tofsee | 483792510effe9b4c4085d1962caae4aa93547ebd91006a68de0b8745617c154

General

Target

2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe
Size

12.9MB
MD5

988e4c015a0e26ef49408fe8d7dd8128
SHA1

b05c15ebd878390e309f887accd405614d7bbfa3
SHA256

483792510effe9b4c4085d1962caae4aa93547ebd91006a68de0b8745617c154
SHA512

ed2495b187f10adee5316af0a054718862b978f712a32724d4456196b0d3f4d7505ed5b2cf54ab32bb4ea8e2dc3c3cae2bb4c3dca3e67c6c5f88079f3f0af86d
SSDEEP

24576:upomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt9:Coo

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
3068	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\snbihldh\ImagePath = "C:\\Windows\\SysWOW64\\snbihldh\\hcgyozbz.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe

Deletes itself 1 IoCs

pid	Process
756	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2720	hcgyozbz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 756	2720	hcgyozbz.exe	112

Launches sc.exe 3 IoCs

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

pid	Process
3316	sc.exe
2388	sc.exe
1860	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
1920	1904	WerFault.exe	83
3832	2720	WerFault.exe	105

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hcgyozbz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 1036	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	94
PID 1904 wrote to memory of 1036	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	94
PID 1904 wrote to memory of 1036	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	94
PID 1904 wrote to memory of 5088	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	96
PID 1904 wrote to memory of 5088	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	96
PID 1904 wrote to memory of 5088	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	96
PID 1904 wrote to memory of 3316	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	99
PID 1904 wrote to memory of 3316	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	99
PID 1904 wrote to memory of 3316	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	99
PID 1904 wrote to memory of 2388	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	101
PID 1904 wrote to memory of 2388	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	101
PID 1904 wrote to memory of 2388	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	101
PID 1904 wrote to memory of 1860	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	103
PID 1904 wrote to memory of 1860	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	103
PID 1904 wrote to memory of 1860	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	103
PID 1904 wrote to memory of 3068	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	106
PID 1904 wrote to memory of 3068	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	106
PID 1904 wrote to memory of 3068	1904	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	106
PID 2720 wrote to memory of 756	2720	hcgyozbz.exe	112
PID 2720 wrote to memory of 756	2720	hcgyozbz.exe	112
PID 2720 wrote to memory of 756	2720	hcgyozbz.exe	112
PID 2720 wrote to memory of 756	2720	hcgyozbz.exe	112
PID 2720 wrote to memory of 756	2720	hcgyozbz.exe	112

C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\snbihldh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcgyozbz.exe" C:\Windows\SysWOW64\snbihldh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create snbihldh binPath= "C:\Windows\SysWOW64\snbihldh\hcgyozbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description snbihldh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start snbihldh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1860
- 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:3068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 660
  2⤵
  - Program crash
  PID:1920

C:\Windows\SysWOW64\snbihldh\hcgyozbz.exe
C:\Windows\SysWOW64\snbihldh\hcgyozbz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2720 -s 508
  2⤵
  - Program crash
  PID:3832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1904 -ip 1904
1⤵
PID:4364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2720 -ip 2720
1⤵
PID:2000

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\hcgyozbz.exe

Filesize
12.7MB

MD5
8ee58bcdcf50704f8463a74d229dd9ea

SHA1
cd1f9e64bd3d18041064d7e4ddd6028c4d7ce17f

SHA256
1c58ec96f3a2eafadde28f8b1299c1a7a5cd1f59e26564ac90e7ae1dff990d70

SHA512
c01a43eb464118f8d3b0b1310d3183ab901e6184aed8c9b82f4380c3389df266b73e4cc21a6ee2e95aa26c468b045332fdac11bee742ddc6b82dd2482ceffdaa

Download Submit
memory/756-14-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/756-17-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/756-16-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/1904-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1904-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/1904-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1904-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2720-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2720-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2720-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2720-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads