tofsee | 25cd89351dd05bd4bc33b2a498ef0b672064f388c004129cdcfd1ef497ccff12

General

Target

2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe
Size

12.4MB
MD5

3b9857de29e1beb7de6ec52a79d8b613
SHA1

55ca43e75483ae2de702728cc266484a4bc54792
SHA256

25cd89351dd05bd4bc33b2a498ef0b672064f388c004129cdcfd1ef497ccff12
SHA512

902a1ff4a0ff1e6e23c13a231843620ce9667bb0fca2c4170772e9a07e4b026146e565cb170efac070c4bae54d924406c3bddefe4698c0ca2f5a80bea102ea9e
SSDEEP

49152:zqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPy:zqtYc3/

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
400	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\gzpothtw\ImagePath = "C:\\Windows\\SysWOW64\\gzpothtw\\qqrcxywe.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-1-5-21-805940606-1861219160-370298170-1000\Control Panel\International\Geo\Nation	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe

Deletes itself 1 IoCs

pid	Process
4376	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1196	qqrcxywe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1196 set thread context of 4376	1196	qqrcxywe.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4076	sc.exe
2392	sc.exe
636	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3480	1196	WerFault.exe	96
4728	2432	WerFault.exe	82

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	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	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qqrcxywe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 1716	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	86
PID 2432 wrote to memory of 1716	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	86
PID 2432 wrote to memory of 1716	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	86
PID 2432 wrote to memory of 4012	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	88
PID 2432 wrote to memory of 4012	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	88
PID 2432 wrote to memory of 4012	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	88
PID 2432 wrote to memory of 4076	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	90
PID 2432 wrote to memory of 4076	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	90
PID 2432 wrote to memory of 4076	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	90
PID 2432 wrote to memory of 2392	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	92
PID 2432 wrote to memory of 2392	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	92
PID 2432 wrote to memory of 2392	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	92
PID 2432 wrote to memory of 636	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	94
PID 2432 wrote to memory of 636	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	94
PID 2432 wrote to memory of 636	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	94
PID 1196 wrote to memory of 4376	1196	qqrcxywe.exe	97
PID 1196 wrote to memory of 4376	1196	qqrcxywe.exe	97
PID 1196 wrote to memory of 4376	1196	qqrcxywe.exe	97
PID 1196 wrote to memory of 4376	1196	qqrcxywe.exe	97
PID 1196 wrote to memory of 4376	1196	qqrcxywe.exe	97
PID 2432 wrote to memory of 400	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	99
PID 2432 wrote to memory of 400	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	99
PID 2432 wrote to memory of 400	2432	2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gzpothtw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qqrcxywe.exe" C:\Windows\SysWOW64\gzpothtw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gzpothtw binPath= "C:\Windows\SysWOW64\gzpothtw\qqrcxywe.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gzpothtw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gzpothtw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:636
- 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:400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2432 -s 740
  2⤵
  - Program crash
  PID:4728

C:\Windows\SysWOW64\gzpothtw\qqrcxywe.exe
C:\Windows\SysWOW64\gzpothtw\qqrcxywe.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_3b9857de29e1beb7de6ec52a79d8b613_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1196 -s 508
  2⤵
  - Program crash
  PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1196 -ip 1196
1⤵
PID:2628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2432 -ip 2432
1⤵
PID:4700

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\qqrcxywe.exe

Filesize
10.5MB

MD5
bdf8ee1bb2ea5f8c7815fea66c0f92e3

SHA1
581d9c1cf4da60b8892b8fc275fe0fa9f92cbc0e

SHA256
67e6af929ab34e89b5f92b973bc7cc6e1bbdc5fcf775bc496db0ca6b6e47ac90

SHA512
0db070a1e272d503d706cc00747e33fa70a70f3eed35c4795df5544fe8f39667c815811a4c76167d6ba0d659a1c3216b90b9a0298a58dfce0d56d84274c3b71a

Download Submit
memory/1196-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2432-1-0x00000000030C0000-0x00000000031C0000-memory.dmp

Filesize
1024KB

Download
memory/2432-2-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

Filesize
76KB

Download
memory/2432-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-12-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

Filesize
76KB

Download
memory/2432-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4376-8-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/4376-14-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/4376-15-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads