9a88864e3c87f405002960fa5bb710f486e15e7af8c7c2a0a64e6ff4957233f8

Analysis

max time kernel
181s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
07/10/2023, 14:18

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General

Target

NEAS.system32exe_JC.exe
Size

9.9MB
MD5

25af599b04074298133944628227451a
SHA1

b23abea6f74e7ffd1fa05436fc952ac652d59342
SHA256

9a88864e3c87f405002960fa5bb710f486e15e7af8c7c2a0a64e6ff4957233f8
SHA512

5ee27fc0fb47a50c26da3804c482f218d239ce250a1f5a0b0b2dc6e4440ea961fa8f19b2d64f37478d807b944d864da712614584825f29832faaa09cac2c0573
SSDEEP

196608:5TYReKrNPFho7UzsyNhaD3fqYz08tHihjnwFXokW8oHDt+:F6DrNPFiksyYI8tkwZoklsx+

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-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 6 IoCs

pid	Process
3640	neas.system32exe_jc.exe
1696	icsys.icn.exe
392	explorer.exe
2420	spoolsv.exe
1664	svchost.exe
4912	spoolsv.exe

Loads dropped DLL 2 IoCs

pid	Process
3640	neas.system32exe_jc.exe
3640	neas.system32exe_jc.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"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\System32\d3dx11_43.dll	neas.system32exe_jc.exe
File created	C:\Windows\System32\d3dcompiler_43.dll	neas.system32exe_jc.exe
File created	C:\Windows\System32\d3dx9_43.dll	neas.system32exe_jc.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3640	neas.system32exe_jc.exe
3640	neas.system32exe_jc.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
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
File opened for modification	C:\Windows\Resources\Themes\icsys.icn.exe	NEAS.system32exe_JC.exe
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	icsys.icn.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
3640	neas.system32exe_jc.exe
3640	neas.system32exe_jc.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
1696	icsys.icn.exe

Suspicious behavior: GetForegroundWindowSpam 3 IoCs

pid	Process
392	explorer.exe
1664	svchost.exe
3640	neas.system32exe_jc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3640	neas.system32exe_jc.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
4536	NEAS.system32exe_JC.exe
4536	NEAS.system32exe_JC.exe
1696	icsys.icn.exe
1696	icsys.icn.exe
392	explorer.exe
392	explorer.exe
2420	spoolsv.exe
2420	spoolsv.exe
1664	svchost.exe
1664	svchost.exe
4912	spoolsv.exe
4912	spoolsv.exe
3640	neas.system32exe_jc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 3640	4536	NEAS.system32exe_JC.exe	89
PID 4536 wrote to memory of 3640	4536	NEAS.system32exe_JC.exe	89
PID 4536 wrote to memory of 1696	4536	NEAS.system32exe_JC.exe	91
PID 4536 wrote to memory of 1696	4536	NEAS.system32exe_JC.exe	91
PID 4536 wrote to memory of 1696	4536	NEAS.system32exe_JC.exe	91
PID 1696 wrote to memory of 392	1696	icsys.icn.exe	93
PID 1696 wrote to memory of 392	1696	icsys.icn.exe	93
PID 1696 wrote to memory of 392	1696	icsys.icn.exe	93
PID 392 wrote to memory of 2420	392	explorer.exe	94
PID 392 wrote to memory of 2420	392	explorer.exe	94
PID 392 wrote to memory of 2420	392	explorer.exe	94
PID 2420 wrote to memory of 1664	2420	spoolsv.exe	95
PID 2420 wrote to memory of 1664	2420	spoolsv.exe	95
PID 2420 wrote to memory of 1664	2420	spoolsv.exe	95
PID 1664 wrote to memory of 4912	1664	svchost.exe	96
PID 1664 wrote to memory of 4912	1664	svchost.exe	96
PID 1664 wrote to memory of 4912	1664	svchost.exe	96

C:\Users\Admin\AppData\Local\Temp\NEAS.system32exe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.system32exe_JC.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4536
- \??\c:\users\admin\appdata\local\temp\neas.system32exe_jc.exe
  c:\users\admin\appdata\local\temp\neas.system32exe_jc.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3640
- C:\Windows\Resources\Themes\icsys.icn.exe
  C:\Windows\Resources\Themes\icsys.icn.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1696
- - \??\c:\windows\resources\themes\explorer.exe
    c:\windows\resources\themes\explorer.exe
    3⤵
    - 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
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:392
  - - \??\c:\windows\resources\spoolsv.exe
      c:\windows\resources\spoolsv.exe SE
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2420
    - - \??\c:\windows\resources\svchost.exe
        
        c:\windows\resources\svchost.exe
        5⤵
        Modifies visiblity of hidden/system files in Explorer
        Executes dropped EXE
        Adds Run key to start application
        Drops file in System32 directory
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1664
      - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        6⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:4912

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\neas.system32exe_jc.exe

Filesize
9.8MB

MD5
4aac2cfbd4dab7ab69ddd2c35418965a

SHA1
ef11af4171a73774ef4224bddaf561fcb9791176

SHA256
bb60c30a3d8781b377268997847f7c1726d6c94c3b0c38dd506954b21167fd49

SHA512
15a0e1f26ea331a0257cb029a4f6b6539117f7941cc6967fda4f9dc5560b626d9e22a0c4e812399d83e8a86e1d32bb01ec0bf008d15759381e7c538f252338cc

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

Filesize
135KB

MD5
f16cacd3c5dcb980a76b11288f6ad17a

SHA1
64aba1f299644eae582b51edbc680d3d2c91999f

SHA256
99eee139e67a177cb3637666e00a92bd1cad6b508b964119eb591703e7dbb4f2

SHA512
580f06773744d5c5d6c1ae958dc682ef01d0a555bb9d0cb3367761c2642a2a8409922c36de160e1dcd70dc8bc3766c847d361addf3a656f28c04a1bf8971b420

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

Filesize
135KB

MD5
f16cacd3c5dcb980a76b11288f6ad17a

SHA1
64aba1f299644eae582b51edbc680d3d2c91999f

SHA256
99eee139e67a177cb3637666e00a92bd1cad6b508b964119eb591703e7dbb4f2

SHA512
580f06773744d5c5d6c1ae958dc682ef01d0a555bb9d0cb3367761c2642a2a8409922c36de160e1dcd70dc8bc3766c847d361addf3a656f28c04a1bf8971b420

Download Submit
C:\Windows\Resources\Themes\icsys.icn.exe

Filesize
135KB

MD5
b93a0d03c077091f85927f9235ca525a

SHA1
e1593134b758dc8242a3647f11d941f1f5efaf40

SHA256
2138d1628d36f539ad872562fb2b29991fa2f2a667edabe357a4ec90f44493cc

SHA512
271e32b6d9f24dc09c35e29d36c2e8ba2ddb509fab744f84a3cdd7fcffbc720efab16dc9f6b7db33d79d519b72e55f0becd8980af7d36b1d548f6a1d366c6e9d

Download Submit
C:\Windows\Resources\Themes\icsys.icn.exe

Filesize
135KB

MD5
b93a0d03c077091f85927f9235ca525a

SHA1
e1593134b758dc8242a3647f11d941f1f5efaf40

SHA256
2138d1628d36f539ad872562fb2b29991fa2f2a667edabe357a4ec90f44493cc

SHA512
271e32b6d9f24dc09c35e29d36c2e8ba2ddb509fab744f84a3cdd7fcffbc720efab16dc9f6b7db33d79d519b72e55f0becd8980af7d36b1d548f6a1d366c6e9d

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

Filesize
135KB

MD5
dbd6216621eb62d6c9d062af16135fb5

SHA1
274699b6a5ce5d9b64369abd39716ee75cad9732

SHA256
db23a26f12a23286ffaf91e1bfcaf7c025e0e84082230e8ad47229233602473b

SHA512
a68e0c8e93ae5fdd9d0655b22f5024b37078181d013300b0bd611fad73f157ba39fb024c3b65c02f29dd9324b6796b4b5f10add6dbe702d1383120c60736eda3

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

Filesize
135KB

MD5
dbd6216621eb62d6c9d062af16135fb5

SHA1
274699b6a5ce5d9b64369abd39716ee75cad9732

SHA256
db23a26f12a23286ffaf91e1bfcaf7c025e0e84082230e8ad47229233602473b

SHA512
a68e0c8e93ae5fdd9d0655b22f5024b37078181d013300b0bd611fad73f157ba39fb024c3b65c02f29dd9324b6796b4b5f10add6dbe702d1383120c60736eda3

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

Filesize
135KB

MD5
892c44e0f5f201c40105f1e59e6d4d63

SHA1
ce06d105a68fc044cd7fd4411be807acff007dd2

SHA256
e19c3f413b7a7e63809b5f5aae02a81238c04bd4fe2cb47097a9c717911bfc8e

SHA512
7ad9d30dcca4b0c03e1b58a6de03bfc0bb39b2bcc44bcd621e2807905e214c6ad71531eb2dc531284d39870dc82c5453ad14a96115dabac3d46e13a8024048b6

Download Submit
C:\Windows\System32\d3dcompiler_43.dll

Filesize
2.4MB

MD5
ada0c39d4eacdc81fd84163a95d62079

SHA1
207321f1b449985b2d06ed50b989fa6259e4eb8e

SHA256
44c3a7e330b54a35a9efa015831392593aa02e7da1460be429d17c3644850e8a

SHA512
1afc63db5d2030b76abc19094fc9fef28cc6250bd265294647e65db81f13749c867722924460f7a6021c739f4057f95501f0322cdec28a2101bf94164557a1a5

Download Submit
C:\Windows\System32\d3dx11_43.dll

Filesize
270KB

MD5
9d6429f410597750b2dc2579b2347303

SHA1
e35acb15ea52f6cd0587b4ca8da0486b859fd048

SHA256
981e42629df751217406e7150477cddc853b79abd6a8568a1566298ed8f7bd59

SHA512
46cbfb1e22c3f469bdc80515560448f6f83607fd6974bb68b9c7f86ca10c69878f1312b32c81c0f57b931c43bad80bd46bdf26ab4ffb999abb0b73de27ad7c56

Download Submit
\??\c:\users\admin\appdata\local\temp\neas.system32exe_jc.exe

Filesize
9.8MB

MD5
4aac2cfbd4dab7ab69ddd2c35418965a

SHA1
ef11af4171a73774ef4224bddaf561fcb9791176

SHA256
bb60c30a3d8781b377268997847f7c1726d6c94c3b0c38dd506954b21167fd49

SHA512
15a0e1f26ea331a0257cb029a4f6b6539117f7941cc6967fda4f9dc5560b626d9e22a0c4e812399d83e8a86e1d32bb01ec0bf008d15759381e7c538f252338cc

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

Filesize
135KB

MD5
dbd6216621eb62d6c9d062af16135fb5

SHA1
274699b6a5ce5d9b64369abd39716ee75cad9732

SHA256
db23a26f12a23286ffaf91e1bfcaf7c025e0e84082230e8ad47229233602473b

SHA512
a68e0c8e93ae5fdd9d0655b22f5024b37078181d013300b0bd611fad73f157ba39fb024c3b65c02f29dd9324b6796b4b5f10add6dbe702d1383120c60736eda3

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

Filesize
135KB

MD5
892c44e0f5f201c40105f1e59e6d4d63

SHA1
ce06d105a68fc044cd7fd4411be807acff007dd2

SHA256
e19c3f413b7a7e63809b5f5aae02a81238c04bd4fe2cb47097a9c717911bfc8e

SHA512
7ad9d30dcca4b0c03e1b58a6de03bfc0bb39b2bcc44bcd621e2807905e214c6ad71531eb2dc531284d39870dc82c5453ad14a96115dabac3d46e13a8024048b6

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

Filesize
135KB

MD5
f16cacd3c5dcb980a76b11288f6ad17a

SHA1
64aba1f299644eae582b51edbc680d3d2c91999f

SHA256
99eee139e67a177cb3637666e00a92bd1cad6b508b964119eb591703e7dbb4f2

SHA512
580f06773744d5c5d6c1ae958dc682ef01d0a555bb9d0cb3367761c2642a2a8409922c36de160e1dcd70dc8bc3766c847d361addf3a656f28c04a1bf8971b420

Download Submit
memory/392-66-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1664-67-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1696-52-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1696-16-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2420-51-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3640-9-0x00007FFC03170000-0x00007FFC03172000-memory.dmp

Filesize
8KB

Download
memory/3640-55-0x0000000140000000-0x0000000141821000-memory.dmp

Filesize
24.1MB

Download
memory/3640-10-0x00007FFC03180000-0x00007FFC03182000-memory.dmp

Filesize
8KB

Download
memory/3640-60-0x0000000180000000-0x00000001803B3000-memory.dmp

Filesize
3.7MB

Download
memory/3640-62-0x0000000180000000-0x00000001803B3000-memory.dmp

Filesize
3.7MB

Download
memory/3640-63-0x0000000180000000-0x00000001803B3000-memory.dmp

Filesize
3.7MB

Download
memory/3640-64-0x0000000180000000-0x00000001803B3000-memory.dmp

Filesize
3.7MB

Download
memory/3640-65-0x0000000180000000-0x00000001803B3000-memory.dmp

Filesize
3.7MB

Download
memory/3640-12-0x0000000140000000-0x0000000141821000-memory.dmp

Filesize
24.1MB

Download
memory/3640-11-0x0000000140000000-0x0000000141821000-memory.dmp

Filesize
24.1MB

Download
memory/4536-53-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4536-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4912-50-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download