tofsee | 2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 13:49

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General

Target

2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe
Size

12.2MB
MD5

c944914ddfef1d677fae78bf3e0b7f30
SHA1

8b19c08d3944854e0ef40c61fd2d29631ba50497
SHA256

2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f
SHA512

45e12665d44fb3dcb59d830a425cbf4560eea775ecdcaa8d32b1c92ab94c063adf95f36ea7a1f6bb29d9e2d06a6134d30c9d43c37934e6ef10584efb9020e1ec
SSDEEP

24576:h9PwZJBqV72ZFcZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ:6XF

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

ovicrush.cn

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\wjiahtdu = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2844	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wjiahtdu\ImagePath = "C:\\Windows\\SysWOW64\\wjiahtdu\\utejvwfj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	utejvwfj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2788	2868	utejvwfj.exe	44

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2416	sc.exe
2808	sc.exe
2752	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	utejvwfj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 1068	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	31
PID 2024 wrote to memory of 1068	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	31
PID 2024 wrote to memory of 1068	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	31
PID 2024 wrote to memory of 1068	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	31
PID 2024 wrote to memory of 1888	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	33
PID 2024 wrote to memory of 1888	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	33
PID 2024 wrote to memory of 1888	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	33
PID 2024 wrote to memory of 1888	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	33
PID 2024 wrote to memory of 2416	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	35
PID 2024 wrote to memory of 2416	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	35
PID 2024 wrote to memory of 2416	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	35
PID 2024 wrote to memory of 2416	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	35
PID 2024 wrote to memory of 2808	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	37
PID 2024 wrote to memory of 2808	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	37
PID 2024 wrote to memory of 2808	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	37
PID 2024 wrote to memory of 2808	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	37
PID 2024 wrote to memory of 2752	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	39
PID 2024 wrote to memory of 2752	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	39
PID 2024 wrote to memory of 2752	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	39
PID 2024 wrote to memory of 2752	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	39
PID 2024 wrote to memory of 2844	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	42
PID 2024 wrote to memory of 2844	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	42
PID 2024 wrote to memory of 2844	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	42
PID 2024 wrote to memory of 2844	2024	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	42
PID 2868 wrote to memory of 2788	2868	utejvwfj.exe	44
PID 2868 wrote to memory of 2788	2868	utejvwfj.exe	44
PID 2868 wrote to memory of 2788	2868	utejvwfj.exe	44
PID 2868 wrote to memory of 2788	2868	utejvwfj.exe	44
PID 2868 wrote to memory of 2788	2868	utejvwfj.exe	44
PID 2868 wrote to memory of 2788	2868	utejvwfj.exe	44

C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe
"C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wjiahtdu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\utejvwfj.exe" C:\Windows\SysWOW64\wjiahtdu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wjiahtdu binPath= "C:\Windows\SysWOW64\wjiahtdu\utejvwfj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wjiahtdu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wjiahtdu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2844

C:\Windows\SysWOW64\wjiahtdu\utejvwfj.exe
C:\Windows\SysWOW64\wjiahtdu\utejvwfj.exe /d"C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\utejvwfj.exe

Filesize
11.8MB

MD5
1e9b540aeb23ad8786a651945d0fa444

SHA1
8e287f15307d5e9e4908786d884fb553ec98b419

SHA256
3e848c39139dc7ac7ab4a7a770335942028ac09258e9845fafccb7b66539a5e8

SHA512
34c87078bb45c05d7e27c2154bccc8137f383d8ac52b470666c357caa252aca3d44ff1d4874383595bab37abdbeb4b212586187fed07953c63d0c4b8b6ec9582

Download Submit
memory/2024-9-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2024-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2024-7-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2024-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2024-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2788-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-17-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads