tofsee | 18961d594d2fc621dc82f9f3af5e5e92ff86b7043a1808c90566d406b357ffba

General

Target

2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe
Size

12.5MB
MD5

33dc12075f473b3166c8833cc3b633a3
SHA1

a8125c7aedaef0fce311103670984850b397733a
SHA256

18961d594d2fc621dc82f9f3af5e5e92ff86b7043a1808c90566d406b357ffba
SHA512

f5599030895c4c87c04a55890b2a9fcd1c75fb296850af67cd3070b8167b6de9ace2c7fb6e3fbbaf9183aac2c6073878886db75b23f245f0fa1c523074e25b01
SSDEEP

393216:CXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:

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
2816	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\gsjzphca\ImagePath = "C:\\Windows\\SysWOW64\\gsjzphca\\ckzdqoxx.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe

Deletes itself 1 IoCs

pid	Process
4404	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1132	ckzdqoxx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1132 set thread context of 4404	1132	ckzdqoxx.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4048	sc.exe
4772	sc.exe
4528	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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_33dc12075f473b3166c8833cc3b633a3_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ckzdqoxx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2232	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	87
PID 2224 wrote to memory of 2232	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	87
PID 2224 wrote to memory of 2232	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	87
PID 2224 wrote to memory of 408	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	89
PID 2224 wrote to memory of 408	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	89
PID 2224 wrote to memory of 408	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	89
PID 2224 wrote to memory of 4048	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	91
PID 2224 wrote to memory of 4048	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	91
PID 2224 wrote to memory of 4048	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	91
PID 2224 wrote to memory of 4772	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	93
PID 2224 wrote to memory of 4772	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	93
PID 2224 wrote to memory of 4772	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	93
PID 2224 wrote to memory of 4528	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	95
PID 2224 wrote to memory of 4528	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	95
PID 2224 wrote to memory of 4528	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	95
PID 1132 wrote to memory of 4404	1132	ckzdqoxx.exe	98
PID 1132 wrote to memory of 4404	1132	ckzdqoxx.exe	98
PID 1132 wrote to memory of 4404	1132	ckzdqoxx.exe	98
PID 1132 wrote to memory of 4404	1132	ckzdqoxx.exe	98
PID 1132 wrote to memory of 4404	1132	ckzdqoxx.exe	98
PID 2224 wrote to memory of 2816	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	99
PID 2224 wrote to memory of 2816	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	99
PID 2224 wrote to memory of 2816	2224	2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gsjzphca\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ckzdqoxx.exe" C:\Windows\SysWOW64\gsjzphca\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gsjzphca binPath= "C:\Windows\SysWOW64\gsjzphca\ckzdqoxx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gsjzphca "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gsjzphca
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4528
- 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:2816

C:\Windows\SysWOW64\gsjzphca\ckzdqoxx.exe
C:\Windows\SysWOW64\gsjzphca\ckzdqoxx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_33dc12075f473b3166c8833cc3b633a3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4404

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\ckzdqoxx.exe

Filesize
11.3MB

MD5
aaa8a12fec5c5cd97bc1826099c6f4f4

SHA1
2398ac039add5b4e0d9942f0e5dbfb318fa60df0

SHA256
4f84c8c8aa1ab139ed42a77e346b21cf2d13119a1fb850c683bf7b250cc86fb9

SHA512
01004020bbcac3e5bdb41bfd21a67714b6804cada1a60c270282326d4e4a532a189e18097278dc48587b0f31b5531176146d93053299717fc9ef7abd76cac7c5

Download Submit
memory/1132-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1132-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1132-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2224-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/2224-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-14-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2224-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4404-17-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download
memory/4404-10-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download
memory/4404-18-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download
memory/4404-19-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download
memory/4404-20-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads