cd257df528fde9016a833fad9ef04c6e27d9e63e29c299a187400f17cfea46db

Analysis

max time kernel
151s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
09-07-2024 07:28

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General

Target

3143cfc018bcf44682c6ce4f28ab7c60N.exe
Size

135KB
MD5

3143cfc018bcf44682c6ce4f28ab7c60
SHA1

b6e9acd674e3be90d8dc0147673a0bb44b2540a9
SHA256

cd257df528fde9016a833fad9ef04c6e27d9e63e29c299a187400f17cfea46db
SHA512

2a804e2a2cfbb37aec04219c5c52fd454e95bb9ce366c202ae354a529dbb30b12c1138924f64114c51f8bc7ca305f7dfeb59069f2fb099630d179025f620b962
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbV78L:UVqoCl/YgjxEufVU0TbTyDDal2L

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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
3068	explorer.exe
2948	spoolsv.exe
2976	svchost.exe
2864	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
3068	explorer.exe
2948	spoolsv.exe
2976	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	3143cfc018bcf44682c6ce4f28ab7c60N.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

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2696	schtasks.exe
2044	schtasks.exe
2076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
3068	explorer.exe
3068	explorer.exe
3068	explorer.exe
2976	svchost.exe
2976	svchost.exe
3068	explorer.exe
2976	svchost.exe
3068	explorer.exe
2976	svchost.exe
3068	explorer.exe
2976	svchost.exe
3068	explorer.exe
3068	explorer.exe
2976	svchost.exe
3068	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
3068	explorer.exe
2976	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe
3068	explorer.exe
3068	explorer.exe
2948	spoolsv.exe
2948	spoolsv.exe
2976	svchost.exe
2976	svchost.exe
2864	spoolsv.exe
2864	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 3068	1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe	30
PID 1512 wrote to memory of 3068	1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe	30
PID 1512 wrote to memory of 3068	1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe	30
PID 1512 wrote to memory of 3068	1512	3143cfc018bcf44682c6ce4f28ab7c60N.exe	30
PID 3068 wrote to memory of 2948	3068	explorer.exe	31
PID 3068 wrote to memory of 2948	3068	explorer.exe	31
PID 3068 wrote to memory of 2948	3068	explorer.exe	31
PID 3068 wrote to memory of 2948	3068	explorer.exe	31
PID 2948 wrote to memory of 2976	2948	spoolsv.exe	32
PID 2948 wrote to memory of 2976	2948	spoolsv.exe	32
PID 2948 wrote to memory of 2976	2948	spoolsv.exe	32
PID 2948 wrote to memory of 2976	2948	spoolsv.exe	32
PID 2976 wrote to memory of 2864	2976	svchost.exe	33
PID 2976 wrote to memory of 2864	2976	svchost.exe	33
PID 2976 wrote to memory of 2864	2976	svchost.exe	33
PID 2976 wrote to memory of 2864	2976	svchost.exe	33
PID 3068 wrote to memory of 2264	3068	explorer.exe	34
PID 3068 wrote to memory of 2264	3068	explorer.exe	34
PID 3068 wrote to memory of 2264	3068	explorer.exe	34
PID 3068 wrote to memory of 2264	3068	explorer.exe	34
PID 2976 wrote to memory of 2696	2976	svchost.exe	35
PID 2976 wrote to memory of 2696	2976	svchost.exe	35
PID 2976 wrote to memory of 2696	2976	svchost.exe	35
PID 2976 wrote to memory of 2696	2976	svchost.exe	35
PID 2976 wrote to memory of 2044	2976	svchost.exe	38
PID 2976 wrote to memory of 2044	2976	svchost.exe	38
PID 2976 wrote to memory of 2044	2976	svchost.exe	38
PID 2976 wrote to memory of 2044	2976	svchost.exe	38
PID 2976 wrote to memory of 2076	2976	svchost.exe	40
PID 2976 wrote to memory of 2076	2976	svchost.exe	40
PID 2976 wrote to memory of 2076	2976	svchost.exe	40
PID 2976 wrote to memory of 2076	2976	svchost.exe	40

C:\Users\Admin\AppData\Local\Temp\3143cfc018bcf44682c6ce4f28ab7c60N.exe
"C:\Users\Admin\AppData\Local\Temp\3143cfc018bcf44682c6ce4f28ab7c60N.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1512
- \??\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:3068
- - \??\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:2948
  - - \??\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:2976
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:2864
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 07:31 /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2696
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 07:32 /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2044
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 07:33 /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2076
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2264

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
c9a7d1b9ffedcbe8c0d70e2e53f442c3

SHA1
6fb8ac81b6e78bca07a29fc02b8aaae48ac270cb

SHA256
b9d9a27a9fa35b5f6bd708a1e882a172e9cafc81d62ac0a856a0744900370b10

SHA512
9042f829cc1920bf7d1ea637be6a3e31b015748722a8b84c81dc4258bb2167e17f974fd60f469b450de34af0e93a27785572c994cc084ae25c924670a604fd3c

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

Filesize
135KB

MD5
f1104b642f3afaf09208ec0cbb13d354

SHA1
24608527465f4c46781e1d5a692ed5ee8205ffcb

SHA256
cd575c33898f53ee9bc0575a35460066595e4fc9afc0d649d18234b7720e4213

SHA512
6bf849787e1b91b797ebf5cb8a054b6b2d73a31ad94ac3bf962b3bd1fad4baa6a97d33dc1148629070e03fbbf1344c0c010e95c4e188baee629b55467d0d8457

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
4a67938d069935bda2df19b5e9b3b015

SHA1
43d0028293aaa6c04a04c0a14e900d407f5a425b

SHA256
014eae30269b298dc5230a336331fc3e8635c89dc177ac755000bc5cb460fecc

SHA512
a5959211fee984d31aa1a89c5c9cedc1e8fd380ba5213daeb74adbad430476f2a82d5932e3bf62ba4ae468259f7a03e56a600113816c9fa3d5d7ca82f1e62675

Download Submit
memory/1512-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1512-9-0x0000000000270000-0x000000000028F000-memory.dmp

Filesize
124KB

Download
memory/1512-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2864-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2948-30-0x0000000001B50000-0x0000000001B6F000-memory.dmp

Filesize
124KB

Download
memory/2948-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download