tofsee | f6447aa548beb265ea43df6c97b9b55d10455908e8c3c6406375a99b84c14f32

General

Target

2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe
Size

12.3MB
MD5

381381242335bd0bee0747b0b1f9b5ab
SHA1

6f5c445fda03ebe6c1d543e0e77e9dea6483d4b1
SHA256

f6447aa548beb265ea43df6c97b9b55d10455908e8c3c6406375a99b84c14f32
SHA512

30d485e0c4ce7edfa8c483bb48ecfed4fdfb7105be2bd190b971d45d40add05a4e6d520b5608334a9638f994261645cfbf532c8e086b7885dc713f6072a6b7ed
SSDEEP

6144:CLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQt:jTYe+D2jFu+iZoUFhAz

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
4072	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\qhrbceak\ImagePath = "C:\\Windows\\SysWOW64\\qhrbceak\\fsebuhmw.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe

Deletes itself 1 IoCs

pid	Process
348	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1168	fsebuhmw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1168 set thread context of 348	1168	fsebuhmw.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
3068	sc.exe
2276	sc.exe
1772	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2524	1168	WerFault.exe	92
2808	4456	WerFault.exe	81

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	fsebuhmw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 4524	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	82
PID 4456 wrote to memory of 4524	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	82
PID 4456 wrote to memory of 4524	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	82
PID 4456 wrote to memory of 5116	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	84
PID 4456 wrote to memory of 5116	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	84
PID 4456 wrote to memory of 5116	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	84
PID 4456 wrote to memory of 3068	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	86
PID 4456 wrote to memory of 3068	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	86
PID 4456 wrote to memory of 3068	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	86
PID 4456 wrote to memory of 2276	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	88
PID 4456 wrote to memory of 2276	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	88
PID 4456 wrote to memory of 2276	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	88
PID 4456 wrote to memory of 1772	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	90
PID 4456 wrote to memory of 1772	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	90
PID 4456 wrote to memory of 1772	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	90
PID 1168 wrote to memory of 348	1168	fsebuhmw.exe	93
PID 1168 wrote to memory of 348	1168	fsebuhmw.exe	93
PID 1168 wrote to memory of 348	1168	fsebuhmw.exe	93
PID 1168 wrote to memory of 348	1168	fsebuhmw.exe	93
PID 1168 wrote to memory of 348	1168	fsebuhmw.exe	93
PID 4456 wrote to memory of 4072	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	94
PID 4456 wrote to memory of 4072	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	94
PID 4456 wrote to memory of 4072	4456	2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe	94

C:\Users\Admin\AppData\Local\Temp\2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qhrbceak\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fsebuhmw.exe" C:\Windows\SysWOW64\qhrbceak\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qhrbceak binPath= "C:\Windows\SysWOW64\qhrbceak\fsebuhmw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qhrbceak "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2276
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qhrbceak
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1772
- 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:4072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 1036
  2⤵
  - Program crash
  PID:2808

C:\Windows\SysWOW64\qhrbceak\fsebuhmw.exe
C:\Windows\SysWOW64\qhrbceak\fsebuhmw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_381381242335bd0bee0747b0b1f9b5ab_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1168 -s 508
  2⤵
  - Program crash
  PID:2524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4456 -ip 4456
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1168 -ip 1168
1⤵
PID:2024

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\fsebuhmw.exe

Filesize
11.3MB

MD5
b330b4527bd0f55f989755e790c55762

SHA1
4620108a4102b4698796509624f5f826c22f062a

SHA256
fa4f675a21a2c7321b19cf0cc5af8689eb5cbf8965c8ba7c17a34f2413c49b79

SHA512
edbd4ac0158a1255ce7a083632c8a00404554b7e1b8de4688a33565690dffc92df9b44dd29f836538102ff0bbb79f8e2eb03fd67f06002249b154a9ec142e514

Download Submit
memory/348-10-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/348-13-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/348-21-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/348-20-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/348-19-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/1168-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1168-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1168-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4456-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/4456-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4456-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4456-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4456-17-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/4456-2-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads