tofsee | 65e7dca3e554fa97db7b5c161d2b3b712a32563dc67f02ab98ea8c6179c11932

General

Target

2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe
Size

14.4MB
MD5

b26be96277efa679e8a1fe0e211681d7
SHA1

5dbe836df94801b9ffaaa4936961a72bf1906259
SHA256

65e7dca3e554fa97db7b5c161d2b3b712a32563dc67f02ab98ea8c6179c11932
SHA512

4555510ec6c7fdd4836afdee3687bf52f2105218c18dfc9304608ff5878cb254da62e6aa989d5889822d848e045fe4c555fca920addc2c7478249f67b21dbad0
SSDEEP

6144:lLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQo:WTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4712	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\ljzwetoc\ImagePath = "C:\\Windows\\SysWOW64\\ljzwetoc\\fioixitz.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe

Deletes itself 1 IoCs

pid	Process
3520	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	fioixitz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 3520	2884	fioixitz.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3108	sc.exe
4752	sc.exe
1056	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
3156	1284	WerFault.exe	82
2868	2884	WerFault.exe	93

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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_b26be96277efa679e8a1fe0e211681d7_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	fioixitz.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 100	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	83
PID 1284 wrote to memory of 100	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	83
PID 1284 wrote to memory of 100	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	83
PID 1284 wrote to memory of 2888	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	85
PID 1284 wrote to memory of 2888	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	85
PID 1284 wrote to memory of 2888	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	85
PID 1284 wrote to memory of 3108	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	87
PID 1284 wrote to memory of 3108	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	87
PID 1284 wrote to memory of 3108	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	87
PID 1284 wrote to memory of 4752	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	89
PID 1284 wrote to memory of 4752	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	89
PID 1284 wrote to memory of 4752	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	89
PID 1284 wrote to memory of 1056	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	91
PID 1284 wrote to memory of 1056	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	91
PID 1284 wrote to memory of 1056	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	91
PID 1284 wrote to memory of 4712	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	94
PID 1284 wrote to memory of 4712	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	94
PID 1284 wrote to memory of 4712	1284	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	94
PID 2884 wrote to memory of 3520	2884	fioixitz.exe	100
PID 2884 wrote to memory of 3520	2884	fioixitz.exe	100
PID 2884 wrote to memory of 3520	2884	fioixitz.exe	100
PID 2884 wrote to memory of 3520	2884	fioixitz.exe	100
PID 2884 wrote to memory of 3520	2884	fioixitz.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ljzwetoc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fioixitz.exe" C:\Windows\SysWOW64\ljzwetoc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ljzwetoc binPath= "C:\Windows\SysWOW64\ljzwetoc\fioixitz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ljzwetoc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ljzwetoc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1056
- 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:4712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 1044
  2⤵
  - Program crash
  PID:3156

C:\Windows\SysWOW64\ljzwetoc\fioixitz.exe
C:\Windows\SysWOW64\ljzwetoc\fioixitz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 512
  2⤵
  - Program crash
  PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1284 -ip 1284
1⤵
PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2884 -ip 2884
1⤵
PID:3644

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\fioixitz.exe

Filesize
14.3MB

MD5
9263f13345a65ea25d188a7aaae359d7

SHA1
e258a85fbd413ff2f2a9b1760585f40ba819827f

SHA256
8d177a04c80269ab829c4aeefe95aaad20641e32b45ddcc299f0c0123a7ea837

SHA512
093cded2258f3042cb23efbe4930a6b25dbdf593e79b7d6bfc117f9c408286263d8b4d3c72a86e3d6e1a010140a584d53feb3933514cac34ca37c9e7385b683f

Download Submit
memory/1284-8-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/1284-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1284-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/1284-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1284-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1284-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

Filesize
1024KB

Download
memory/2884-12-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2884-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2884-11-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2884-19-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3520-14-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/3520-16-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/3520-17-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads