tofsee | d704962d9c756222b04dbb5c65cdd3e3781ff524c0a22b31a0c9274996d570fe

General

Target

2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe
Size

14.4MB
MD5

cfc8a9ff1e1fc9bc4c7cefe56d90bd60
SHA1

71902bf86c8077af438d52a4ce58594e9ede9016
SHA256

d704962d9c756222b04dbb5c65cdd3e3781ff524c0a22b31a0c9274996d570fe
SHA512

7b2e54101394f4ea61c86eb49fa41c996d55558e655eeefc5ac27f54e389622f20d0d451d65c7261c103e1953e4cb0aeae28dc2fc5f8aaaee692efd968cd93a0
SSDEEP

3072:1LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:YOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
5060	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\tqevgrei\ImagePath = "C:\\Windows\\SysWOW64\\tqevgrei\\izvctswa.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe

Deletes itself 1 IoCs

pid	Process
224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1360	izvctswa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1360 set thread context of 224	1360	izvctswa.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3740	sc.exe
4864	sc.exe
1608	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
3676	3148	WerFault.exe	82
4428	1360	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_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	izvctswa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 4924	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	83
PID 3148 wrote to memory of 4924	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	83
PID 3148 wrote to memory of 4924	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	83
PID 3148 wrote to memory of 3168	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	86
PID 3148 wrote to memory of 3168	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	86
PID 3148 wrote to memory of 3168	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	86
PID 3148 wrote to memory of 3740	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	88
PID 3148 wrote to memory of 3740	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	88
PID 3148 wrote to memory of 3740	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	88
PID 3148 wrote to memory of 4864	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	90
PID 3148 wrote to memory of 4864	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	90
PID 3148 wrote to memory of 4864	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	90
PID 3148 wrote to memory of 1608	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	92
PID 3148 wrote to memory of 1608	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	92
PID 3148 wrote to memory of 1608	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	92
PID 3148 wrote to memory of 5060	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	95
PID 3148 wrote to memory of 5060	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	95
PID 3148 wrote to memory of 5060	3148	2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe	95
PID 1360 wrote to memory of 224	1360	izvctswa.exe	101
PID 1360 wrote to memory of 224	1360	izvctswa.exe	101
PID 1360 wrote to memory of 224	1360	izvctswa.exe	101
PID 1360 wrote to memory of 224	1360	izvctswa.exe	101
PID 1360 wrote to memory of 224	1360	izvctswa.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tqevgrei\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\izvctswa.exe" C:\Windows\SysWOW64\tqevgrei\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tqevgrei binPath= "C:\Windows\SysWOW64\tqevgrei\izvctswa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tqevgrei "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tqevgrei
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1608
- 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:5060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 1044
  2⤵
  - Program crash
  PID:3676

C:\Windows\SysWOW64\tqevgrei\izvctswa.exe
C:\Windows\SysWOW64\tqevgrei\izvctswa.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-03_cfc8a9ff1e1fc9bc4c7cefe56d90bd60_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 556
  2⤵
  - Program crash
  PID:4428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3148 -ip 3148
1⤵
PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1360 -ip 1360
1⤵
PID:4960

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\izvctswa.exe

Filesize
10.9MB

MD5
60233b3d97bcfcecc6268588f7fdfbb4

SHA1
2e49f197b0e9d16c70689501f00c8e181208e3b5

SHA256
cef88e639739b9d55dc284c2837b1e8a4575eb9167d30a32e692d983bd9e41c9

SHA512
83cee6186528d84086cc06a0ae8dc188c95e32985229b13bc1fddd3bcc8496495f7aede6d8e311cc35f1e99033dce60bb3f1c00ca85d687354494b87f9802615

Download Submit
memory/224-14-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/224-17-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/224-16-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/1360-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1360-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1360-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1360-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3148-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3148-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3148-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/3148-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3148-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3148-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads