tofsee | c4c31118bfe9b71372e7a3b0d8af32cb2fbdc90d2907a1527b68757c6a625972

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 04:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe
Size

11.8MB
MD5

3c35df53659a5e0bf3470dae3ca6223f
SHA1

6299504ef85eb56575fabf71ac081f9bc77e6557
SHA256

c4c31118bfe9b71372e7a3b0d8af32cb2fbdc90d2907a1527b68757c6a625972
SHA512

ae63f20babc5aed1b83862b161fcf010d80ba58bd75bd75592ca0554d6d5b1997cf139574a9072f826f5b0b9978caaef9515123b6086f65559ae6f588f44adfa
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/S:ROMdRQr7OB0ypmMXnl8XEPM3noSWOCr

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\ervvnjqa = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
588	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\ervvnjqa\ImagePath = "C:\\Windows\\SysWOW64\\ervvnjqa\\jmsmbmxd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3052	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2584	jmsmbmxd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 3052	2584	jmsmbmxd.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2724	sc.exe
2736	sc.exe
796	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	netsh.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jmsmbmxd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 2688	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	30
PID 2812 wrote to memory of 2688	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	30
PID 2812 wrote to memory of 2688	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	30
PID 2812 wrote to memory of 2688	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	30
PID 2812 wrote to memory of 2572	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	32
PID 2812 wrote to memory of 2572	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	32
PID 2812 wrote to memory of 2572	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	32
PID 2812 wrote to memory of 2572	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	32
PID 2812 wrote to memory of 2724	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	34
PID 2812 wrote to memory of 2724	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	34
PID 2812 wrote to memory of 2724	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	34
PID 2812 wrote to memory of 2724	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	34
PID 2812 wrote to memory of 2736	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	36
PID 2812 wrote to memory of 2736	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	36
PID 2812 wrote to memory of 2736	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	36
PID 2812 wrote to memory of 2736	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	36
PID 2812 wrote to memory of 796	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	38
PID 2812 wrote to memory of 796	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	38
PID 2812 wrote to memory of 796	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	38
PID 2812 wrote to memory of 796	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	38
PID 2584 wrote to memory of 3052	2584	jmsmbmxd.exe	41
PID 2584 wrote to memory of 3052	2584	jmsmbmxd.exe	41
PID 2584 wrote to memory of 3052	2584	jmsmbmxd.exe	41
PID 2584 wrote to memory of 3052	2584	jmsmbmxd.exe	41
PID 2584 wrote to memory of 3052	2584	jmsmbmxd.exe	41
PID 2584 wrote to memory of 3052	2584	jmsmbmxd.exe	41
PID 2812 wrote to memory of 588	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	42
PID 2812 wrote to memory of 588	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	42
PID 2812 wrote to memory of 588	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	42
PID 2812 wrote to memory of 588	2812	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ervvnjqa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jmsmbmxd.exe" C:\Windows\SysWOW64\ervvnjqa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ervvnjqa binPath= "C:\Windows\SysWOW64\ervvnjqa\jmsmbmxd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ervvnjqa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ervvnjqa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:796
- 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:588

C:\Windows\SysWOW64\ervvnjqa\jmsmbmxd.exe
C:\Windows\SysWOW64\ervvnjqa\jmsmbmxd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- 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:3052

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.4MB

MD5
840d716156643d3baf6c0620c979fba9

SHA1
e884c5731bf03682f31624bdfacff2c1c94628a3

SHA256
dbc122be9f4efe7f3ac0395bee69ffe3208f045d0222aeb8f07029b2705aff1f

SHA512
97335630ea7b8feb3b2843ecfcaa57e08d0deb4b9bde1bbe1f9964da0fe6708859b3cb334ad37820752a8b11995b2cadbad356f5cd111602584ec85dd09d4916

Download Submit
memory/2584-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2812-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2812-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2812-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2812-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2812-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2812-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3052-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads