tofsee | 701ea75b7c7ca3573e7f881b266d400af81230e56a9126bf7cd84cb61110fa87

General

Target

2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe
Size

14.9MB
MD5

2cc302706f39bccc5e13507680faf44f
SHA1

acd7bf8ffdfde5108010e6a18476e16dd0b6c5e3
SHA256

701ea75b7c7ca3573e7f881b266d400af81230e56a9126bf7cd84cb61110fa87
SHA512

5091a159f7fcb1526706ceb81a3c3ddfc3f2ad9ae49bbbe0c45050cf4965127f49876a5ebbf1012cab3877bda313ba11794127bef32d2881df3450da10e5737a
SSDEEP

3072:LLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:yOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
1900	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\wmbhzcim\ImagePath = "C:\\Windows\\SysWOW64\\wmbhzcim\\udxcutok.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe

Deletes itself 1 IoCs

pid	Process
3600	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1664	udxcutok.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1664 set thread context of 3600	1664	udxcutok.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3408	sc.exe
3020	sc.exe
2900	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
856	3000	WerFault.exe	81
2548	1664	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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	udxcutok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2724	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	82
PID 3000 wrote to memory of 2724	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	82
PID 3000 wrote to memory of 2724	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	82
PID 3000 wrote to memory of 4172	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	84
PID 3000 wrote to memory of 4172	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	84
PID 3000 wrote to memory of 4172	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	84
PID 3000 wrote to memory of 3408	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	86
PID 3000 wrote to memory of 3408	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	86
PID 3000 wrote to memory of 3408	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	86
PID 3000 wrote to memory of 3020	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	88
PID 3000 wrote to memory of 3020	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	88
PID 3000 wrote to memory of 3020	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	88
PID 3000 wrote to memory of 2900	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	90
PID 3000 wrote to memory of 2900	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	90
PID 3000 wrote to memory of 2900	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	90
PID 3000 wrote to memory of 1900	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	93
PID 3000 wrote to memory of 1900	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	93
PID 3000 wrote to memory of 1900	3000	2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe	93
PID 1664 wrote to memory of 3600	1664	udxcutok.exe	98
PID 1664 wrote to memory of 3600	1664	udxcutok.exe	98
PID 1664 wrote to memory of 3600	1664	udxcutok.exe	98
PID 1664 wrote to memory of 3600	1664	udxcutok.exe	98
PID 1664 wrote to memory of 3600	1664	udxcutok.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wmbhzcim\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\udxcutok.exe" C:\Windows\SysWOW64\wmbhzcim\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wmbhzcim binPath= "C:\Windows\SysWOW64\wmbhzcim\udxcutok.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wmbhzcim "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wmbhzcim
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:1900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3000 -s 1040
  2⤵
  - Program crash
  PID:856

C:\Windows\SysWOW64\wmbhzcim\udxcutok.exe
C:\Windows\SysWOW64\wmbhzcim\udxcutok.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_2cc302706f39bccc5e13507680faf44f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1664 -s 556
  2⤵
  - Program crash
  PID:2548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3000 -ip 3000
1⤵
PID:3348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1664 -ip 1664
1⤵
PID:3920

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\udxcutok.exe

Filesize
12.7MB

MD5
2479cd7af89f20079b8a52a14d4842cf

SHA1
6a86211b777e959f22ab5dddcfdb7a2aee279cd3

SHA256
d490ac6f19a04d4447d3b92e0003329c3a54485d9d59c1df5b36abb31bdcb2bc

SHA512
5fd7a427cf2e3f81120c2d59af6653807f4a5aa40e2421edd406d9fd87dc6f33ca73dbb7a59bbe4d840db56ab92217b3e2641fbd1ac794e9a7680f9237d7dac4

Download Submit
memory/1664-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1664-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1664-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1664-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3000-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/3000-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/3000-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3000-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3000-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3000-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/3600-16-0x0000000000F20000-0x0000000000F35000-memory.dmp

Filesize
84KB

Download
memory/3600-14-0x0000000000F20000-0x0000000000F35000-memory.dmp

Filesize
84KB

Download
memory/3600-17-0x0000000000F20000-0x0000000000F35000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads