tofsee | a4287a992a3a033ee2751d0afe1f3461109c37550a7ab412bb34114581b231b9

General

Target

2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe
Size

13.6MB
MD5

f3b1b2b1d0278d2b6208d20373fa71c5
SHA1

4dde8a6c941614087573f4e298defc1c881e58df
SHA256

a4287a992a3a033ee2751d0afe1f3461109c37550a7ab412bb34114581b231b9
SHA512

f11b8f9fa2ed80835a741602365bd5f77591165dcaad2c5fc2cf08626137d2e355405dbc6f97d577866c5b34339a9ce21a6d1aee9b636f1283e9f52329095d57
SSDEEP

24576:t/0dLk3X4ICvkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkT:F0dLk3ohc

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
37	3884	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
3048	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\iuazbela\ImagePath = "C:\\Windows\\SysWOW64\\iuazbela\\bsovmlpt.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-1-5-21-705198581-2062733989-3666524522-1000\Control Panel\International\Geo\Nation	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe

Deletes itself 1 IoCs

pid	Process
1776	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
432	bsovmlpt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 432 set thread context of 1776	432	bsovmlpt.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
3340	sc.exe
4584	sc.exe
4524	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
2016	1752	WerFault.exe	85
2224	432	WerFault.exe	99

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bsovmlpt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_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	netsh.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
2684	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 3796	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	89
PID 1752 wrote to memory of 3796	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	89
PID 1752 wrote to memory of 3796	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	89
PID 1752 wrote to memory of 2364	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	91
PID 1752 wrote to memory of 2364	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	91
PID 1752 wrote to memory of 2364	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	91
PID 1752 wrote to memory of 3340	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	93
PID 1752 wrote to memory of 3340	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	93
PID 1752 wrote to memory of 3340	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	93
PID 1752 wrote to memory of 4584	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	95
PID 1752 wrote to memory of 4584	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	95
PID 1752 wrote to memory of 4584	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	95
PID 1752 wrote to memory of 4524	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	97
PID 1752 wrote to memory of 4524	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	97
PID 1752 wrote to memory of 4524	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	97
PID 1752 wrote to memory of 3048	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	100
PID 1752 wrote to memory of 3048	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	100
PID 1752 wrote to memory of 3048	1752	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	100
PID 432 wrote to memory of 1776	432	bsovmlpt.exe	105
PID 432 wrote to memory of 1776	432	bsovmlpt.exe	105
PID 432 wrote to memory of 1776	432	bsovmlpt.exe	105
PID 432 wrote to memory of 1776	432	bsovmlpt.exe	105
PID 432 wrote to memory of 1776	432	bsovmlpt.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iuazbela\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bsovmlpt.exe" C:\Windows\SysWOW64\iuazbela\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iuazbela binPath= "C:\Windows\SysWOW64\iuazbela\bsovmlpt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iuazbela "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iuazbela
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4524
- 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:3048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1036
  2⤵
  - Program crash
  PID:2016

C:\Windows\SysWOW64\iuazbela\bsovmlpt.exe
C:\Windows\SysWOW64\iuazbela\bsovmlpt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:432
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 432 -s 512
  2⤵
  - Program crash
  PID:2224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1752 -ip 1752
1⤵
PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 432 -ip 432
1⤵
PID:3612

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI1IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4NjAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODIxNjMwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDM4NDc5NTU2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2684

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

Replay Monitor

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Downloads

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

Filesize
11.7MB

MD5
4377097368e9bf70dd2811828bba0cd2

SHA1
c8e48597d0f5e162adec1d3ad48c1a5b24a84c94

SHA256
9346e38649e0ad09c48695107cb610e3ed71fd813b6f3c8de426a69664a47cce

SHA512
13061fed98355b73c39ab9c58e8c7833d7a7f254a14d2e1a2b0d95bd01f253d71a9ad4a2bf4c7599511bbd908446ed51875532d16813d916d7ead9245f806e40

Download Submit
memory/432-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/432-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/432-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/432-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1752-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1752-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1752-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1752-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1752-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1752-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/1776-14-0x0000000001220000-0x0000000001235000-memory.dmp

Filesize
84KB

Download
memory/1776-16-0x0000000001220000-0x0000000001235000-memory.dmp

Filesize
84KB

Download
memory/1776-17-0x0000000001220000-0x0000000001235000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads