tofsee | 65e7dca3e554fa97db7b5c161d2b3b712a32563dc67f02ab98ea8c6179c11932

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 19:47

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General

Target

2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe
Size

14.4MB
MD5

b26be96277efa679e8a1fe0e211681d7
SHA1

5dbe836df94801b9ffaaa4936961a72bf1906259
SHA256

65e7dca3e554fa97db7b5c161d2b3b712a32563dc67f02ab98ea8c6179c11932
SHA512

4555510ec6c7fdd4836afdee3687bf52f2105218c18dfc9304608ff5878cb254da62e6aa989d5889822d848e045fe4c555fca920addc2c7478249f67b21dbad0
SSDEEP

6144:lLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQo:WTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

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\smsynwxk = "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
2800	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\smsynwxk\ImagePath = "C:\\Windows\\SysWOW64\\smsynwxk\\ugfteowq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2980	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2156	ugfteowq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2156 set thread context of 2980	2156	ugfteowq.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2768	sc.exe
2804	sc.exe
2888	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	sc.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ugfteowq.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2288	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	31
PID 2380 wrote to memory of 2288	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	31
PID 2380 wrote to memory of 2288	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	31
PID 2380 wrote to memory of 2288	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	31
PID 2380 wrote to memory of 972	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	33
PID 2380 wrote to memory of 972	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	33
PID 2380 wrote to memory of 972	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	33
PID 2380 wrote to memory of 972	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	33
PID 2380 wrote to memory of 2768	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	35
PID 2380 wrote to memory of 2768	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	35
PID 2380 wrote to memory of 2768	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	35
PID 2380 wrote to memory of 2768	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	35
PID 2380 wrote to memory of 2804	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	37
PID 2380 wrote to memory of 2804	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	37
PID 2380 wrote to memory of 2804	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	37
PID 2380 wrote to memory of 2804	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	37
PID 2380 wrote to memory of 2888	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	39
PID 2380 wrote to memory of 2888	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	39
PID 2380 wrote to memory of 2888	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	39
PID 2380 wrote to memory of 2888	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	39
PID 2380 wrote to memory of 2800	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	42
PID 2380 wrote to memory of 2800	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	42
PID 2380 wrote to memory of 2800	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	42
PID 2380 wrote to memory of 2800	2380	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	42
PID 2156 wrote to memory of 2980	2156	ugfteowq.exe	44
PID 2156 wrote to memory of 2980	2156	ugfteowq.exe	44
PID 2156 wrote to memory of 2980	2156	ugfteowq.exe	44
PID 2156 wrote to memory of 2980	2156	ugfteowq.exe	44
PID 2156 wrote to memory of 2980	2156	ugfteowq.exe	44
PID 2156 wrote to memory of 2980	2156	ugfteowq.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\smsynwxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ugfteowq.exe" C:\Windows\SysWOW64\smsynwxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create smsynwxk binPath= "C:\Windows\SysWOW64\smsynwxk\ugfteowq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description smsynwxk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start smsynwxk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- 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:2800

C:\Windows\SysWOW64\smsynwxk\ugfteowq.exe
C:\Windows\SysWOW64\smsynwxk\ugfteowq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156
- 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:2980

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\ugfteowq.exe

Filesize
13.3MB

MD5
4d7216ef131c6d26b959e618eedb3ed1

SHA1
7b6f9aadb6214f876098b4576fb28b9bdff579b0

SHA256
22e4cf089d320e75fa5f9c36151b1585ccd5f9fba83f61f2f618bce54807d63c

SHA512
52002318c659aa0c59d1e6e5579d1be99ac94d42165de5628547df1035263bc82f7d818848bdf26455a4053b5f511b8306ec4664efde47588e286f15692ea1ee

Download Submit
memory/2156-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2380-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2380-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2380-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2980-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads