84fd0df9d663923def1df601513a04eb15dcb2ff900da32848e2399f27a6a6b1

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
02/11/2023, 16:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NEAS.79a1b90431319340535a9f40dba9ef90.exe
Size

135KB
MD5

79a1b90431319340535a9f40dba9ef90
SHA1

5ffccde270c41685f714add89d5555ae88519aac
SHA256

84fd0df9d663923def1df601513a04eb15dcb2ff900da32848e2399f27a6a6b1
SHA512

ae0eec8f1fee12618eb71467fd7c5ffca5a62ab4a676836cfb22b83a25dc8e72c05da3dbcf342044adc1bccd10e646352f1f8201aa94d0fdb0e72ae16ee47796
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVXH:UVqoCl/YgjxEufVU0TbTyDDalRH

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-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
1916	explorer.exe
2880	spoolsv.exe
2664	svchost.exe
2824	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
1916	explorer.exe
2880	spoolsv.exe
2664	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.79a1b90431319340535a9f40dba9ef90.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
2588	schtasks.exe
268	schtasks.exe
1456	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
2664	svchost.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
2664	svchost.exe
2664	svchost.exe
1916	explorer.exe
2664	svchost.exe
2664	svchost.exe
1916	explorer.exe
2664	svchost.exe
1916	explorer.exe
1916	explorer.exe
1916	explorer.exe
2664	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1916	explorer.exe
2664	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe
1916	explorer.exe
1916	explorer.exe
2880	spoolsv.exe
2880	spoolsv.exe
2664	svchost.exe
2664	svchost.exe
2824	spoolsv.exe
2824	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 1916	2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe	28
PID 2112 wrote to memory of 1916	2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe	28
PID 2112 wrote to memory of 1916	2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe	28
PID 2112 wrote to memory of 1916	2112	NEAS.79a1b90431319340535a9f40dba9ef90.exe	28
PID 1916 wrote to memory of 2880	1916	explorer.exe	29
PID 1916 wrote to memory of 2880	1916	explorer.exe	29
PID 1916 wrote to memory of 2880	1916	explorer.exe	29
PID 1916 wrote to memory of 2880	1916	explorer.exe	29
PID 2880 wrote to memory of 2664	2880	spoolsv.exe	30
PID 2880 wrote to memory of 2664	2880	spoolsv.exe	30
PID 2880 wrote to memory of 2664	2880	spoolsv.exe	30
PID 2880 wrote to memory of 2664	2880	spoolsv.exe	30
PID 2664 wrote to memory of 2824	2664	svchost.exe	31
PID 2664 wrote to memory of 2824	2664	svchost.exe	31
PID 2664 wrote to memory of 2824	2664	svchost.exe	31
PID 2664 wrote to memory of 2824	2664	svchost.exe	31
PID 1916 wrote to memory of 1904	1916	explorer.exe	32
PID 1916 wrote to memory of 1904	1916	explorer.exe	32
PID 1916 wrote to memory of 1904	1916	explorer.exe	32
PID 1916 wrote to memory of 1904	1916	explorer.exe	32
PID 2664 wrote to memory of 2588	2664	svchost.exe	33
PID 2664 wrote to memory of 2588	2664	svchost.exe	33
PID 2664 wrote to memory of 2588	2664	svchost.exe	33
PID 2664 wrote to memory of 2588	2664	svchost.exe	33
PID 2664 wrote to memory of 268	2664	svchost.exe	38
PID 2664 wrote to memory of 268	2664	svchost.exe	38
PID 2664 wrote to memory of 268	2664	svchost.exe	38
PID 2664 wrote to memory of 268	2664	svchost.exe	38
PID 2664 wrote to memory of 1456	2664	svchost.exe	41
PID 2664 wrote to memory of 1456	2664	svchost.exe	41
PID 2664 wrote to memory of 1456	2664	svchost.exe	41
PID 2664 wrote to memory of 1456	2664	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\NEAS.79a1b90431319340535a9f40dba9ef90.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.79a1b90431319340535a9f40dba9ef90.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2112
- \??\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:1916
- - \??\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:2880
  - - \??\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:2664
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:2824
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 16:53 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2588
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 16:54 /f
        5⤵
        Creates scheduled task(s)
        
        PID:268
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 16:55 /f
        5⤵
        Creates scheduled task(s)
        
        PID:1456
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:1904

C:\Windows\system32\taskeng.exe
taskeng.exe {E20A9A40-6163-4884-B2D6-FBD784ABEE55} S-1-5-21-2952504676-3105837840-1406404655-1000:URUOZWGF\Admin:Interactive:[1]
1⤵
PID:984

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

Loading Replay Monitor...

Downloads

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

Filesize
135KB

MD5
e86518be3b36d62a2bd4326f545cba49

SHA1
e931a01804365a7b120d4224f658d0791bfac6cd

SHA256
1061764e421b144cca3bd5d1621df5ad10f9ce2179de599da85b5b8472f0a2e8

SHA512
ee0883218589487a2bbcc144cff323c7c50dfa8e569816399bbd666fbb016d80b3a448bfe6b28f065a8530da7596aab5eecd7501119c5c1b7435345b4bfa73f2

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

Filesize
135KB

MD5
dcf359ab53cee092b9c53c51ccec7a57

SHA1
c684d99872c2a02bca6addeaee3446d3930d0ab9

SHA256
ed6b963f578d6f57fc64cf638549b92d78218d0bd3cacc3d0ed479f21c8b3d7e

SHA512
d2a486ac77ee69f17588308ab63c97ad667c4e220d23d92d4cc46febc20445f7ffaf28d4e0dee55aed43f0f9fcdac7497bdbab2b82675f3e3d13b3eed833894f

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

Filesize
135KB

MD5
dcf359ab53cee092b9c53c51ccec7a57

SHA1
c684d99872c2a02bca6addeaee3446d3930d0ab9

SHA256
ed6b963f578d6f57fc64cf638549b92d78218d0bd3cacc3d0ed479f21c8b3d7e

SHA512
d2a486ac77ee69f17588308ab63c97ad667c4e220d23d92d4cc46febc20445f7ffaf28d4e0dee55aed43f0f9fcdac7497bdbab2b82675f3e3d13b3eed833894f

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

Filesize
135KB

MD5
dcf359ab53cee092b9c53c51ccec7a57

SHA1
c684d99872c2a02bca6addeaee3446d3930d0ab9

SHA256
ed6b963f578d6f57fc64cf638549b92d78218d0bd3cacc3d0ed479f21c8b3d7e

SHA512
d2a486ac77ee69f17588308ab63c97ad667c4e220d23d92d4cc46febc20445f7ffaf28d4e0dee55aed43f0f9fcdac7497bdbab2b82675f3e3d13b3eed833894f

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

Filesize
135KB

MD5
5c0bfc72e07379bbf906b946f804c1ad

SHA1
2aaf07d1284f510c6a90f10385cbac9db4a4c1ee

SHA256
fd42ff3e09ff11b0790238d1b38556bbb188b432cd8f18df22f3ea5ae6547c6b

SHA512
e48761de3a37d530d8e9363f390462bfffea0cbcdd74321dd361df44e10c5c243f7d21efd9810e759a8a0cf18917ccde3d71fc197c704b4189eca2655eef8ef1

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

Filesize
135KB

MD5
dcf359ab53cee092b9c53c51ccec7a57

SHA1
c684d99872c2a02bca6addeaee3446d3930d0ab9

SHA256
ed6b963f578d6f57fc64cf638549b92d78218d0bd3cacc3d0ed479f21c8b3d7e

SHA512
d2a486ac77ee69f17588308ab63c97ad667c4e220d23d92d4cc46febc20445f7ffaf28d4e0dee55aed43f0f9fcdac7497bdbab2b82675f3e3d13b3eed833894f

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

Filesize
135KB

MD5
5c0bfc72e07379bbf906b946f804c1ad

SHA1
2aaf07d1284f510c6a90f10385cbac9db4a4c1ee

SHA256
fd42ff3e09ff11b0790238d1b38556bbb188b432cd8f18df22f3ea5ae6547c6b

SHA512
e48761de3a37d530d8e9363f390462bfffea0cbcdd74321dd361df44e10c5c243f7d21efd9810e759a8a0cf18917ccde3d71fc197c704b4189eca2655eef8ef1

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

Filesize
135KB

MD5
e86518be3b36d62a2bd4326f545cba49

SHA1
e931a01804365a7b120d4224f658d0791bfac6cd

SHA256
1061764e421b144cca3bd5d1621df5ad10f9ce2179de599da85b5b8472f0a2e8

SHA512
ee0883218589487a2bbcc144cff323c7c50dfa8e569816399bbd666fbb016d80b3a448bfe6b28f065a8530da7596aab5eecd7501119c5c1b7435345b4bfa73f2

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

Filesize
135KB

MD5
e86518be3b36d62a2bd4326f545cba49

SHA1
e931a01804365a7b120d4224f658d0791bfac6cd

SHA256
1061764e421b144cca3bd5d1621df5ad10f9ce2179de599da85b5b8472f0a2e8

SHA512
ee0883218589487a2bbcc144cff323c7c50dfa8e569816399bbd666fbb016d80b3a448bfe6b28f065a8530da7596aab5eecd7501119c5c1b7435345b4bfa73f2

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
dcf359ab53cee092b9c53c51ccec7a57

SHA1
c684d99872c2a02bca6addeaee3446d3930d0ab9

SHA256
ed6b963f578d6f57fc64cf638549b92d78218d0bd3cacc3d0ed479f21c8b3d7e

SHA512
d2a486ac77ee69f17588308ab63c97ad667c4e220d23d92d4cc46febc20445f7ffaf28d4e0dee55aed43f0f9fcdac7497bdbab2b82675f3e3d13b3eed833894f

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
dcf359ab53cee092b9c53c51ccec7a57

SHA1
c684d99872c2a02bca6addeaee3446d3930d0ab9

SHA256
ed6b963f578d6f57fc64cf638549b92d78218d0bd3cacc3d0ed479f21c8b3d7e

SHA512
d2a486ac77ee69f17588308ab63c97ad667c4e220d23d92d4cc46febc20445f7ffaf28d4e0dee55aed43f0f9fcdac7497bdbab2b82675f3e3d13b3eed833894f

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
5c0bfc72e07379bbf906b946f804c1ad

SHA1
2aaf07d1284f510c6a90f10385cbac9db4a4c1ee

SHA256
fd42ff3e09ff11b0790238d1b38556bbb188b432cd8f18df22f3ea5ae6547c6b

SHA512
e48761de3a37d530d8e9363f390462bfffea0cbcdd74321dd361df44e10c5c243f7d21efd9810e759a8a0cf18917ccde3d71fc197c704b4189eca2655eef8ef1

Download Submit
memory/1916-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2112-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2112-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2664-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2824-39-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2880-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download