167a1beed0dae4c42df99a4e0e4c7fef5c4f93b8c25d302441f7069bd33da5362d8a2da033e166f189bf86a0c36467cf263781bcb2cd526
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVA8:UVqoCl/YgjxEufVU0TbTyDDali8

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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2800	explorer.exe
2832	spoolsv.exe
2828	svchost.exe
2700	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2800	explorer.exe
2832	spoolsv.exe
2828	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"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.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	532ad1dca5ee84d4e717c45b39bb5480N.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	532ad1dca5ee84d4e717c45b39bb5480N.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
2976	schtasks.exe
2596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2800	explorer.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2828	svchost.exe
2800	explorer.exe
2828	svchost.exe
2800	explorer.exe
2828	svchost.exe
2800	explorer.exe
2828	svchost.exe
2800	explorer.exe
2800	explorer.exe
2828	svchost.exe
2828	svchost.exe
2800	explorer.exe
2800	explorer.exe
2828	svchost.exe
2800	explorer.exe
2828	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2800	explorer.exe
2828	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2636	532ad1dca5ee84d4e717c45b39bb5480N.exe
2800	explorer.exe
2800	explorer.exe
2832	spoolsv.exe
2832	spoolsv.exe
2828	svchost.exe
2828	svchost.exe
2700	spoolsv.exe
2700	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2800	2636	532ad1dca5ee84d4e717c45b39bb5480N.exe	30
PID 2636 wrote to memory of 2800	2636	532ad1dca5ee84d4e717c45b39bb5480N.exe	30
PID 2636 wrote to memory of 2800	2636	532ad1dca5ee84d4e717c45b39bb5480N.exe	30
PID 2636 wrote to memory of 2800	2636	532ad1dca5ee84d4e717c45b39bb5480N.exe	30
PID 2800 wrote to memory of 2832	2800	explorer.exe	31
PID 2800 wrote to memory of 2832	2800	explorer.exe	31
PID 2800 wrote to memory of 2832	2800	explorer.exe	31
PID 2800 wrote to memory of 2832	2800	explorer.exe	31
PID 2832 wrote to memory of 2828	2832	spoolsv.exe	32
PID 2832 wrote to memory of 2828	2832	spoolsv.exe	32
PID 2832 wrote to memory of 2828	2832	spoolsv.exe	32
PID 2832 wrote to memory of 2828	2832	spoolsv.exe	32
PID 2828 wrote to memory of 2700	2828	svchost.exe	33
PID 2828 wrote to memory of 2700	2828	svchost.exe	33
PID 2828 wrote to memory of 2700	2828	svchost.exe	33
PID 2828 wrote to memory of 2700	2828	svchost.exe	33
PID 2800 wrote to memory of 2604	2800	explorer.exe	34
PID 2800 wrote to memory of 2604	2800	explorer.exe	34
PID 2800 wrote to memory of 2604	2800	explorer.exe	34
PID 2800 wrote to memory of 2604	2800	explorer.exe	34
PID 2828 wrote to memory of 2976	2828	svchost.exe	35
PID 2828 wrote to memory of 2976	2828	svchost.exe	35
PID 2828 wrote to memory of 2976	2828	svchost.exe	35
PID 2828 wrote to memory of 2976	2828	svchost.exe	35
PID 2828 wrote to memory of 2596	2828	svchost.exe	38
PID 2828 wrote to memory of 2596	2828	svchost.exe	38
PID 2828 wrote to memory of 2596	2828	svchost.exe	38
PID 2828 wrote to memory of 2596	2828	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\532ad1dca5ee84d4e717c45b39bb5480N.exe
"C:\Users\Admin\AppData\Local\Temp\532ad1dca5ee84d4e717c45b39bb5480N.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:2636
- \??\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:2800
- - \??\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:2832
  - - \??\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:2828
    - - \??\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:2700
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:20 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2976
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:21 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2596
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2604

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
5657472f50ffc45196e93599885d192e

SHA1
929642867822da5e2bdda36125c9d5d2c85e3a35

SHA256
9e53cd46156cddb4ad88d0fcb0ed1bbe21c53e1743cdf102cd1423a2a2a858c0

SHA512
c73708c59dffbda0c1a000cc8c32b41501748086caafb5c1624c938358a0489819adef3509d4258a61c986775a2e8751a1e666e3ec7efbcf06058ae86586f60e

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

Filesize
135KB

MD5
786750dbc9724b546a986163ddd3d989

SHA1
94b909adcbb0132176146c71054207df276dc4c5

SHA256
ff54d36af3b0feb1cded2f1b7a5a14834d49a15b71fedbb0942f562b52db4fc7

SHA512
f778e8ab8583a6048e88a4b03e6e58f6e08ab29244aea30cdf549d5c7d30bb9ca82025fec5b05974f345380d8f771a4c8ca2176baf35a36b1db2b079e19a290f

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
fabc42918a39e2fb79d68c33a92d60e6

SHA1
d026b84720d3e5f603cfb6d181eb09d5ad659a26

SHA256
3702b8f63d23f2372e0189a4c6198ba4f2bdf292834c3c36f23505fdc629e9fa

SHA512
52b4777b382840694f6a866b96133751d3175e807bbcf1b156142e6e8b421a530b33070411be8222be4c77fa0fde5298aec349d13bd6cdd925452358369cf1b1

Download Submit
memory/2636-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2636-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2700-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2800-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2828-35-0x0000000000450000-0x000000000046F000-memory.dmp

Filesize
124KB

Download
memory/2828-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2828-45-0x0000000000450000-0x000000000046F000-memory.dmp

Filesize
124KB

Download
memory/2832-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download