b3de53d4867b951188d42690f40c29709d295e471314920955e9fd7bdc179b19

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
03/11/2023, 20:00

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General

Target

NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
Size

135KB
MD5

4a23f7c70d80bd12a07c463783b72120
SHA1

116821b3147601c7605218a02e920e07238d199e
SHA256

b3de53d4867b951188d42690f40c29709d295e471314920955e9fd7bdc179b19
SHA512

7524fb8df27887f6660209378daafe96bc998b912ac2120f0f7e9be53c0358803dd32c68dcadb4f4dde8fc97c645de01df8c9e88f328a3ed3bce08ea57d63c47
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbViSM:UVqoCl/YgjxEufVU0TbTyDDal/M

Score

10^/10

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-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2964	explorer.exe
2600	spoolsv.exe
2988	svchost.exe
2668	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2964	explorer.exe
2600	spoolsv.exe
2988	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	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.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

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1008	schtasks.exe
2944	schtasks.exe
928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2988	svchost.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2964	explorer.exe
2988	svchost.exe
2988	svchost.exe
2964	explorer.exe
2964	explorer.exe
2988	svchost.exe
2964	explorer.exe
2988	svchost.exe
2964	explorer.exe
2988	svchost.exe
2964	explorer.exe
2988	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2964	explorer.exe
2988	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
2964	explorer.exe
2964	explorer.exe
2600	spoolsv.exe
2600	spoolsv.exe
2988	svchost.exe
2988	svchost.exe
2668	spoolsv.exe
2668	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2964	2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe	28
PID 2880 wrote to memory of 2964	2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe	28
PID 2880 wrote to memory of 2964	2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe	28
PID 2880 wrote to memory of 2964	2880	NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe	28
PID 2964 wrote to memory of 2600	2964	explorer.exe	29
PID 2964 wrote to memory of 2600	2964	explorer.exe	29
PID 2964 wrote to memory of 2600	2964	explorer.exe	29
PID 2964 wrote to memory of 2600	2964	explorer.exe	29
PID 2600 wrote to memory of 2988	2600	spoolsv.exe	30
PID 2600 wrote to memory of 2988	2600	spoolsv.exe	30
PID 2600 wrote to memory of 2988	2600	spoolsv.exe	30
PID 2600 wrote to memory of 2988	2600	spoolsv.exe	30
PID 2988 wrote to memory of 2668	2988	svchost.exe	31
PID 2988 wrote to memory of 2668	2988	svchost.exe	31
PID 2988 wrote to memory of 2668	2988	svchost.exe	31
PID 2988 wrote to memory of 2668	2988	svchost.exe	31
PID 2964 wrote to memory of 2516	2964	explorer.exe	32
PID 2964 wrote to memory of 2516	2964	explorer.exe	32
PID 2964 wrote to memory of 2516	2964	explorer.exe	32
PID 2964 wrote to memory of 2516	2964	explorer.exe	32
PID 2988 wrote to memory of 2944	2988	svchost.exe	33
PID 2988 wrote to memory of 2944	2988	svchost.exe	33
PID 2988 wrote to memory of 2944	2988	svchost.exe	33
PID 2988 wrote to memory of 2944	2988	svchost.exe	33
PID 2988 wrote to memory of 928	2988	svchost.exe	38
PID 2988 wrote to memory of 928	2988	svchost.exe	38
PID 2988 wrote to memory of 928	2988	svchost.exe	38
PID 2988 wrote to memory of 928	2988	svchost.exe	38
PID 2988 wrote to memory of 1008	2988	svchost.exe	40
PID 2988 wrote to memory of 1008	2988	svchost.exe	40
PID 2988 wrote to memory of 1008	2988	svchost.exe	40
PID 2988 wrote to memory of 1008	2988	svchost.exe	40

C:\Users\Admin\AppData\Local\Temp\NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.4a23f7c70d80bd12a07c463783b72120_JC.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2880
- \??\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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2964
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2600
  - - \??\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
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2988
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:2668
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:02 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2944
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:03 /f
        5⤵
        Creates scheduled task(s)
        
        PID:928
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:04 /f
        5⤵
        Creates scheduled task(s)
        
        PID:1008
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
9acd270e86075881a37cf437670278ad

SHA1
24614354349b4f7cae61e3524aaca9daf4aba97f

SHA256
b52a87a8e10571c6c301cd7206ba326797ec531fb69668d27d080849647fab59

SHA512
cab075edcce8cb1952206ef5b8dc3ae02a05ead9876a14fec0d9b6916a46b10e191790ebfffa2b91379fa1db0136445682ef8e70dd4d05943c5f74e888896c81

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

Filesize
135KB

MD5
9ca76a86f4ec8666b32fdf0c04115314

SHA1
241356bec00bec4b238b7f09dd058080fe1c3443

SHA256
bd74d161b849fb1b469c7196a81d413f5813e694d200771edb1019f845ed20f4

SHA512
d0676480e68c33430fb8e007ada1619cd2c9ffda21bcfef605e707260f801776cdc8718e7a7c3c86ec68d9089acb585d02417a09ea94cf4a0afda21dde791088

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

Filesize
135KB

MD5
9ca76a86f4ec8666b32fdf0c04115314

SHA1
241356bec00bec4b238b7f09dd058080fe1c3443

SHA256
bd74d161b849fb1b469c7196a81d413f5813e694d200771edb1019f845ed20f4

SHA512
d0676480e68c33430fb8e007ada1619cd2c9ffda21bcfef605e707260f801776cdc8718e7a7c3c86ec68d9089acb585d02417a09ea94cf4a0afda21dde791088

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

Filesize
135KB

MD5
9ca76a86f4ec8666b32fdf0c04115314

SHA1
241356bec00bec4b238b7f09dd058080fe1c3443

SHA256
bd74d161b849fb1b469c7196a81d413f5813e694d200771edb1019f845ed20f4

SHA512
d0676480e68c33430fb8e007ada1619cd2c9ffda21bcfef605e707260f801776cdc8718e7a7c3c86ec68d9089acb585d02417a09ea94cf4a0afda21dde791088

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

Filesize
135KB

MD5
de9e6ef4354eb831c72b8b3c83f1c48d

SHA1
cf9fd619d352a3f94e2848ee90562845cf376e69

SHA256
be867c55950e9aaa130dda7da4732abe6cb3942f7daa054e604ea947ea7e0840

SHA512
d70c857c31664e3ba9f5f862bae1c20205c0588eae83ffd8f7e9152b2a5d722a055cb27c6926c89b08e1df94281c521d91146e4af66a7a85eed515f84f513bf0

Download Submit
\??\c:\windows\resources\spoolsv.exe

Filesize
135KB

MD5
9ca76a86f4ec8666b32fdf0c04115314

SHA1
241356bec00bec4b238b7f09dd058080fe1c3443

SHA256
bd74d161b849fb1b469c7196a81d413f5813e694d200771edb1019f845ed20f4

SHA512
d0676480e68c33430fb8e007ada1619cd2c9ffda21bcfef605e707260f801776cdc8718e7a7c3c86ec68d9089acb585d02417a09ea94cf4a0afda21dde791088

Download Submit
\??\c:\windows\resources\svchost.exe

Filesize
135KB

MD5
de9e6ef4354eb831c72b8b3c83f1c48d

SHA1
cf9fd619d352a3f94e2848ee90562845cf376e69

SHA256
be867c55950e9aaa130dda7da4732abe6cb3942f7daa054e604ea947ea7e0840

SHA512
d70c857c31664e3ba9f5f862bae1c20205c0588eae83ffd8f7e9152b2a5d722a055cb27c6926c89b08e1df94281c521d91146e4af66a7a85eed515f84f513bf0

Download Submit
\??\c:\windows\resources\themes\explorer.exe

Filesize
135KB

MD5
9acd270e86075881a37cf437670278ad

SHA1
24614354349b4f7cae61e3524aaca9daf4aba97f

SHA256
b52a87a8e10571c6c301cd7206ba326797ec531fb69668d27d080849647fab59

SHA512
cab075edcce8cb1952206ef5b8dc3ae02a05ead9876a14fec0d9b6916a46b10e191790ebfffa2b91379fa1db0136445682ef8e70dd4d05943c5f74e888896c81

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

Filesize
135KB

MD5
9acd270e86075881a37cf437670278ad

SHA1
24614354349b4f7cae61e3524aaca9daf4aba97f

SHA256
b52a87a8e10571c6c301cd7206ba326797ec531fb69668d27d080849647fab59

SHA512
cab075edcce8cb1952206ef5b8dc3ae02a05ead9876a14fec0d9b6916a46b10e191790ebfffa2b91379fa1db0136445682ef8e70dd4d05943c5f74e888896c81

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
9ca76a86f4ec8666b32fdf0c04115314

SHA1
241356bec00bec4b238b7f09dd058080fe1c3443

SHA256
bd74d161b849fb1b469c7196a81d413f5813e694d200771edb1019f845ed20f4

SHA512
d0676480e68c33430fb8e007ada1619cd2c9ffda21bcfef605e707260f801776cdc8718e7a7c3c86ec68d9089acb585d02417a09ea94cf4a0afda21dde791088

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
9ca76a86f4ec8666b32fdf0c04115314

SHA1
241356bec00bec4b238b7f09dd058080fe1c3443

SHA256
bd74d161b849fb1b469c7196a81d413f5813e694d200771edb1019f845ed20f4

SHA512
d0676480e68c33430fb8e007ada1619cd2c9ffda21bcfef605e707260f801776cdc8718e7a7c3c86ec68d9089acb585d02417a09ea94cf4a0afda21dde791088

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
de9e6ef4354eb831c72b8b3c83f1c48d

SHA1
cf9fd619d352a3f94e2848ee90562845cf376e69

SHA256
be867c55950e9aaa130dda7da4732abe6cb3942f7daa054e604ea947ea7e0840

SHA512
d70c857c31664e3ba9f5f862bae1c20205c0588eae83ffd8f7e9152b2a5d722a055cb27c6926c89b08e1df94281c521d91146e4af66a7a85eed515f84f513bf0

Download Submit
memory/2600-29-0x00000000002D0000-0x00000000002EF000-memory.dmp

Filesize
124KB

Download
memory/2600-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2668-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2880-8-0x0000000000280000-0x000000000029F000-memory.dmp

Filesize
124KB

Download
memory/2880-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2880-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2964-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2988-37-0x0000000000290000-0x00000000002AF000-memory.dmp

Filesize
124KB

Download
memory/2988-46-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2988-47-0x0000000000290000-0x00000000002AF000-memory.dmp

Filesize
124KB

Download