tofsee | 65e7dca3e554fa97db7b5c161d2b3b712a32563dc67f02ab98ea8c6179c11932

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 19:39

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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\etiewlwv = "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
3000	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\etiewlwv\ImagePath = "C:\\Windows\\SysWOW64\\etiewlwv\\wfzewvqm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2564	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3012	wfzewvqm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3012 set thread context of 2564	3012	wfzewvqm.exe	45

Launches sc.exe 3 IoCs

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

pid	Process
2216	sc.exe
2676	sc.exe
2800	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	sc.exe
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	wfzewvqm.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 772 wrote to memory of 2472	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	32
PID 772 wrote to memory of 2472	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	32
PID 772 wrote to memory of 2472	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	32
PID 772 wrote to memory of 2472	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	32
PID 772 wrote to memory of 2180	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	34
PID 772 wrote to memory of 2180	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	34
PID 772 wrote to memory of 2180	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	34
PID 772 wrote to memory of 2180	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	34
PID 772 wrote to memory of 2216	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	36
PID 772 wrote to memory of 2216	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	36
PID 772 wrote to memory of 2216	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	36
PID 772 wrote to memory of 2216	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	36
PID 772 wrote to memory of 2676	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	38
PID 772 wrote to memory of 2676	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	38
PID 772 wrote to memory of 2676	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	38
PID 772 wrote to memory of 2676	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	38
PID 772 wrote to memory of 2800	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	40
PID 772 wrote to memory of 2800	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	40
PID 772 wrote to memory of 2800	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	40
PID 772 wrote to memory of 2800	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	40
PID 772 wrote to memory of 3000	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	43
PID 772 wrote to memory of 3000	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	43
PID 772 wrote to memory of 3000	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	43
PID 772 wrote to memory of 3000	772	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	43
PID 3012 wrote to memory of 2564	3012	wfzewvqm.exe	45
PID 3012 wrote to memory of 2564	3012	wfzewvqm.exe	45
PID 3012 wrote to memory of 2564	3012	wfzewvqm.exe	45
PID 3012 wrote to memory of 2564	3012	wfzewvqm.exe	45
PID 3012 wrote to memory of 2564	3012	wfzewvqm.exe	45
PID 3012 wrote to memory of 2564	3012	wfzewvqm.exe	45

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:772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\etiewlwv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wfzewvqm.exe" C:\Windows\SysWOW64\etiewlwv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create etiewlwv binPath= "C:\Windows\SysWOW64\etiewlwv\wfzewvqm.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:2216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description etiewlwv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start etiewlwv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:3000

C:\Windows\SysWOW64\etiewlwv\wfzewvqm.exe
C:\Windows\SysWOW64\etiewlwv\wfzewvqm.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:3012
- 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:2564

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\wfzewvqm.exe

Filesize
11.8MB

MD5
55a97b4d50319236addcb240111e5961

SHA1
8bde6377449f071417ef7e347fe9208afb988ae7

SHA256
a378539f1dd66ee533e29553b6e06efedd8d4b8774303c806b83d2f3f6248580

SHA512
cecfcaf3b880ef02b72246ae03d8ca2f81946b64d82786fe9f1e42e84400fd893176c1cd015b22c7b1e0a1fb03573b8c7b095c297c2503cecba615c73e6d40f0

Download Submit
memory/772-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/772-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/772-1-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download
memory/772-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/772-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/772-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2564-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3012-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads