tofsee | 09185d589ed81a08a4e4d3eb544ccc7a26902a0c3dde0b8269203a27342bc38e

General

Target

2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe
Size

12.3MB
MD5

44975788c2e1c5ac4372fdead1c27278
SHA1

0043958faabef750448c2068a6d974d9526321ef
SHA256

09185d589ed81a08a4e4d3eb544ccc7a26902a0c3dde0b8269203a27342bc38e
SHA512

95ab499ed3c2fc8bebcaa56c68204b539bada35620fce489901e63c351cadfccc47b34acdf54017a6eb6260df1e8bac488cd2c4edcbf5cd6c07f8f86e5bc39d3
SSDEEP

24576:L6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ:GWdLQk

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
2704	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\bgekboh\ImagePath = "C:\\Windows\\SysWOW64\\bgekboh\\mlzbpmnf.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe

Deletes itself 1 IoCs

pid	Process
740	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4896	mlzbpmnf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4896 set thread context of 740	4896	mlzbpmnf.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2496	sc.exe
3388	sc.exe
3960	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3172	1192	WerFault.exe	84
4204	4896	WerFault.exe	95

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	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mlzbpmnf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 1960	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	85
PID 1192 wrote to memory of 1960	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	85
PID 1192 wrote to memory of 1960	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	85
PID 1192 wrote to memory of 2636	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	87
PID 1192 wrote to memory of 2636	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	87
PID 1192 wrote to memory of 2636	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	87
PID 1192 wrote to memory of 3960	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	89
PID 1192 wrote to memory of 3960	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	89
PID 1192 wrote to memory of 3960	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	89
PID 1192 wrote to memory of 2496	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	91
PID 1192 wrote to memory of 2496	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	91
PID 1192 wrote to memory of 2496	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	91
PID 1192 wrote to memory of 3388	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	93
PID 1192 wrote to memory of 3388	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	93
PID 1192 wrote to memory of 3388	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	93
PID 1192 wrote to memory of 2704	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	96
PID 1192 wrote to memory of 2704	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	96
PID 1192 wrote to memory of 2704	1192	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	96
PID 4896 wrote to memory of 740	4896	mlzbpmnf.exe	102
PID 4896 wrote to memory of 740	4896	mlzbpmnf.exe	102
PID 4896 wrote to memory of 740	4896	mlzbpmnf.exe	102
PID 4896 wrote to memory of 740	4896	mlzbpmnf.exe	102
PID 4896 wrote to memory of 740	4896	mlzbpmnf.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bgekboh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mlzbpmnf.exe" C:\Windows\SysWOW64\bgekboh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bgekboh binPath= "C:\Windows\SysWOW64\bgekboh\mlzbpmnf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bgekboh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bgekboh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3388
- 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:2704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 1040
  2⤵
  - Program crash
  PID:3172

C:\Windows\SysWOW64\bgekboh\mlzbpmnf.exe
C:\Windows\SysWOW64\bgekboh\mlzbpmnf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4896 -s 528
  2⤵
  - Program crash
  PID:4204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1192 -ip 1192
1⤵
PID:4576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4896 -ip 4896
1⤵
PID:4944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
14.5MB

MD5
4e1006153c342b49133c553c0ce8a311

SHA1
fdc33dd5ef313e746315bee011b02a056eaf0c69

SHA256
b6d441c0bae71ffcd388cce184969e5480df836a895b4829be06b08d9488bf11

SHA512
43d8f21d5538aa418d2a9ce6cbc6c45250fcd83b4783b1bcc6b8c4848d4cc50c3acdc753d694ccfc8e07549a3a9364bfb047a905e0a2755c0ad1c98d3fd4ec9b

Download Submit
memory/740-14-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/740-17-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/740-16-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/1192-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1192-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1192-1-0x00000000007A0000-0x00000000008A0000-memory.dmp

Filesize
1024KB

Download
memory/1192-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1192-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1192-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4896-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4896-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4896-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4896-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads