342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 04:50

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General

Target

342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
Size

135KB
MD5

49e2bd561af5bd5c54a47a1640c88990
SHA1

8a686a755c846a80e1fa9236f0caee46c8883558
SHA256

342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0
SHA512

34a5d40921bce3a30149a83f6cbb2178b420947d3195e010dc9355c9aa02ca102bd8a1bd81bde44c216d5fa70e7d87b641b680773191b24c5205c80e56f2209e
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVU4:UVqoCl/YgjxEufVU0TbTyDDalS4

Score

10^/10

discovery 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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2360	explorer.exe
2104	spoolsv.exe
2300	svchost.exe
2792	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2360	explorer.exe
2104	spoolsv.exe
2300	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"	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 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	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.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

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2720	schtasks.exe
1740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2300	svchost.exe
2360	explorer.exe
2360	explorer.exe
2360	explorer.exe
2300	svchost.exe
2300	svchost.exe
2360	explorer.exe
2300	svchost.exe
2360	explorer.exe
2300	svchost.exe
2360	explorer.exe
2300	svchost.exe
2360	explorer.exe
2300	svchost.exe
2360	explorer.exe
2300	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2360	explorer.exe
2300	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
2360	explorer.exe
2360	explorer.exe
2104	spoolsv.exe
2104	spoolsv.exe
2300	svchost.exe
2300	svchost.exe
2792	spoolsv.exe
2792	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2360	2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe	30
PID 2960 wrote to memory of 2360	2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe	30
PID 2960 wrote to memory of 2360	2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe	30
PID 2960 wrote to memory of 2360	2960	342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe	30
PID 2360 wrote to memory of 2104	2360	explorer.exe	31
PID 2360 wrote to memory of 2104	2360	explorer.exe	31
PID 2360 wrote to memory of 2104	2360	explorer.exe	31
PID 2360 wrote to memory of 2104	2360	explorer.exe	31
PID 2104 wrote to memory of 2300	2104	spoolsv.exe	32
PID 2104 wrote to memory of 2300	2104	spoolsv.exe	32
PID 2104 wrote to memory of 2300	2104	spoolsv.exe	32
PID 2104 wrote to memory of 2300	2104	spoolsv.exe	32
PID 2300 wrote to memory of 2792	2300	svchost.exe	33
PID 2300 wrote to memory of 2792	2300	svchost.exe	33
PID 2300 wrote to memory of 2792	2300	svchost.exe	33
PID 2300 wrote to memory of 2792	2300	svchost.exe	33
PID 2360 wrote to memory of 2780	2360	explorer.exe	34
PID 2360 wrote to memory of 2780	2360	explorer.exe	34
PID 2360 wrote to memory of 2780	2360	explorer.exe	34
PID 2360 wrote to memory of 2780	2360	explorer.exe	34
PID 2300 wrote to memory of 2720	2300	svchost.exe	35
PID 2300 wrote to memory of 2720	2300	svchost.exe	35
PID 2300 wrote to memory of 2720	2300	svchost.exe	35
PID 2300 wrote to memory of 2720	2300	svchost.exe	35
PID 2300 wrote to memory of 1740	2300	svchost.exe	39
PID 2300 wrote to memory of 1740	2300	svchost.exe	39
PID 2300 wrote to memory of 1740	2300	svchost.exe	39
PID 2300 wrote to memory of 1740	2300	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe
"C:\Users\Admin\AppData\Local\Temp\342ee7a03a2e1d1c8368f2ba80fc3e40ddb2df12d6bbe1185432a2f77d0d48c0N.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2960
- \??\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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2360
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2104
  - - \??\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
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2300
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2792
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:52 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2720
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:53 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1740
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2780

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
56a1c700e5c642cbfbb8b70f89ef5837

SHA1
ed9f6c414106d0b9542f30837df6f594e0c07ad1

SHA256
4b8faed51110a2dcd69bc5aa7068638fa4bd4abf0a7979ec47f706ece177b5e7

SHA512
96ce63b14531d280bece013dcf0be5306ce7575595e7e1b05f7e7b5074d6818312d1b0bc8be90efbf49a178d54e521a0cfd7a3b31de58368d214adf61265ed29

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
a122ac3fb6875e3add5296688da48435

SHA1
ab5cd514826be147743e79ffb94ebd4b668953e8

SHA256
7b8cca8b8ebcdf4dec63121da552aa69b4fdec5eb72c8b46b2ba43af03cbe5aa

SHA512
f34669b477d632b37efbc9d8f0b40d358789fc9d4176fea3c0d291c900055d03a45dbc16b0133833050ebab382bc979b9e48d0ef42817e4d164cf635b762b580

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
23a82484f7fefeb678b280ea7b1e6511

SHA1
ef0fd7070177bf326d6e2131806a527e9194c1b6

SHA256
711081b3a1d2dac30576234e278e9dee44dd925264f92ac59bb8393588f58a67

SHA512
9878bcff6a162fffe852313e63c09f7698dd18b7e7db196cbad5f78e2fb7955d321b7b1e99b55a8555f20695798e4d385428a69631317f8e13e6a91f4912e00d

Download Submit
memory/2104-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2300-35-0x00000000003A0000-0x00000000003BF000-memory.dmp

Filesize
124KB

Download
memory/2300-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2360-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2360-44-0x00000000003E0000-0x00000000003FF000-memory.dmp

Filesize
124KB

Download
memory/2792-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2960-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2960-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download