tofsee | cc37d38e078fb1516375a02f84093023df75a55b4c2ca880fa98255175ee7da7

General

Target

2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe
Size

12.2MB
MD5

9e54799a6d1ce9d9b4aab05f59141e88
SHA1

5a2708cfb96b1ed2ab880a8aaaa3ea1e25709b41
SHA256

cc37d38e078fb1516375a02f84093023df75a55b4c2ca880fa98255175ee7da7
SHA512

601a8af10c73544b05456f31103aeb3927fd6718a91973d6cec63035fe23a4819b66569996e7e431fd22cac3d5c5a16977930b65bdee989b62e8d9f51327782b
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2408	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\bxwxrcuv\ImagePath = "C:\\Windows\\SysWOW64\\bxwxrcuv\\ltimzxgg.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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe

Deletes itself 1 IoCs

pid	Process
3568	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3148	ltimzxgg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3148 set thread context of 3568	3148	ltimzxgg.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
3416	sc.exe
1392	sc.exe
2876	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
3668	1644	WerFault.exe	82
1232	3148	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	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ltimzxgg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 700	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	86
PID 1644 wrote to memory of 700	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	86
PID 1644 wrote to memory of 700	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	86
PID 1644 wrote to memory of 1600	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	88
PID 1644 wrote to memory of 1600	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	88
PID 1644 wrote to memory of 1600	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	88
PID 1644 wrote to memory of 3416	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	90
PID 1644 wrote to memory of 3416	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	90
PID 1644 wrote to memory of 3416	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	90
PID 1644 wrote to memory of 1392	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	92
PID 1644 wrote to memory of 1392	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	92
PID 1644 wrote to memory of 1392	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	92
PID 1644 wrote to memory of 2876	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	94
PID 1644 wrote to memory of 2876	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	94
PID 1644 wrote to memory of 2876	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	94
PID 1644 wrote to memory of 2408	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	97
PID 1644 wrote to memory of 2408	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	97
PID 1644 wrote to memory of 2408	1644	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	97
PID 3148 wrote to memory of 3568	3148	ltimzxgg.exe	103
PID 3148 wrote to memory of 3568	3148	ltimzxgg.exe	103
PID 3148 wrote to memory of 3568	3148	ltimzxgg.exe	103
PID 3148 wrote to memory of 3568	3148	ltimzxgg.exe	103
PID 3148 wrote to memory of 3568	3148	ltimzxgg.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bxwxrcuv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ltimzxgg.exe" C:\Windows\SysWOW64\bxwxrcuv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bxwxrcuv binPath= "C:\Windows\SysWOW64\bxwxrcuv\ltimzxgg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bxwxrcuv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bxwxrcuv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- 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:2408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1644 -s 1192
  2⤵
  - Program crash
  PID:3668

C:\Windows\SysWOW64\bxwxrcuv\ltimzxgg.exe
C:\Windows\SysWOW64\bxwxrcuv\ltimzxgg.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 512
  2⤵
  - Program crash
  PID:1232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1644 -ip 1644
1⤵
PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3148 -ip 3148
1⤵
PID:4632

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\ltimzxgg.exe

Filesize
13.0MB

MD5
1d7ab04792e07201e6a5441f4ed11dae

SHA1
99fb8db8aa04cc6f0ffdb8826ccf7771b75a5d7b

SHA256
03afb073bd0bf6ecacdc998e03ae42b6ddcbf87d6c3ece249d257a59e6940ae4

SHA512
484de0ca292d739fac674b206f12931ad08abb89c842c330e652371428daf076bcf55672128f7308a70acce98cf8d0eef83b751b95ced0a0c53b85cc6a07362f

Download Submit
memory/1644-8-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/1644-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1644-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/1644-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1644-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1644-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/3148-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3148-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3148-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3148-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3568-14-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3568-16-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3568-19-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads