tofsee | db08141ddd392be7ed45555340b8e28c39b642e45b8ab1c6ffecb42712ebcbe5

General

Target

2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe
Size

14.5MB
MD5

fc4780bcbdfc6c2af8855c1d4256fa02
SHA1

b4d3d9a16f3fd3e100ccd85f71099c050125878a
SHA256

db08141ddd392be7ed45555340b8e28c39b642e45b8ab1c6ffecb42712ebcbe5
SHA512

106753adefdeaa633c7d825d77d5096ea276d4501eedb99bc784aebb5dc8cf7b141a051abaf9c2bc47019d61c617d6d5e3a8cff43b3076d0b5225de0c213bc5b
SSDEEP

24576:i6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ:rWdLQk

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
5112	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\bqnhnfn\ImagePath = "C:\\Windows\\SysWOW64\\bqnhnfn\\lhzzwlky.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	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe

Deletes itself 1 IoCs

pid	Process
4392	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2944	lhzzwlky.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2944 set thread context of 4392	2944	lhzzwlky.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1184	sc.exe
3636	sc.exe
2520	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
3928	224	WerFault.exe	81
1588	2944	WerFault.exe	92

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	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lhzzwlky.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 2836	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	82
PID 224 wrote to memory of 2836	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	82
PID 224 wrote to memory of 2836	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	82
PID 224 wrote to memory of 2812	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	84
PID 224 wrote to memory of 2812	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	84
PID 224 wrote to memory of 2812	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	84
PID 224 wrote to memory of 3636	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	86
PID 224 wrote to memory of 3636	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	86
PID 224 wrote to memory of 3636	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	86
PID 224 wrote to memory of 2520	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	88
PID 224 wrote to memory of 2520	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	88
PID 224 wrote to memory of 2520	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	88
PID 224 wrote to memory of 1184	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	90
PID 224 wrote to memory of 1184	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	90
PID 224 wrote to memory of 1184	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	90
PID 224 wrote to memory of 5112	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	93
PID 224 wrote to memory of 5112	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	93
PID 224 wrote to memory of 5112	224	2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe	93
PID 2944 wrote to memory of 4392	2944	lhzzwlky.exe	98
PID 2944 wrote to memory of 4392	2944	lhzzwlky.exe	98
PID 2944 wrote to memory of 4392	2944	lhzzwlky.exe	98
PID 2944 wrote to memory of 4392	2944	lhzzwlky.exe	98
PID 2944 wrote to memory of 4392	2944	lhzzwlky.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bqnhnfn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lhzzwlky.exe" C:\Windows\SysWOW64\bqnhnfn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bqnhnfn binPath= "C:\Windows\SysWOW64\bqnhnfn\lhzzwlky.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bqnhnfn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bqnhnfn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1184
- 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:5112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 1328
  2⤵
  - Program crash
  PID:3928

C:\Windows\SysWOW64\bqnhnfn\lhzzwlky.exe
C:\Windows\SysWOW64\bqnhnfn\lhzzwlky.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_fc4780bcbdfc6c2af8855c1d4256fa02_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 512
  2⤵
  - Program crash
  PID:1588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 224 -ip 224
1⤵
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2944 -ip 2944
1⤵
PID:2272

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\lhzzwlky.exe

Filesize
13.6MB

MD5
c1dd49b29e33e1321be293049cd4de8d

SHA1
ce892c2d18cedb9d869da897f9f3df3a6a13c08f

SHA256
2451300c835f14ef314686927f180751bbb75f3799ee0a77321b6c04be0f1482

SHA512
1d0e74d25ca84f9c607015bacce644ff6dab7aa167d72b57fd6cbb8ff2e2b340c0b9da60b789281707d1a33d027a0927a3dc5bb3bbf0af6ed5cb6c1d4522e097

Download Submit
memory/224-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/224-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/224-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/224-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/224-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2944-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2944-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2944-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2944-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4392-14-0x0000000000940000-0x0000000000955000-memory.dmp

Filesize
84KB

Download
memory/4392-16-0x0000000000940000-0x0000000000955000-memory.dmp

Filesize
84KB

Download
memory/4392-17-0x0000000000940000-0x0000000000955000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads