tofsee | 6150472c5276109b11fa5807758de86251c0c35e7999d4992518ca58fc034f97

General

Target

2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe
Size

12.6MB
MD5

ff5414d20310ec2257e8494640f8cd7c
SHA1

5a1e1d1b4d07f5a71a6d5578b67b2c3d3bc53504
SHA256

6150472c5276109b11fa5807758de86251c0c35e7999d4992518ca58fc034f97
SHA512

37e2d6399d93fabf18101183bfef78a8363c9eb5d50209d45ebbba3b7136704f8350814536fe49b8a1ceb3d9611c23a84eee9d1750edc20e519b72a1811e0227
SSDEEP

24576:LEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZY:Yfot+

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
38	2012	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1540	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\sviwecph\ImagePath = "C:\\Windows\\SysWOW64\\sviwecph\\uthjxuvn.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-1-5-21-2508704002-2325818048-3575902788-1000\Control Panel\International\Geo\Nation	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe

Deletes itself 1 IoCs

pid	Process
5068	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5056	uthjxuvn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5056 set thread context of 5068	5056	uthjxuvn.exe	115

Launches sc.exe 3 IoCs

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

pid	Process
2036	sc.exe
732	sc.exe
3404	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
2212	2072	WerFault.exe	87
5052	5056	WerFault.exe	107

System Location Discovery: System Language Discovery 1 TTPs 10 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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uthjxuvn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2828	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 116	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	96
PID 2072 wrote to memory of 116	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	96
PID 2072 wrote to memory of 116	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	96
PID 2072 wrote to memory of 4116	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	98
PID 2072 wrote to memory of 4116	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	98
PID 2072 wrote to memory of 4116	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	98
PID 2072 wrote to memory of 732	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	100
PID 2072 wrote to memory of 732	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	100
PID 2072 wrote to memory of 732	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	100
PID 2072 wrote to memory of 3404	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	102
PID 2072 wrote to memory of 3404	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	102
PID 2072 wrote to memory of 3404	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	102
PID 2072 wrote to memory of 2036	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	104
PID 2072 wrote to memory of 2036	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	104
PID 2072 wrote to memory of 2036	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	104
PID 2072 wrote to memory of 1540	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	109
PID 2072 wrote to memory of 1540	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	109
PID 2072 wrote to memory of 1540	2072	2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe	109
PID 5056 wrote to memory of 5068	5056	uthjxuvn.exe	115
PID 5056 wrote to memory of 5068	5056	uthjxuvn.exe	115
PID 5056 wrote to memory of 5068	5056	uthjxuvn.exe	115
PID 5056 wrote to memory of 5068	5056	uthjxuvn.exe	115
PID 5056 wrote to memory of 5068	5056	uthjxuvn.exe	115

C:\Users\Admin\AppData\Local\Temp\2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sviwecph\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uthjxuvn.exe" C:\Windows\SysWOW64\sviwecph\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sviwecph binPath= "C:\Windows\SysWOW64\sviwecph\uthjxuvn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sviwecph "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sviwecph
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2036
- 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:1540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 892
  2⤵
  - Program crash
  PID:2212

C:\Windows\SysWOW64\sviwecph\uthjxuvn.exe
C:\Windows\SysWOW64\sviwecph\uthjxuvn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_ff5414d20310ec2257e8494640f8cd7c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 508
  2⤵
  - Program crash
  PID:5052

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMyMzYiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDI1MTE0ODAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjgzMTg2MjczIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2072 -ip 2072
1⤵
PID:1716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5056 -ip 5056
1⤵
PID:5100

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.2MB

MD5
2066262d3a538c3e2e25065bfef09b8e

SHA1
9a9f4a0c799e43766b5d16bdc4b87ca82d334910

SHA256
89c8d21426d33d9a60a6b1996ca7c7a7eaa5fad1a760f756c0b83b1b20625d25

SHA512
23d36d15616e7dc70fbea362c5d5fff64de69059602c4659607fedc29764d66154ddef77bed8e0b5aeeaab61698f343907ec5708adcd3b236a94ba93ae5d8813

Download Submit
memory/2072-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/2072-2-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/2072-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2072-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2072-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2072-8-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/5056-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5068-12-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/5068-14-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/5068-15-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads