dd4ce57ed4b1f3e23e7a618534e7e47137e21f7afb1c10f368b4258994f65ff7

Analysis

max time kernel
151s
max time network
122s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 18:34

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General

Target

NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
Size

135KB
MD5

272996c13790ce23f5a06662dc3c5280
SHA1

e71f00f99de8042a914ffaa9c4a9c87122f83e05
SHA256

dd4ce57ed4b1f3e23e7a618534e7e47137e21f7afb1c10f368b4258994f65ff7
SHA512

3dda42c6b7fbcf714eb605659d9720b11426aba8072a4b517082cf184f2d886db427e2de8a678b0f8fe55f947b779ff55d1aac769b7c18a02f92e6da86938523
SSDEEP

1536:XfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbg+3:XVqoCl/YgjxEufVU0TbTyDDalR3

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-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2136	explorer.exe
2632	spoolsv.exe
2724	svchost.exe
2684	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2136	explorer.exe
2632	spoolsv.exe
2724	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.272996c13790ce23f5a06662dc3c5280_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
2704	schtasks.exe
1700	schtasks.exe
2416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2724	svchost.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2724	svchost.exe
2724	svchost.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2724	svchost.exe
2136	explorer.exe
2724	svchost.exe
2724	svchost.exe
2136	explorer.exe
2136	explorer.exe
2724	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2136	explorer.exe
2724	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
2136	explorer.exe
2136	explorer.exe
2632	spoolsv.exe
2632	spoolsv.exe
2724	svchost.exe
2724	svchost.exe
2684	spoolsv.exe
2684	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2136	2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe	28
PID 2376 wrote to memory of 2136	2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe	28
PID 2376 wrote to memory of 2136	2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe	28
PID 2376 wrote to memory of 2136	2376	NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe	28
PID 2136 wrote to memory of 2632	2136	explorer.exe	29
PID 2136 wrote to memory of 2632	2136	explorer.exe	29
PID 2136 wrote to memory of 2632	2136	explorer.exe	29
PID 2136 wrote to memory of 2632	2136	explorer.exe	29
PID 2632 wrote to memory of 2724	2632	spoolsv.exe	30
PID 2632 wrote to memory of 2724	2632	spoolsv.exe	30
PID 2632 wrote to memory of 2724	2632	spoolsv.exe	30
PID 2632 wrote to memory of 2724	2632	spoolsv.exe	30
PID 2724 wrote to memory of 2684	2724	svchost.exe	31
PID 2724 wrote to memory of 2684	2724	svchost.exe	31
PID 2724 wrote to memory of 2684	2724	svchost.exe	31
PID 2724 wrote to memory of 2684	2724	svchost.exe	31
PID 2136 wrote to memory of 2796	2136	explorer.exe	32
PID 2136 wrote to memory of 2796	2136	explorer.exe	32
PID 2136 wrote to memory of 2796	2136	explorer.exe	32
PID 2136 wrote to memory of 2796	2136	explorer.exe	32
PID 2724 wrote to memory of 2704	2724	svchost.exe	33
PID 2724 wrote to memory of 2704	2724	svchost.exe	33
PID 2724 wrote to memory of 2704	2724	svchost.exe	33
PID 2724 wrote to memory of 2704	2724	svchost.exe	33
PID 2724 wrote to memory of 1700	2724	svchost.exe	38
PID 2724 wrote to memory of 1700	2724	svchost.exe	38
PID 2724 wrote to memory of 1700	2724	svchost.exe	38
PID 2724 wrote to memory of 1700	2724	svchost.exe	38
PID 2724 wrote to memory of 2416	2724	svchost.exe	40
PID 2724 wrote to memory of 2416	2724	svchost.exe	40
PID 2724 wrote to memory of 2416	2724	svchost.exe	40
PID 2724 wrote to memory of 2416	2724	svchost.exe	40

C:\Users\Admin\AppData\Local\Temp\NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.272996c13790ce23f5a06662dc3c5280_JC.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2376
- \??\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:2136
- - \??\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:2632
  - - \??\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:2724
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:2684
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:45 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2704
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:46 /f
        5⤵
        Creates scheduled task(s)
        
        PID:1700
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:47 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2416
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2796

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
b9de906399139e7a2eafedb8943e9fc8

SHA1
e4ea234c80e2b602e77e2c872a5c8ec90d1fb58f

SHA256
f65964895bfbaf582e9b0a3758dc4df6057abbff968822fa3e62911709ad65d3

SHA512
1366e3d73eb5d2a91fa84bd855f68913a68e577e386a889a060a8d62be3ded7cb279142b1500c3701a6019175d3e1cbac9cf9e53209f2a30682f6fdc8ea9b620

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

Filesize
135KB

MD5
a963e57754ce00a2bd0df58b89920f81

SHA1
25c0ca86121129d9e7c62543f496435c4bd4b2bc

SHA256
32281caa2a03f4704abb785c68357f29b6ff9d61d1aaa4cad8f16b71194d33dc

SHA512
70c95e6547827cecf8a8ebe7e6ccf804b75d706bcec212eb707ec3255ed0c0e4f7de71a2b6008fda47a8bcddd413157bc45b67409cc41563abc1633d1f3482b4

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

Filesize
135KB

MD5
a963e57754ce00a2bd0df58b89920f81

SHA1
25c0ca86121129d9e7c62543f496435c4bd4b2bc

SHA256
32281caa2a03f4704abb785c68357f29b6ff9d61d1aaa4cad8f16b71194d33dc

SHA512
70c95e6547827cecf8a8ebe7e6ccf804b75d706bcec212eb707ec3255ed0c0e4f7de71a2b6008fda47a8bcddd413157bc45b67409cc41563abc1633d1f3482b4

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

Filesize
135KB

MD5
a963e57754ce00a2bd0df58b89920f81

SHA1
25c0ca86121129d9e7c62543f496435c4bd4b2bc

SHA256
32281caa2a03f4704abb785c68357f29b6ff9d61d1aaa4cad8f16b71194d33dc

SHA512
70c95e6547827cecf8a8ebe7e6ccf804b75d706bcec212eb707ec3255ed0c0e4f7de71a2b6008fda47a8bcddd413157bc45b67409cc41563abc1633d1f3482b4

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

Filesize
135KB

MD5
90f62f207f2afe5307baa4e2664e658a

SHA1
4cf063dbf1e51488ee07b4e9acbd3e5a4bc607a4

SHA256
41847f73886b5ad212ad1fcab9190f6fd621995701a47443502fc5c02021c61e

SHA512
b87ea41a666ab21234f181e7dc8c590e7c17167cccae7ede162107bd12f05d99dfa4f912864aa59436a37d84d2a7bd49e6d81b0a6623038ee79e563992e17856

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

Filesize
135KB

MD5
a963e57754ce00a2bd0df58b89920f81

SHA1
25c0ca86121129d9e7c62543f496435c4bd4b2bc

SHA256
32281caa2a03f4704abb785c68357f29b6ff9d61d1aaa4cad8f16b71194d33dc

SHA512
70c95e6547827cecf8a8ebe7e6ccf804b75d706bcec212eb707ec3255ed0c0e4f7de71a2b6008fda47a8bcddd413157bc45b67409cc41563abc1633d1f3482b4

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

Filesize
135KB

MD5
90f62f207f2afe5307baa4e2664e658a

SHA1
4cf063dbf1e51488ee07b4e9acbd3e5a4bc607a4

SHA256
41847f73886b5ad212ad1fcab9190f6fd621995701a47443502fc5c02021c61e

SHA512
b87ea41a666ab21234f181e7dc8c590e7c17167cccae7ede162107bd12f05d99dfa4f912864aa59436a37d84d2a7bd49e6d81b0a6623038ee79e563992e17856

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

Filesize
135KB

MD5
b9de906399139e7a2eafedb8943e9fc8

SHA1
e4ea234c80e2b602e77e2c872a5c8ec90d1fb58f

SHA256
f65964895bfbaf582e9b0a3758dc4df6057abbff968822fa3e62911709ad65d3

SHA512
1366e3d73eb5d2a91fa84bd855f68913a68e577e386a889a060a8d62be3ded7cb279142b1500c3701a6019175d3e1cbac9cf9e53209f2a30682f6fdc8ea9b620

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

Filesize
135KB

MD5
b9de906399139e7a2eafedb8943e9fc8

SHA1
e4ea234c80e2b602e77e2c872a5c8ec90d1fb58f

SHA256
f65964895bfbaf582e9b0a3758dc4df6057abbff968822fa3e62911709ad65d3

SHA512
1366e3d73eb5d2a91fa84bd855f68913a68e577e386a889a060a8d62be3ded7cb279142b1500c3701a6019175d3e1cbac9cf9e53209f2a30682f6fdc8ea9b620

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
a963e57754ce00a2bd0df58b89920f81

SHA1
25c0ca86121129d9e7c62543f496435c4bd4b2bc

SHA256
32281caa2a03f4704abb785c68357f29b6ff9d61d1aaa4cad8f16b71194d33dc

SHA512
70c95e6547827cecf8a8ebe7e6ccf804b75d706bcec212eb707ec3255ed0c0e4f7de71a2b6008fda47a8bcddd413157bc45b67409cc41563abc1633d1f3482b4

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
a963e57754ce00a2bd0df58b89920f81

SHA1
25c0ca86121129d9e7c62543f496435c4bd4b2bc

SHA256
32281caa2a03f4704abb785c68357f29b6ff9d61d1aaa4cad8f16b71194d33dc

SHA512
70c95e6547827cecf8a8ebe7e6ccf804b75d706bcec212eb707ec3255ed0c0e4f7de71a2b6008fda47a8bcddd413157bc45b67409cc41563abc1633d1f3482b4

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
90f62f207f2afe5307baa4e2664e658a

SHA1
4cf063dbf1e51488ee07b4e9acbd3e5a4bc607a4

SHA256
41847f73886b5ad212ad1fcab9190f6fd621995701a47443502fc5c02021c61e

SHA512
b87ea41a666ab21234f181e7dc8c590e7c17167cccae7ede162107bd12f05d99dfa4f912864aa59436a37d84d2a7bd49e6d81b0a6623038ee79e563992e17856

Download Submit
memory/2136-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2376-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2376-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2632-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2684-39-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2724-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download