tofsee | 30ecd6f613c2259348422d6167f34c01a5374d978d512b84f2a64e94d1b10d8e

General

Target

2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe
Size

14.5MB
MD5

0e117629bea7310213e5299e6d8522f7
SHA1

3d7d2008bd81f8714c1af2954ac7586e0fb87023
SHA256

30ecd6f613c2259348422d6167f34c01a5374d978d512b84f2a64e94d1b10d8e
SHA512

b136cba73db8d878ee01528117519371d55c284e592d025f6b3e05b8589fa2e5ba9568d8711fc28182c4575b23629470eeee4143b9edd385dc77f93a13f53a69
SSDEEP

24576:bpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttf:too

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
1392	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\afgfbjkp\ImagePath = "C:\\Windows\\SysWOW64\\afgfbjkp\\xtllixwk.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe

Deletes itself 1 IoCs

pid	Process
1708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1836	xtllixwk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 1708	1836	xtllixwk.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
5004	sc.exe
4216	sc.exe
4240	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
3964	2796	WerFault.exe	83
1436	1836	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xtllixwk.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
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	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 3004	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	86
PID 2796 wrote to memory of 3004	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	86
PID 2796 wrote to memory of 3004	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	86
PID 2796 wrote to memory of 1480	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	88
PID 2796 wrote to memory of 1480	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	88
PID 2796 wrote to memory of 1480	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	88
PID 2796 wrote to memory of 4216	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	90
PID 2796 wrote to memory of 4216	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	90
PID 2796 wrote to memory of 4216	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	90
PID 2796 wrote to memory of 4240	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	92
PID 2796 wrote to memory of 4240	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	92
PID 2796 wrote to memory of 4240	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	92
PID 2796 wrote to memory of 5004	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	94
PID 2796 wrote to memory of 5004	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	94
PID 2796 wrote to memory of 5004	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	94
PID 2796 wrote to memory of 1392	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	97
PID 2796 wrote to memory of 1392	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	97
PID 2796 wrote to memory of 1392	2796	2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe	97
PID 1836 wrote to memory of 1708	1836	xtllixwk.exe	102
PID 1836 wrote to memory of 1708	1836	xtllixwk.exe	102
PID 1836 wrote to memory of 1708	1836	xtllixwk.exe	102
PID 1836 wrote to memory of 1708	1836	xtllixwk.exe	102
PID 1836 wrote to memory of 1708	1836	xtllixwk.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\afgfbjkp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xtllixwk.exe" C:\Windows\SysWOW64\afgfbjkp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1480
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create afgfbjkp binPath= "C:\Windows\SysWOW64\afgfbjkp\xtllixwk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description afgfbjkp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start afgfbjkp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5004
- 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:1392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 1036
  2⤵
  - Program crash
  PID:3964

C:\Windows\SysWOW64\afgfbjkp\xtllixwk.exe
C:\Windows\SysWOW64\afgfbjkp\xtllixwk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_0e117629bea7310213e5299e6d8522f7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 512
  2⤵
  - Program crash
  PID:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2796 -ip 2796
1⤵
PID:3196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1836 -ip 1836
1⤵
PID:2692

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\xtllixwk.exe

Filesize
14.7MB

MD5
9586282845bca218d3b48c170b58ce03

SHA1
a8c1bc14a6f1b0cefd4bec29f98a2da58277b476

SHA256
326c1a578ae0a7f046af18000a257d2d5b540c4bcde0dafd157e7fe12727d37d

SHA512
e68ed096765f598362c02457d5daeca90a20e49e85d3cef7579e5eecc394521fb05d831ac8ab2471219e0d5a12dd2f6107d1ee5ee506a881dba954bc5656ac27

Download Submit
memory/1708-14-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download
memory/1708-17-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download
memory/1708-16-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download
memory/1836-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1836-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1836-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1836-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2796-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2796-8-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/2796-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/2796-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2796-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2796-2-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads