tofsee | 254c7a5fc2f5a45a64374fb0f5a9eb834b6cc510e30cec6e1687a20a1a9a7157

Analysis

max time kernel
147s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:48

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General

Target

2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe
Size

13.9MB
MD5

f3a44bc30cb52a1f91e730cb059fedfa
SHA1

444732a85e3b065fc972fbcbeced19092c6c2fa2
SHA256

254c7a5fc2f5a45a64374fb0f5a9eb834b6cc510e30cec6e1687a20a1a9a7157
SHA512

07405001adc94099dd607fedc8ca11daeb7b859563269b5868332929cb887ff03c75194ac21d38704603748a751b92f7408a296e924a48c088f36fe7445217b4
SSDEEP

24576:NpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttn:noo

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\tcdlsucq = "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
2812	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\tcdlsucq\ImagePath = "C:\\Windows\\SysWOW64\\tcdlsucq\\jlepwesi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2932	jlepwesi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2816	2932	jlepwesi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2252	sc.exe
2888	sc.exe
2924	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	jlepwesi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2912	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	30
PID 2860 wrote to memory of 2912	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	30
PID 2860 wrote to memory of 2912	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	30
PID 2860 wrote to memory of 2912	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	30
PID 2860 wrote to memory of 2172	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	32
PID 2860 wrote to memory of 2172	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	32
PID 2860 wrote to memory of 2172	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	32
PID 2860 wrote to memory of 2172	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	32
PID 2860 wrote to memory of 2888	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	34
PID 2860 wrote to memory of 2888	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	34
PID 2860 wrote to memory of 2888	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	34
PID 2860 wrote to memory of 2888	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	34
PID 2860 wrote to memory of 2924	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	36
PID 2860 wrote to memory of 2924	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	36
PID 2860 wrote to memory of 2924	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	36
PID 2860 wrote to memory of 2924	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	36
PID 2860 wrote to memory of 2252	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	38
PID 2860 wrote to memory of 2252	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	38
PID 2860 wrote to memory of 2252	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	38
PID 2860 wrote to memory of 2252	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	38
PID 2860 wrote to memory of 2812	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	41
PID 2860 wrote to memory of 2812	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	41
PID 2860 wrote to memory of 2812	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	41
PID 2860 wrote to memory of 2812	2860	2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe	41
PID 2932 wrote to memory of 2816	2932	jlepwesi.exe	43
PID 2932 wrote to memory of 2816	2932	jlepwesi.exe	43
PID 2932 wrote to memory of 2816	2932	jlepwesi.exe	43
PID 2932 wrote to memory of 2816	2932	jlepwesi.exe	43
PID 2932 wrote to memory of 2816	2932	jlepwesi.exe	43
PID 2932 wrote to memory of 2816	2932	jlepwesi.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tcdlsucq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlepwesi.exe" C:\Windows\SysWOW64\tcdlsucq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tcdlsucq binPath= "C:\Windows\SysWOW64\tcdlsucq\jlepwesi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tcdlsucq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tcdlsucq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2252
- 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:2812

C:\Windows\SysWOW64\tcdlsucq\jlepwesi.exe
C:\Windows\SysWOW64\tcdlsucq\jlepwesi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f3a44bc30cb52a1f91e730cb059fedfa_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- 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:2816

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\jlepwesi.exe

Filesize
11.3MB

MD5
7d01fcf1b60746f906a133576a8a14f5

SHA1
95594bb22c2182af5033cd85b1a99963d2e5b1a9

SHA256
239deb610115bd7333bc14fe719379b28ee28ac8ef7307e3897d1ab3bce41a36

SHA512
4b04ef60093f021e44622ef69ae5cf76365d3b1b8f367bafb8da256678c9121deee28ab55ec1bc36d55c2739adb77072c36f8c68f41e0d6caa49dd1c19e8da7f

Download Submit
memory/2816-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2816-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2816-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2816-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2860-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2860-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2860-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2860-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2860-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2860-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2932-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads