tofsee | 994e81fb5f54eb9e52df8df253dcdccc72d1392cedf8df90326ab0779df19524

General

Target

2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe
Size

11.0MB
MD5

691538f9228fb8bdff33d93f22b3d9ad
SHA1

9567d6d79cfea0b287f7081c0676f82ddb7971d9
SHA256

994e81fb5f54eb9e52df8df253dcdccc72d1392cedf8df90326ab0779df19524
SHA512

6cecc83c562a06af8b77aa838f1a913c462737bcf4601e4def3c7e3bf1e8dacd5b46a89e3ee9ede7f49fd273b9fadebb8da248360426bd6cbbff555e85571084
SSDEEP

24576:86WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQv:RWdLQkt

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
456	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\znzujmju\ImagePath = "C:\\Windows\\SysWOW64\\znzujmju\\jddufofh.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe

Deletes itself 1 IoCs

pid	Process
4956	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2320	jddufofh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2320 set thread context of 4956	2320	jddufofh.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
700	sc.exe
4620	sc.exe
4092	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
3972	2012	WerFault.exe	83
1200	2320	WerFault.exe	96

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	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	jddufofh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 3968	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	86
PID 2012 wrote to memory of 3968	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	86
PID 2012 wrote to memory of 3968	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	86
PID 2012 wrote to memory of 3340	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	88
PID 2012 wrote to memory of 3340	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	88
PID 2012 wrote to memory of 3340	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	88
PID 2012 wrote to memory of 700	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	90
PID 2012 wrote to memory of 700	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	90
PID 2012 wrote to memory of 700	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	90
PID 2012 wrote to memory of 4620	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	92
PID 2012 wrote to memory of 4620	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	92
PID 2012 wrote to memory of 4620	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	92
PID 2012 wrote to memory of 4092	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	94
PID 2012 wrote to memory of 4092	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	94
PID 2012 wrote to memory of 4092	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	94
PID 2012 wrote to memory of 456	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	97
PID 2012 wrote to memory of 456	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	97
PID 2012 wrote to memory of 456	2012	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	97
PID 2320 wrote to memory of 4956	2320	jddufofh.exe	102
PID 2320 wrote to memory of 4956	2320	jddufofh.exe	102
PID 2320 wrote to memory of 4956	2320	jddufofh.exe	102
PID 2320 wrote to memory of 4956	2320	jddufofh.exe	102
PID 2320 wrote to memory of 4956	2320	jddufofh.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\znzujmju\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jddufofh.exe" C:\Windows\SysWOW64\znzujmju\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create znzujmju binPath= "C:\Windows\SysWOW64\znzujmju\jddufofh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description znzujmju "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start znzujmju
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4092
- 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:456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 1044
  2⤵
  - Program crash
  PID:3972

C:\Windows\SysWOW64\znzujmju\jddufofh.exe
C:\Windows\SysWOW64\znzujmju\jddufofh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4956
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 512
  2⤵
  - Program crash
  PID:1200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2012 -ip 2012
1⤵
PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2320 -ip 2320
1⤵
PID:1672

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\jddufofh.exe

Filesize
14.8MB

MD5
fc90d59af46490f05344727a010ad1cf

SHA1
963773f28a2aa5499cca6fd6abf32ff32e4bd85f

SHA256
a2190a96bb946f43da046c0f91e53058267b2af3a4e547eaa24831475347b842

SHA512
9e3013e5aa1aab3415f6fd54ecdad6b1d323e451fd92ab1d293343c07b04dece878ce3b0b1306cd652928ad3422895618ce077a2038b1207fedb352e8a0c8cda

Download Submit
memory/2012-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2012-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2012-2-0x00000000008B0000-0x00000000008C3000-memory.dmp

Filesize
76KB

Download
memory/2012-8-0x00000000008B0000-0x00000000008C3000-memory.dmp

Filesize
76KB

Download
memory/2012-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2012-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/2320-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2320-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2320-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2320-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4956-14-0x0000000000BE0000-0x0000000000BF5000-memory.dmp

Filesize
84KB

Download
memory/4956-16-0x0000000000BE0000-0x0000000000BF5000-memory.dmp

Filesize
84KB

Download
memory/4956-17-0x0000000000BE0000-0x0000000000BF5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads