tofsee | 26fa74148d0fa19e70e4b5d7bc7e49f1807e90314372dec26e280c0be5b10186

General

Target

2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe
Size

12.5MB
MD5

f4e76a3fa0d0bb36820e6a52941850c4
SHA1

e11791cbb12933f5581084f9c770fe457c1e866f
SHA256

26fa74148d0fa19e70e4b5d7bc7e49f1807e90314372dec26e280c0be5b10186
SHA512

c4591495b387bb8a344e9abe7d7a6c81c0efae54b6bf4e510c7ccc7829c96af61116b39ffa804c3011af9a9345d08ca3e8c0b53a243335e4d355077f61db5934
SSDEEP

24576:dpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttZ:3ooT

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
3940	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\eoxjqjhu\ImagePath = "C:\\Windows\\SysWOW64\\eoxjqjhu\\ikdovdrh.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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe

Deletes itself 1 IoCs

pid	Process
3180	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3480	ikdovdrh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3480 set thread context of 3180	3480	ikdovdrh.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
5040	sc.exe
2752	sc.exe
2356	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
1904	708	WerFault.exe	82
2160	3480	WerFault.exe	98

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	ikdovdrh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 708 wrote to memory of 4876	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	88
PID 708 wrote to memory of 4876	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	88
PID 708 wrote to memory of 4876	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	88
PID 708 wrote to memory of 4988	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	90
PID 708 wrote to memory of 4988	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	90
PID 708 wrote to memory of 4988	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	90
PID 708 wrote to memory of 5040	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	92
PID 708 wrote to memory of 5040	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	92
PID 708 wrote to memory of 5040	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	92
PID 708 wrote to memory of 2752	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	94
PID 708 wrote to memory of 2752	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	94
PID 708 wrote to memory of 2752	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	94
PID 708 wrote to memory of 2356	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	96
PID 708 wrote to memory of 2356	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	96
PID 708 wrote to memory of 2356	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	96
PID 708 wrote to memory of 3940	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	99
PID 708 wrote to memory of 3940	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	99
PID 708 wrote to memory of 3940	708	2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe	99
PID 3480 wrote to memory of 3180	3480	ikdovdrh.exe	104
PID 3480 wrote to memory of 3180	3480	ikdovdrh.exe	104
PID 3480 wrote to memory of 3180	3480	ikdovdrh.exe	104
PID 3480 wrote to memory of 3180	3480	ikdovdrh.exe	104
PID 3480 wrote to memory of 3180	3480	ikdovdrh.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eoxjqjhu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ikdovdrh.exe" C:\Windows\SysWOW64\eoxjqjhu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eoxjqjhu binPath= "C:\Windows\SysWOW64\eoxjqjhu\ikdovdrh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eoxjqjhu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eoxjqjhu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2356
- 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:3940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 708 -s 1340
  2⤵
  - Program crash
  PID:1904

C:\Windows\SysWOW64\eoxjqjhu\ikdovdrh.exe
C:\Windows\SysWOW64\eoxjqjhu\ikdovdrh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f4e76a3fa0d0bb36820e6a52941850c4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 516
  2⤵
  - Program crash
  PID:2160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 708 -ip 708
1⤵
PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3480 -ip 3480
1⤵
PID:2604

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.4MB

MD5
25595a8c0a59c9fa3ccd5c599d860a64

SHA1
9427dc820cc666cc3184bdf763afe361037143be

SHA256
fb4dc8fe79b621cedd14021560bad8a6167a1a0757bbafd463659db9925749bd

SHA512
2d7722d9d25008549a9f533dcfa382a30ffe7d61e5e80bd381d72c03d0eb386f9f45b5162a86e7ba0841d012e3fd8c5d8cd72904a2eb992e508653f5d26935b9

Download Submit
memory/708-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/708-2-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/708-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/708-8-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/708-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/3180-14-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download
memory/3180-16-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download
memory/3180-17-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download
memory/3480-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3480-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3480-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3480-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads