tofsee | c1d3875af33b5d1cf77b3c21d6cb9c262602d45a57531c319fa36bafb129ff66

General

Target

2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe
Size

12.8MB
MD5

b5f5869e710e443196fbcbac5a5b8ca0
SHA1

f2bfb31da282319b38bda917e58513062199939a
SHA256

c1d3875af33b5d1cf77b3c21d6cb9c262602d45a57531c319fa36bafb129ff66
SHA512

149ca3c468ee38aa4ddda83e4f62002f6dcfa35da395d215f2cae754d726292ea5beede098e45c7294c148b2d32b4c5a43c1aa26f5e225f45efa9a50911781f3
SSDEEP

24576:cpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttq:4oo0

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
38	3056	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
3752	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\nakgbkqc\ImagePath = "C:\\Windows\\SysWOW64\\nakgbkqc\\xwkmaxyq.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-1-5-21-1318997816-2171176372-1451785247-1000\Control Panel\International\Geo\Nation	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe

Deletes itself 1 IoCs

pid	Process
5092	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4440	xwkmaxyq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4440 set thread context of 5092	4440	xwkmaxyq.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
2136	sc.exe
4068	sc.exe
4700	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
4952	2128	WerFault.exe	89
4444	4440	WerFault.exe	100

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	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	xwkmaxyq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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
208	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 3964	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	90
PID 2128 wrote to memory of 3964	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	90
PID 2128 wrote to memory of 3964	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	90
PID 2128 wrote to memory of 3492	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	92
PID 2128 wrote to memory of 3492	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	92
PID 2128 wrote to memory of 3492	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	92
PID 2128 wrote to memory of 4068	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	94
PID 2128 wrote to memory of 4068	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	94
PID 2128 wrote to memory of 4068	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	94
PID 2128 wrote to memory of 4700	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	96
PID 2128 wrote to memory of 4700	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	96
PID 2128 wrote to memory of 4700	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	96
PID 2128 wrote to memory of 2136	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	98
PID 2128 wrote to memory of 2136	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	98
PID 2128 wrote to memory of 2136	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	98
PID 2128 wrote to memory of 3752	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	101
PID 2128 wrote to memory of 3752	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	101
PID 2128 wrote to memory of 3752	2128	2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe	101
PID 4440 wrote to memory of 5092	4440	xwkmaxyq.exe	106
PID 4440 wrote to memory of 5092	4440	xwkmaxyq.exe	106
PID 4440 wrote to memory of 5092	4440	xwkmaxyq.exe	106
PID 4440 wrote to memory of 5092	4440	xwkmaxyq.exe	106
PID 4440 wrote to memory of 5092	4440	xwkmaxyq.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nakgbkqc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xwkmaxyq.exe" C:\Windows\SysWOW64\nakgbkqc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nakgbkqc binPath= "C:\Windows\SysWOW64\nakgbkqc\xwkmaxyq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nakgbkqc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nakgbkqc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- 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:3752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 1048
  2⤵
  - Program crash
  PID:4952

C:\Windows\SysWOW64\nakgbkqc\xwkmaxyq.exe
C:\Windows\SysWOW64\nakgbkqc\xwkmaxyq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_b5f5869e710e443196fbcbac5a5b8ca0_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 512
  2⤵
  - Program crash
  PID:4444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2128 -ip 2128
1⤵
PID:1412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4440 -ip 4440
1⤵
PID:4516

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODU1OTE1NjM5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:208

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\xwkmaxyq.exe

Filesize
10.1MB

MD5
cedef27b32d04d2d4d05b196abbbd84c

SHA1
0fb869f48383a6671d5888367356f0bc72059b0b

SHA256
d90447f1b632943ed02eb0185721fa7f2749a89944cc6fb02bc21ab2e1dc1eda

SHA512
c79f7e8035fa90877477dbde3faf98a6ab05c5b42ab4f5f5f2b33a39eef7994f1c370ec5549afd257f3512d001ffca3516fd71247dc5bf3e838a99cf5a8a70a0

Download Submit
memory/2128-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2128-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2128-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2128-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/4440-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4440-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4440-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4440-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5092-14-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download
memory/5092-16-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download
memory/5092-19-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads