tofsee | 3b31745de060c31dcb4975f5fbc89419a637e03b80f312984bb145491179e32f

General

Target

2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe
Size

14.7MB
MD5

7633c8ebac801ccf8b5f5c6255fb0290
SHA1

01b1b6c617411eaca7b3e453bc0a5411003449f1
SHA256

3b31745de060c31dcb4975f5fbc89419a637e03b80f312984bb145491179e32f
SHA512

40c073563927ebc5ea93d3010823bac125589068940b2eed387b4d3cf87c4089e18299909b893e6eca58c7e05467072d0b8ea11b18aa23739a456f2e5ed45171
SSDEEP

24576:C6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQY:LWdLQk

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
1588	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\xhxxbedp\ImagePath = "C:\\Windows\\SysWOW64\\xhxxbedp\\tbquhfoo.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe

Deletes itself 1 IoCs

pid	Process
4236	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1280	tbquhfoo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1280 set thread context of 4236	1280	tbquhfoo.exe	109

Launches sc.exe 3 IoCs

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

pid	Process
4108	sc.exe
4688	sc.exe
4164	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
836	4476	WerFault.exe	82
688	1280	WerFault.exe	100

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	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_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	tbquhfoo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 1732	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	85
PID 4476 wrote to memory of 1732	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	85
PID 4476 wrote to memory of 1732	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	85
PID 4476 wrote to memory of 628	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	89
PID 4476 wrote to memory of 628	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	89
PID 4476 wrote to memory of 628	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	89
PID 4476 wrote to memory of 4164	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	94
PID 4476 wrote to memory of 4164	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	94
PID 4476 wrote to memory of 4164	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	94
PID 4476 wrote to memory of 4108	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	96
PID 4476 wrote to memory of 4108	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	96
PID 4476 wrote to memory of 4108	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	96
PID 4476 wrote to memory of 4688	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	98
PID 4476 wrote to memory of 4688	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	98
PID 4476 wrote to memory of 4688	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	98
PID 4476 wrote to memory of 1588	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	101
PID 4476 wrote to memory of 1588	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	101
PID 4476 wrote to memory of 1588	4476	2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe	101
PID 1280 wrote to memory of 4236	1280	tbquhfoo.exe	109
PID 1280 wrote to memory of 4236	1280	tbquhfoo.exe	109
PID 1280 wrote to memory of 4236	1280	tbquhfoo.exe	109
PID 1280 wrote to memory of 4236	1280	tbquhfoo.exe	109
PID 1280 wrote to memory of 4236	1280	tbquhfoo.exe	109

C:\Users\Admin\AppData\Local\Temp\2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xhxxbedp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tbquhfoo.exe" C:\Windows\SysWOW64\xhxxbedp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xhxxbedp binPath= "C:\Windows\SysWOW64\xhxxbedp\tbquhfoo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4164
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xhxxbedp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xhxxbedp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4688
- 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:1588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 1240
  2⤵
  - Program crash
  PID:836

C:\Windows\SysWOW64\xhxxbedp\tbquhfoo.exe
C:\Windows\SysWOW64\xhxxbedp\tbquhfoo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_7633c8ebac801ccf8b5f5c6255fb0290_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1280 -s 532
  2⤵
  - Program crash
  PID:688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4476 -ip 4476
1⤵
PID:920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1280 -ip 1280
1⤵
PID:3944

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\tbquhfoo.exe

Filesize
14.6MB

MD5
7b93dc52a92fa88d8f0bd9603513ff5b

SHA1
52a84565614b2c67467f317ab85e634d2dadc853

SHA256
683154dc6366c1164230537790833c81920fed1423b063fac7c043c9532857dd

SHA512
04b52863abddffbdc2f6480b6acc8db0e081ba0c389cc759fffc14380f4e85b2bb796b2fdd8041a9e52cf9ab1f7346b18303bfeae9706da3b4ca2726ab563eca

Download Submit
memory/1280-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1280-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1280-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1280-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4236-14-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4236-16-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4236-17-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4476-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4476-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4476-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4476-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4476-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4476-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads