tofsee | db59034e8634366a2f6b7f8a6c91399beb14ad5be0f12e309de7e805963b9b3c

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 18:44

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General

Target

2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe
Size

11.4MB
MD5

07136c6c2b2c098e614be421dc1f638b
SHA1

92af92900994707b8b6d4e9ef06cd0011cb01452
SHA256

db59034e8634366a2f6b7f8a6c91399beb14ad5be0f12e309de7e805963b9b3c
SHA512

46b59ba652e164599319f6cfa67f5ac5dca618fde602bd9de8dc80626275e9997ae3c5ab89b406db67aa68fa9f501445b6e24b065fda7dff03586594481aa979
SSDEEP

24576:l6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQw:kWdLQk

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\faxeuoav = "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
1964	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\faxeuoav\ImagePath = "C:\\Windows\\SysWOW64\\faxeuoav\\lngryguk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2896	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2252	lngryguk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 2896	2252	lngryguk.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2404	sc.exe
2836	sc.exe
2776	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	lngryguk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_07136c6c2b2c098e614be421dc1f638b_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2384	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	30
PID 2528 wrote to memory of 2384	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	30
PID 2528 wrote to memory of 2384	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	30
PID 2528 wrote to memory of 2384	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	30
PID 2528 wrote to memory of 756	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	32
PID 2528 wrote to memory of 756	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	32
PID 2528 wrote to memory of 756	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	32
PID 2528 wrote to memory of 756	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	32
PID 2528 wrote to memory of 2404	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	34
PID 2528 wrote to memory of 2404	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	34
PID 2528 wrote to memory of 2404	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	34
PID 2528 wrote to memory of 2404	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	34
PID 2528 wrote to memory of 2836	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	36
PID 2528 wrote to memory of 2836	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	36
PID 2528 wrote to memory of 2836	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	36
PID 2528 wrote to memory of 2836	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	36
PID 2528 wrote to memory of 2776	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	38
PID 2528 wrote to memory of 2776	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	38
PID 2528 wrote to memory of 2776	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	38
PID 2528 wrote to memory of 2776	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	38
PID 2252 wrote to memory of 2896	2252	lngryguk.exe	41
PID 2252 wrote to memory of 2896	2252	lngryguk.exe	41
PID 2252 wrote to memory of 2896	2252	lngryguk.exe	41
PID 2252 wrote to memory of 2896	2252	lngryguk.exe	41
PID 2252 wrote to memory of 2896	2252	lngryguk.exe	41
PID 2252 wrote to memory of 2896	2252	lngryguk.exe	41
PID 2528 wrote to memory of 1964	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	42
PID 2528 wrote to memory of 1964	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	42
PID 2528 wrote to memory of 1964	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	42
PID 2528 wrote to memory of 1964	2528	2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\faxeuoav\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lngryguk.exe" C:\Windows\SysWOW64\faxeuoav\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create faxeuoav binPath= "C:\Windows\SysWOW64\faxeuoav\lngryguk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description faxeuoav "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start faxeuoav
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- 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:1964

C:\Windows\SysWOW64\faxeuoav\lngryguk.exe
C:\Windows\SysWOW64\faxeuoav\lngryguk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_07136c6c2b2c098e614be421dc1f638b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- 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:2896

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\lngryguk.exe

Filesize
12.3MB

MD5
4ecf0b185e3046987a5357ae44c12e64

SHA1
14afb242afc9dba95ffe06d7cf0621bd64172167

SHA256
c2fe678d90cc099323b22c704809c719fdce9d237fa322b098ef23e702dc14a2

SHA512
397b16b36a25dc80d08f9d6a867bf4747519c1bc1c3046966eecb37a944302d67f2ff6f798189ee0cdf33ae5524c3c083e626288f4a3a7f6fd9518dab3ee68d1

Download Submit
memory/2252-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2528-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2528-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2528-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2528-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2528-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

Filesize
1024KB

Download
memory/2528-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2896-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2896-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2896-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2896-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads