tofsee | 4eafa00d707062e8b6e1769d99ac329773c06680c86e1cbeb121dbd94a779b01

General

Target

2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe
Size

11.9MB
MD5

25e8359afd9a9eb6d9a9603edddefff7
SHA1

e4f348fd6d7bafdd58715d4310f79c4aab2374b6
SHA256

4eafa00d707062e8b6e1769d99ac329773c06680c86e1cbeb121dbd94a779b01
SHA512

8d92e295423aaf3271bdcce48d1e7d61eb2d2559a93fd855ac025f6eb0e0d9f20fc6e9b5ad90843c5b94a7af23509a23072a0d40edd1938c1b7ca526452c7604
SSDEEP

3072:zLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:6OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4048	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\cvgemdor\ImagePath = "C:\\Windows\\SysWOW64\\cvgemdor\\tvqwpcm.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	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe

Deletes itself 1 IoCs

pid	Process
3204	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2000	tvqwpcm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 3204	2000	tvqwpcm.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
456	sc.exe
548	sc.exe
3804	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4724	3604	WerFault.exe	84
1492	2000	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	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_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	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	tvqwpcm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 1308	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	86
PID 3604 wrote to memory of 1308	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	86
PID 3604 wrote to memory of 1308	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	86
PID 3604 wrote to memory of 4368	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	88
PID 3604 wrote to memory of 4368	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	88
PID 3604 wrote to memory of 4368	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	88
PID 3604 wrote to memory of 456	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	90
PID 3604 wrote to memory of 456	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	90
PID 3604 wrote to memory of 456	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	90
PID 3604 wrote to memory of 548	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	92
PID 3604 wrote to memory of 548	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	92
PID 3604 wrote to memory of 548	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	92
PID 3604 wrote to memory of 3804	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	94
PID 3604 wrote to memory of 3804	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	94
PID 3604 wrote to memory of 3804	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	94
PID 3604 wrote to memory of 4048	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	97
PID 3604 wrote to memory of 4048	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	97
PID 3604 wrote to memory of 4048	3604	2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe	97
PID 2000 wrote to memory of 3204	2000	tvqwpcm.exe	102
PID 2000 wrote to memory of 3204	2000	tvqwpcm.exe	102
PID 2000 wrote to memory of 3204	2000	tvqwpcm.exe	102
PID 2000 wrote to memory of 3204	2000	tvqwpcm.exe	102
PID 2000 wrote to memory of 3204	2000	tvqwpcm.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cvgemdor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvqwpcm.exe" C:\Windows\SysWOW64\cvgemdor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cvgemdor binPath= "C:\Windows\SysWOW64\cvgemdor\tvqwpcm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cvgemdor "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cvgemdor
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3804
- 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:4048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 1220
  2⤵
  - Program crash
  PID:4724

C:\Windows\SysWOW64\cvgemdor\tvqwpcm.exe
C:\Windows\SysWOW64\cvgemdor\tvqwpcm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_25e8359afd9a9eb6d9a9603edddefff7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 508
  2⤵
  - Program crash
  PID:1492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3604 -ip 3604
1⤵
PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2000 -ip 2000
1⤵
PID:3676

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\tvqwpcm.exe

Filesize
13.5MB

MD5
40de753ae75251c4ba1910408ad71dfc

SHA1
7842fa9f32079e5b5525d77d1c1d7a87da02b340

SHA256
17afeb97d4656c3c6543c32937673c8d0996e2b852811995f998bb44811fc393

SHA512
39ef9e23243ad5489a253457fa77f02a6695cea351f8a63b66e36dff76c5dfc198253decf7268f1b28bd8e296ea4d484f7d6aac4eed5b0cc05629a36f2c1cd58

Download Submit
memory/2000-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2000-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2000-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2000-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3204-16-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/3204-14-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/3204-17-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/3604-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3604-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3604-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3604-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3604-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3604-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads